}
}
-# UTF-8 substr function based on a PHP manual comment
if ( !function_exists( 'mb_substr' ) ) {
- function mb_substr( $str, $start ) {
- $ar = array();
- preg_match_all( '/./us', $str, $ar );
-
- if( func_num_args() >= 3 ) {
- $end = func_get_arg( 2 );
- return join( '', array_slice( $ar[0], $start, $end ) );
+ /**
+ * Fallback implementation for mb_substr, hardcoded to UTF-8.
+ * Attempts to be at least _moderately_ efficient; best optimized
+ * for relatively small offset and count values -- about 5x slower
+ * than native mb_string in my testing.
+ *
+ * Larger offsets are still fairly efficient for Latin text, but
+ * can be up to 100x slower than native if the text is heavily
+ * multibyte and we have to slog through a few hundred kb.
+ */
+ function mb_substr( $str, $start, $count='end' ) {
+ if( $start != 0 ) {
+ $split = mb_substr_split_unicode( $str, intval( $start ) );
+ $str = substr( $str, $split );
+ }
+
+ if( $count !== 'end' ) {
+ $split = mb_substr_split_unicode( $str, intval( $count ) );
+ $str = substr( $str, 0, $split );
+ }
+
+ return $str;
+ }
+
+ function mb_substr_split_unicode( $str, $splitPos ) {
+ if( $splitPos == 0 ) {
+ return 0;
+ }
+
+ $byteLen = strlen( $str );
+
+ if( $splitPos > 0 ) {
+ if( $splitPos > 256 ) {
+ // Optimize large string offsets by skipping ahead N bytes.
+ // This will cut out most of our slow time on Latin-based text,
+ // and 1/2 to 1/3 on East European and Asian scripts.
+ $bytePos = $splitPos;
+ while ($bytePos < $byteLen && $str{$bytePos} >= "\x80" && $str{$bytePos} < "\xc0")
+ ++$bytePos;
+ $charPos = mb_strlen( substr( $str, 0, $bytePos ) );
+ } else {
+ $charPos = 0;
+ $bytePos = 0;
+ }
+
+ while( $charPos++ < $splitPos ) {
+ ++$bytePos;
+ // Move past any tail bytes
+ while ($bytePos < $byteLen && $str{$bytePos} >= "\x80" && $str{$bytePos} < "\xc0")
+ ++$bytePos;
+ }
} else {
- return join( '', array_slice( $ar[0], $start ) );
+ $splitPosX = $splitPos + 1;
+ $charPos = 0; // relative to end of string; we don't care about the actual char position here
+ $bytePos = $byteLen;
+ while( $bytePos > 0 && $charPos-- >= $splitPosX ) {
+ --$bytePos;
+ // Move past any tail bytes
+ while ($bytePos > 0 && $str{$bytePos} >= "\x80" && $str{$bytePos} < "\xc0")
+ --$bytePos;
+ }
}
+
+ return $bytePos;
}
}
}
}
+
+if( !function_exists( 'mb_strpos' ) ) {
+ /**
+ * Fallback implementation of mb_strpos, hardcoded to UTF-8.
+ * @param $haystack String
+ * @param $needle String
+ * @param $offset String: optional start position
+ * @param $encoding String: optional encoding; ignored
+ * @return int
+ */
+ function mb_strpos( $haystack, $needle, $offset = 0, $encoding="" ) {
+ $needle = preg_quote( $needle, '/' );
+
+ $ar = array();
+ preg_match( '/'.$needle.'/u', $haystack, $ar, PREG_OFFSET_CAPTURE, $offset );
+
+ if( isset( $ar[0][1] ) ) {
+ return $ar[0][1];
+ } else {
+ return false;
+ }
+ }
+}
+
+if( !function_exists( 'mb_strrpos' ) ) {
+ /**
+ * Fallback implementation of mb_strrpos, hardcoded to UTF-8.
+ * @param $haystack String
+ * @param $needle String
+ * @param $offset String: optional start position
+ * @param $encoding String: optional encoding; ignored
+ * @return int
+ */
+ function mb_strrpos( $haystack, $needle, $offset = 0, $encoding = "" ) {
+ $needle = preg_quote( $needle, '/' );
+
+ $ar = array();
+ preg_match_all( '/'.$needle.'/u', $haystack, $ar, PREG_OFFSET_CAPTURE, $offset );
+
+ if( isset( $ar[0] ) && count( $ar[0] ) > 0 &&
+ isset( $ar[0][count($ar[0])-1][1] ) ) {
+ return $ar[0][count($ar[0])-1][1];
+ } else {
+ return false;
+ }
+ }
+}
+
if ( !function_exists( 'array_diff_key' ) ) {
/**
* Exists in PHP 5.1.0+
*/
function wfDebug( $text, $logonly = false ) {
global $wgOut, $wgDebugLogFile, $wgDebugComments, $wgProfileOnly, $wgDebugRawPage;
- global $wgDebugLogPrefix;
+ global $wgDebugLogPrefix, $wgShowDebug;
static $recursion = 0;
static $cache = array(); // Cache of unoutputted messages
return;
}
- if ( $wgDebugComments && !$logonly ) {
+ if ( ( $wgDebugComments || $wgShowDebug ) && !$logonly ) {
$cache[] = $text;
if ( !isset( $wgOut ) ) {
/**
* Send a line giving PHP memory usage.
- * @param $exact Bool : print exact values instead of kilobytes (default: false)
+ * @param $exact Bool: print exact values instead of kilobytes (default: false)
*/
function wfDebugMem( $exact = false ) {
$mem = memory_get_usage();
// IPv6 bracketed host
$protocol = $m[1];
$host = $m[2];
- $port = $m[3];
+ $port = intval( $m[3] );
$prefix = isset( $m[4] ) ? $m[4] : false;
+ $domain = AF_INET6;
} elseif ( preg_match( '!^(tcp|udp):(?://)?([a-zA-Z0-9.-]+):(\d+)(?:/(.*))?$!', $file, $m ) ) {
$protocol = $m[1];
$host = $m[2];
- $port = $m[3];
+ if ( !IP::isIPv4( $host ) ) {
+ $host = gethostbyname( $host );
+ }
+ $port = intval( $m[3] );
$prefix = isset( $m[4] ) ? $m[4] : false;
+ $domain = AF_INET;
} else {
throw new MWException( __METHOD__.": Invalid UDP specification" );
}
}
}
- $sock = fsockopen( "$protocol://$host", $port );
+ $sock = socket_create( $domain, SOCK_DGRAM, SOL_UDP );
if ( !$sock ) {
return;
}
- fwrite( $sock, $text );
- fclose( $sock );
+ socket_sendto( $sock, $text, strlen( $text ), 0, $host, $port );
+ socket_close( $sock );
} else {
wfSuppressWarnings();
$exists = file_exists( $file );
*/
function wfLogProfilingData() {
global $wgRequestTime, $wgDebugLogFile, $wgDebugRawPage, $wgRequest;
- global $wgProfiler, $wgUser;
- if ( !isset( $wgProfiler ) )
- return;
-
+ global $wgProfiler, $wgProfileLimit, $wgUser;
+ # Profiling must actually be enabled...
+ if( !isset( $wgProfiler ) ) return;
+ # Get total page request time
$now = wfTime();
$elapsed = $now - $wgRequestTime;
+ # Only show pages that longer than $wgProfileLimit time (default is 0)
+ if( $elapsed <= $wgProfileLimit ) return;
$prof = wfGetProfilingOutput( $wgRequestTime, $elapsed );
$forward = '';
if( !empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) )
* @param $args
* @param $useDB Boolean
* @param $transform Boolean: Whether or not to transform the message.
- * @param $forContent Boolean
+ * @param $forContent Mixed: Language code, or false for user lang, true for content lang.
* @return String: the requested message.
*/
-function wfMsgReal( $key, $args, $useDB = true, $forContent=false, $transform = true ) {
+function wfMsgReal( $key, $args, $useDB = true, $forContent = false, $transform = true ) {
wfProfileIn( __METHOD__ );
$message = wfMsgGetKey( $key, $useDB, $forContent, $transform );
$message = wfMsgReplaceArgs( $message, $args );
* This function provides the message source for messages to be edited which are *not* stored in the database.
* @param $key String:
*/
-function wfMsgWeirdKey ( $key ) {
+function wfMsgWeirdKey( $key ) {
$source = wfMsgGetKey( $key, false, true, false );
if ( wfEmptyMsg( $key, $source ) )
return "";
/**
* Fetch a message string value, but don't replace any keys yet.
- * @param string $key
- * @param bool $useDB
- * @param string $langcode Code of the language to get the message for, or
- * behaves as a content language switch if it is a
- * boolean.
+ * @param $key String
+ * @param $useDB Bool
+ * @param $langCode String: Code of the language to get the message for, or
+ * behaves as a content language switch if it is a boolean.
+ * @param $transform Boolean: whether to parse magic words, etc.
* @return string
* @private
*/
/**
* Replace message parameter keys on the given formatted output.
*
- * @param string $message
- * @param array $args
+ * @param $message String
+ * @param $args Array
* @return string
* @private
*/
* to pre-escape them if you really do want plaintext, or just wrap
* the whole thing in htmlspecialchars().
*
- * @param string $key
+ * @param $key String
* @param string ... parameters
* @return string
*/
* to pre-escape them if you really do want plaintext, or just wrap
* the whole thing in htmlspecialchars().
*
- * @param string $key
+ * @param $key String
* @param string ... parameters
* @return string
*/
/**
* Returns message in the requested format
- * @param string $key Key of the message
- * @param array $options Processing rules. Can take the following options:
+ * @param $key String: key of the message
+ * @param $options Array: processing rules. Can take the following options:
* <i>parse</i>: parses wikitext to html
* <i>parseinline</i>: parses wikitext to html and removes the surrounding
* p's added by parser or tidy
foreach( $options as $arrayKey => $option ) {
if( !preg_match( '/^[0-9]+|language$/', $arrayKey ) ) {
# An unknown index, neither numeric nor "language"
- trigger_error( "wfMsgExt called with incorrect parameter key $arrayKey", E_USER_WARNING );
+ wfWarn( "wfMsgExt called with incorrect parameter key $arrayKey", 1, E_USER_WARNING );
} elseif( preg_match( '/^[0-9]+$/', $arrayKey ) && !in_array( $option,
array( 'parse', 'parseinline', 'escape', 'escapenoentities',
'replaceafter', 'parsemag', 'content' ) ) ) {
# A numeric index with unknown value
- trigger_error( "wfMsgExt called with incorrect parameter $option", E_USER_WARNING );
+ wfWarn( "wfMsgExt called with incorrect parameter $option", 1, E_USER_WARNING );
}
}
/**
* Print a simple message and die, returning nonzero to the shell if any.
* Plain die() fails to return nonzero to the shell if you pass a string.
- * @param string $msg
+ * @param $msg String
*/
function wfDie( $msg='' ) {
echo $msg;
* Throw a debugging exception. This function previously once exited the process,
* but now throws an exception instead, with similar results.
*
- * @param string $msg Message shown when dieing.
+ * @param $msg String: message shown when dieing.
*/
function wfDebugDieBacktrace( $msg = '' ) {
throw new MWException( $msg );
return $host;
}
- /**
- * Returns a HTML comment with the elapsed time since request.
- * This method has no side effects.
- * @return string
- */
- function wfReportTime() {
- global $wgRequestTime, $wgShowHostnames;
+/**
+ * Returns a HTML comment with the elapsed time since request.
+ * This method has no side effects.
+ * @return string
+ */
+function wfReportTime() {
+ global $wgRequestTime, $wgShowHostnames;
- $now = wfTime();
- $elapsed = $now - $wgRequestTime;
+ $now = wfTime();
+ $elapsed = $now - $wgRequestTime;
- return $wgShowHostnames
- ? sprintf( "<!-- Served by %s in %01.3f secs. -->", wfHostname(), $elapsed )
- : sprintf( "<!-- Served in %01.3f secs. -->", $elapsed );
- }
+ return $wgShowHostnames
+ ? sprintf( "<!-- Served by %s in %01.3f secs. -->", wfHostname(), $elapsed )
+ : sprintf( "<!-- Served in %01.3f secs. -->", $elapsed );
+}
/**
* Safety wrapper for debug_backtrace().
* murky circumstances, which may be triggered in part by stub objects
* or other fancy talkin'.
*
- * Will return an empty array if Zend Optimizer is detected, otherwise
- * the output from debug_backtrace() (trimmed).
+ * Will return an empty array if Zend Optimizer is detected or if
+ * debug_backtrace is disabled, otherwise the output from
+ * debug_backtrace() (trimmed).
*
* @return array of backtrace information
*/
function wfDebugBacktrace() {
+ static $disabled = null;
+
if( extension_loaded( 'Zend Optimizer' ) ) {
wfDebug( "Zend Optimizer detected; skipping debug_backtrace for safety.\n" );
return array();
- } else {
- return array_slice( debug_backtrace(), 1 );
}
+
+ if ( is_null( $disabled ) ) {
+ $disabled = false;
+ $functions = explode( ',', ini_get( 'disable_functions' ) );
+ $functions = array_map( 'trim', $functions );
+ $functions = array_map( 'strtolower', $functions );
+ if ( in_array( 'debug_backtrace', $functions ) ) {
+ wfDebug( "debug_backtrace is in disabled_functions\n" );
+ $disabled = true;
+ }
+ }
+ if ( $disabled ) {
+ return array();
+ }
+
+ return array_slice( debug_backtrace(), 1 );
}
function wfBacktrace() {
*/
function wfShowingResults( $offset, $limit ) {
global $wgLang;
- return wfMsgExt( 'showingresults', array( 'parseinline' ), $wgLang->formatNum( $limit ), $wgLang->formatNum( $offset+1 ) );
+ return wfMsgExt( 'showingresults', array( 'parseinline' ), $wgLang->formatNum( $limit ),
+ $wgLang->formatNum( $offset+1 ) );
}
/**
*/
function wfShowingResultsNum( $offset, $limit, $num ) {
global $wgLang;
- return wfMsgExt( 'showingresultsnum', array( 'parseinline' ), $wgLang->formatNum( $limit ), $wgLang->formatNum( $offset+1 ), $wgLang->formatNum( $num ) );
+ return wfMsgExt( 'showingresultsnum', array( 'parseinline' ), $wgLang->formatNum( $limit ),
+ $wgLang->formatNum( $offset+1 ), $wgLang->formatNum( $num ) );
}
/**
- * @todo document
+ * Generate (prev x| next x) (20|50|100...) type links for paging
+ * @param $offset String
+ * @param $limit Integer
+ * @param $link String
+ * @param $query String: optional URL query parameter string
+ * @param $atend Bool: optional param for specified if this is the last page
*/
function wfViewPrevNext( $offset, $limit, $link, $query = '', $atend = false ) {
global $wgLang;
$fmtLimit = $wgLang->formatNum( $limit );
- $prev = wfMsg( 'prevn', $fmtLimit );
- $next = wfMsg( 'nextn', $fmtLimit );
-
+ // FIXME: Why on earth this needs one message for the text and another one for tooltip??
+ # Get prev/next link display text
+ $prev = wfMsgExt( 'prevn', array('parsemag','escape'), $fmtLimit );
+ $next = wfMsgExt( 'nextn', array('parsemag','escape'), $fmtLimit );
+ # Get prev/next link title text
+ $pTitle = wfMsgExt( 'prevn-title', array('parsemag','escape'), $fmtLimit );
+ $nTitle = wfMsgExt( 'nextn-title', array('parsemag','escape'), $fmtLimit );
+ # Fetch the title object
if( is_object( $link ) ) {
$title =& $link;
} else {
return false;
}
}
-
- if ( 0 != $offset ) {
+ # Make 'previous' link
+ if( 0 != $offset ) {
$po = $offset - $limit;
- if ( $po < 0 ) { $po = 0; }
+ $po = max($po,0);
$q = "limit={$limit}&offset={$po}";
- if ( '' != $query ) { $q .= '&'.$query; }
- $plink = '<a href="' . $title->escapeLocalUrl( $q ) . "\" class=\"mw-prevlink\">{$prev}</a>";
- } else { $plink = $prev; }
-
+ if( $query != '' ) {
+ $q .= '&'.$query;
+ }
+ $plink = '<a href="' . $title->escapeLocalUrl( $q ) . "\" title=\"{$pTitle}\" class=\"mw-prevlink\">{$prev}</a>";
+ } else {
+ $plink = $prev;
+ }
+ # Make 'next' link
$no = $offset + $limit;
- $q = 'limit='.$limit.'&offset='.$no;
- if ( '' != $query ) { $q .= '&'.$query; }
-
- if ( $atend ) {
+ $q = "limit={$limit}&offset={$no}";
+ if( $query != '' ) {
+ $q .= '&'.$query;
+ }
+ if( $atend ) {
$nlink = $next;
} else {
- $nlink = '<a href="' . $title->escapeLocalUrl( $q ) . "\" class=\"mw-nextlink\">{$next}</a>";
+ $nlink = '<a href="' . $title->escapeLocalUrl( $q ) . "\" title=\"{$nTitle}\" class=\"mw-nextlink\">{$next}</a>";
}
- $nums = $wgLang->pipeList( wfNumLink( $offset, 20, $title, $query ),
- wfNumLink( $offset, 50, $title, $query ),
- wfNumLink( $offset, 100, $title, $query ),
- wfNumLink( $offset, 250, $title, $query ),
- wfNumLink( $offset, 500, $title, $query ) );
-
- return wfMsg( 'viewprevnext', $plink, $nlink, $nums );
+ # Make links to set number of items per page
+ $nums = $wgLang->pipeList( array(
+ wfNumLink( $offset, 20, $title, $query ),
+ wfNumLink( $offset, 50, $title, $query ),
+ wfNumLink( $offset, 100, $title, $query ),
+ wfNumLink( $offset, 250, $title, $query ),
+ wfNumLink( $offset, 500, $title, $query )
+ ) );
+ return wfMsgHtml( 'viewprevnext', $plink, $nlink, $nums );
}
/**
- * @todo document
+ * Generate links for (20|50|100...) items-per-page links
+ * @param $offset String
+ * @param $limit Integer
+ * @param $title Title
+ * @param $query String: optional URL query parameter string
*/
-function wfNumLink( $offset, $limit, &$title, $query = '' ) {
+function wfNumLink( $offset, $limit, $title, $query = '' ) {
global $wgLang;
- if ( '' == $query ) { $q = ''; }
- else { $q = $query.'&'; }
- $q .= 'limit='.$limit.'&offset='.$offset;
-
+ if( $query == '' ) {
+ $q = '';
+ } else {
+ $q = $query.'&';
+ }
+ $q .= "limit={$limit}&offset={$offset}";
$fmtLimit = $wgLang->formatNum( $limit );
- $s = '<a href="' . $title->escapeLocalUrl( $q ) . "\" class=\"mw-numlink\">{$fmtLimit}</a>";
+ $lTitle = wfMsgExt('shown-title',array('parsemag','escape'),$limit);
+ $s = '<a href="' . $title->escapeLocalUrl( $q ) . "\" title=\"{$lTitle}\" class=\"mw-numlink\">{$fmtLimit}</a>";
return $s;
}
* not filter out characters which have special meaning only at the
* start of a line, such as "*".
*
- * @param string $text Text to be escaped
+ * @param $text String: text to be escaped
*/
function wfEscapeWikiText( $text ) {
$text = str_replace(
if ( '' != $cgi ) {
$cgi .= '&';
}
- if(is_array($value))
- {
+ if ( is_array( $value ) ) {
$firstTime = true;
- foreach($value as $v)
- {
- $cgi .= ($firstTime ? '' : '&') .
+ foreach ( $value as $v ) {
+ $cgi .= ( $firstTime ? '' : '&') .
urlencode( $key . '[]' ) . '=' .
urlencode( $v );
$firstTime = false;
}
- }
- else
+ } else {
+ if ( is_object( $value ) ) {
+ $value = $value->__toString();
+ }
$cgi .= urlencode( $key ) . '=' .
urlencode( $value );
+ }
}
}
return $cgi;
* arrays. Of course, keys and values are urldecode()d. Don't try passing in-
* valid query strings, or it will explode.
*
- * @param $query string Query string
+ * @param $query String: query string
* @return array Array version of input
*/
function wfCgiToArray( $query ) {
* Append a query string to an existing URL, which may or may not already
* have query string parameters already. If so, they will be combined.
*
- * @param string $url
- * @param string $query
+ * @param $url String
+ * @param $query Mixed: string or associative array
* @return string
*/
function wfAppendQuery( $url, $query ) {
+ if ( is_array( $query ) ) {
+ $query = wfArrayToCGI( $query );
+ }
if( $query != '' ) {
if( false === strpos( $url, '?' ) ) {
$url .= '?';
}
/**
- * Expand a potentially local URL to a fully-qualified URL.
- * Assumes $wgServer is correct. :)
- * @param string $url, either fully-qualified or a local path + query
+ * Expand a potentially local URL to a fully-qualified URL. Assumes $wgServer
+ * is correct. Also doesn't handle any type of relative URL except one
+ * starting with a single "/": this won't work with current-path-relative URLs
+ * like "subdir/foo.html", protocol-relative URLs like
+ * "//en.wikipedia.org/wiki/", etc. TODO: improve this!
+ *
+ * @param $url String: either fully-qualified or a local path + query
* @return string Fully-qualified URL
*/
function wfExpandUrl( $url ) {
/**
* Returns unified plain-text diff of two texts.
* Useful for machine processing of diffs.
- * @param $before string The text before the changes.
- * @param $after string The text after the changes.
- * @param $params string Command-line options for the diff command.
- * @return string Unified diff of $before and $after
+ * @param $before String: the text before the changes.
+ * @param $after String: the text after the changes.
+ * @param $params String: command-line options for the diff command.
+ * @return String: unified diff of $before and $after
*/
function wfDiff( $before, $after, $params = '-u' ) {
+ if ($before == $after) {
+ return '';
+ }
+
global $wgDiff;
# This check may also protect against code injection in
* Note that some PHP configuration options may add output buffer
* layers which cannot be removed; these are left in place.
*
- * @param bool $resetGzipEncoding
+ * @param $resetGzipEncoding Bool
*/
function wfResetOutputBuffers( $resetGzipEncoding=true ) {
if( $resetGzipEncoding ) {
* Returns the matching MIME type (or wildcard) if a match, otherwise
* NULL if no match.
*
- * @param string $type
- * @param array $avail
+ * @param $type String
+ * @param $avail Array
* @return string
* @private
*/
* array of type to preference (preference is a float between 0.0 and 1.0).
* Wildcards in the types are acceptable.
*
- * @param array $cprefs Client's acceptable type list
- * @param array $sprefs Server's offered types
+ * @param $cprefs Array: client's acceptable type list
+ * @param $sprefs Array: server's offered types
* @return string
*
* @todo FIXME: doesn't handle params like 'text/plain; charset=UTF-8'
define('TS_DB2', 8);
/**
- * @param mixed $outputtype A timestamp in one of the supported formats, the
- * function will autodetect which format is supplied
- * and act accordingly.
- * @return string Time in the format specified in $outputtype
+ * @param $outputtype Mixed: A timestamp in one of the supported formats, the
+ * function will autodetect which format is supplied and act
+ * accordingly.
+ * @param $ts Mixed: the timestamp to convert or 0 for the current timestamp
+ * @return String: in the format specified in $outputtype
*/
-function wfTimestamp($outputtype=TS_UNIX,$ts=0) {
+function wfTimestamp( $outputtype = TS_UNIX, $ts = 0 ) {
$uts = 0;
$da = array();
if ($ts==0) {
} elseif (preg_match('/^\d{1,13}$/D',$ts)) {
# TS_UNIX
$uts = $ts;
- } elseif (preg_match('/^\d{1,2}-...-\d\d(?:\d\d)? \d\d\.\d\d\.\d\d/', $ts)) {
- # TS_ORACLE
+ } elseif (preg_match('/^\d{2}-\d{2}-\d{4} \d{2}:\d{2}:\d{2}.\d{6}$/', $ts)) {
+ # TS_ORACLE // session altered to DD-MM-YYYY HH24:MI:SS.FF6
$uts = strtotime(preg_replace('/(\d\d)\.(\d\d)\.(\d\d)(\.(\d+))?/', "$1:$2:$3",
str_replace("+00:00", "UTC", $ts)));
} elseif (preg_match('/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(?:\.*\d*)?Z$/', $ts, $da)) {
case TS_RFC2822:
return gmdate( 'D, d M Y H:i:s', $uts ) . ' GMT';
case TS_ORACLE:
- return gmdate( 'd-M-y h.i.s A', $uts) . ' +00:00';
+ return gmdate( 'd-m-Y H:i:s.000000', $uts);
+ //return gmdate( 'd-M-y h.i.s A', $uts) . ' +00:00';
case TS_POSTGRES:
return gmdate( 'Y-m-d H:i:s', $uts) . ' GMT';
case TS_DB2:
/**
* Return a formatted timestamp, or null if input is null.
* For dealing with nullable timestamp columns in the database.
- * @param int $outputtype
- * @param string $ts
- * @return string
+ * @param $outputtype Integer
+ * @param $ts String
+ * @return String
*/
function wfTimestampOrNull( $outputtype = TS_UNIX, $ts = null ) {
if( is_null( $ts ) ) {
/**
* Check if the operating system is Windows
*
- * @return bool True if it's Windows, False otherwise.
+ * @return Bool: true if it's Windows, False otherwise.
*/
function wfIsWindows() {
if (substr(php_uname(), 0, 7) == 'Windows') {
* NOTE: When possible, use the tempfile() function to create temporary
* files to avoid race conditions on file creation, etc.
*
- * @return string
+ * @return String
*/
function wfTempDir() {
foreach( array( 'TMPDIR', 'TMP', 'TEMP' ) as $var ) {
/**
* Make directory, and make all parent directories if they don't exist
*
- * @param string $dir Full path to directory to create
- * @param int $mode Chmod value to use, default is $wgDirectoryMode
+ * @param $dir String: full path to directory to create
+ * @param $mode Integer: chmod value to use, default is $wgDirectoryMode
+ * @param $caller String: optional caller param for debugging.
* @return bool
*/
-function wfMkdirParents( $dir, $mode = null ) {
+function wfMkdirParents( $dir, $mode = null, $caller = null ) {
global $wgDirectoryMode;
+ if ( !is_null( $caller ) ) {
+ wfDebug( "$caller: called wfMkdirParents($dir)" );
+ }
+
if( strval( $dir ) === '' || file_exists( $dir ) )
return true;
+ $dir = str_replace( array( '\\', '/' ), DIRECTORY_SEPARATOR, $dir );
+
if ( is_null( $mode ) )
$mode = $wgDirectoryMode;
- return mkdir( $dir, $mode, true ); // PHP5 <3
+ $ok = mkdir( $dir, $mode, true ); // PHP5 <3
+ if( !$ok ) {
+ // PHP doesn't report the path in its warning message, so add our own to aid in diagnosis.
+ trigger_error( __FUNCTION__ . ": failed to mkdir \"$dir\" mode $mode", E_USER_WARNING );
+ }
+ return $ok;
}
/**
}
/**
- * @param mixed $nr The number to format
- * @param int $acc The number of digits after the decimal point, default 2
- * @param bool $round Whether or not to round the value, default true
+ * @param $nr Mixed: the number to format
+ * @param $acc Integer: the number of digits after the decimal point, default 2
+ * @param $round Boolean: whether or not to round the value, default true
* @return float
*/
function wfPercent( $nr, $acc = 2, $round = true ) {
/**
* Encrypt a username/password.
*
- * @param string $userid ID of the user
- * @param string $password Password of the user
- * @return string Hashed password
+ * @param $userid Integer: ID of the user
+ * @param $password String: password of the user
+ * @return String: hashed password
* @deprecated Use User::crypt() or User::oldCrypt() instead
*/
function wfEncryptPassword( $userid, $password ) {
* looked up didn't exist but a XHTML string, this function checks for the
* nonexistance of messages by looking at wfMsg() output
*
- * @param $msg The message key looked up
- * @param $wfMsgOut The output of wfMsg*()
- * @return bool
+ * @param $msg String: the message key looked up
+ * @param $wfMsgOut String: the output of wfMsg*()
+ * @return Boolean
*/
function wfEmptyMsg( $msg, $wfMsgOut ) {
return $wfMsgOut === htmlspecialchars( "<$msg>" );
/**
* Find out whether or not a mixed variable exists in a string
*
- * @param mixed needle
- * @param string haystack
- * @return bool
+ * @param $needle String
+ * @param $str String
+ * @return Boolean
*/
function in_string( $needle, $str ) {
return strpos( $str, $needle ) !== false;
/**
* Returns a regular expression of url protocols
*
- * @return string
+ * @return String
*/
function wfUrlProtocols() {
global $wgUrlProtocols;
+
+ // This function is called a lot, cache its return value
+ // TODO: Cache this in memcached instead?
+ static $retval = null;
+ if ( !is_null( $retval ) )
+ return $retval;
// Support old-style $wgUrlProtocols strings, for backwards compatibility
// with LocalSettings files from 1.5
foreach ($wgUrlProtocols as $protocol)
$protocols[] = preg_quote( $protocol, '/' );
- return implode( '|', $protocols );
+ $retval = implode( '|', $protocols );
} else {
- return $wgUrlProtocols;
+ $retval = $wgUrlProtocols;
}
+
+ return $retval;
}
/**
*
* I frickin' hate PHP... :P
*
- * @param string $setting
- * @return bool
+ * @param $setting String
+ * @return Bool
*/
function wfIniGetBool( $setting ) {
$val = ini_get( $setting );
$cmd = escapeshellarg( $script ) . " $time $mem $filesize " . escapeshellarg( $cmd );
}
}
- } elseif ( php_uname( 's' ) == 'Windows NT' ) {
+ } elseif ( php_uname( 's' ) == 'Windows NT' &&
+ version_compare( PHP_VERSION, '5.3.0', '<' ) )
+ {
# This is a hack to work around PHP's flawed invocation of cmd.exe
# http://news.php.net/php.internals/21796
+ # Which is fixed in 5.3.0 :)
$cmd = '"' . $cmd . '"';
}
wfDebug( "wfShellExec: $cmd\n" );
*
* @see perldoc -f use
*
- * @param mixed $version The version to check, can be a string, an integer, or
- * a float
+ * @param $req_ver Mixed: the version to check, can be a string, an integer, or
+ * a float
*/
function wfUsePHP( $req_ver ) {
$php_ver = PHP_VERSION;
*
* @see perldoc -f use
*
- * @param mixed $version The version to check, can be a string, an integer, or
- * a float
+ * @param $req_ver Mixed: the version to check, can be a string, an integer, or
+ * a float
*/
function wfUseMW( $req_ver ) {
global $wgVersion;
* PHP's basename() only considers '\' a pathchar on Windows and Netware.
* We'll consider it so always, as we don't want \s in our Unix paths either.
*
- * @param string $path
- * @param string $suffix to remove if present
- * @return string
+ * @param $path String
+ * @param $suffix String: to remove if present
+ * @return String
*/
function wfBaseName( $path, $suffix='' ) {
$encSuffix = ($suffix == '')
* May explode on non-matching case-insensitive paths,
* funky symlinks, etc.
*
- * @param string $path Absolute destination path including target filename
- * @param string $from Absolute source path, directory only
- * @return string
+ * @param $path String: absolute destination path including target filename
+ * @param $from String: Absolute source path, directory only
+ * @return String
*/
function wfRelativePath( $path, $from ) {
// Normalize mixed input on Windows...
* Backwards array plus for people who haven't bothered to read the PHP manual
* XXX: will not darn your socks for you.
*
- * @param array $array1, [$array2, [...]]
- * @return array
+ * @param $array1 Array
+ * @param [$array2, [...]] Arrays
+ * @return Array
*/
function wfArrayMerge( $array1/* ... */ ) {
$args = func_get_args();
* 2) Handles protocols that don't use :// (e.g., mailto: and news:) correctly
* 3) Adds a "delimiter" element to the array, either '://' or ':' (see (2))
*
- * @param string $url A URL to parse
- * @return array Bits of the URL in an associative array, per PHP docs
+ * @param $url String: a URL to parse
+ * @return Array: bits of the URL in an associative array, per PHP docs
*/
function wfParseUrl( $url ) {
global $wgUrlProtocols; // Allow all protocols defined in DefaultSettings/LocalSettings.php
* Supports base 2 through 36; digit values 10-36 are represented
* as lowercase letters a-z. Input is case-insensitive.
*
- * @param $input string of digits
- * @param $sourceBase int 2-36
- * @param $destBase int 2-36
- * @param $pad int 1 or greater
- * @param $lowercase bool
- * @return string or false on invalid input
+ * @param $input String: of digits
+ * @param $sourceBase Integer: 2-36
+ * @param $destBase Integer: 2-36
+ * @param $pad Integer: 1 or greater
+ * @param $lowercase Boolean
+ * @return String or false on invalid input
*/
function wfBaseConvert( $input, $sourceBase, $destBase, $pad=1, $lowercase=true ) {
$input = strval( $input );
/**
* Create an object with a given name and an array of construct parameters
- * @param string $name
- * @param array $p parameters
+ * @param $name String
+ * @param $p Array: parameters
*/
function wfCreateObject( $name, $p ){
$p = array_values( $p );
* Alias for modularized function
* @deprecated Use Http::get() instead
*/
-function wfGetHTTP( $url, $timeout = 'default' ) {
+function wfGetHTTP( $url ) {
wfDeprecated(__FUNCTION__);
- return Http::get( $url, $timeout );
+ return Http::get( $url );
}
/**
* Initialise php session
*/
function wfSetupSession() {
- global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain, $wgCookieSecure, $wgCookieHttpOnly;
+ global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain,
+ $wgCookieSecure, $wgCookieHttpOnly, $wgSessionHandler;
if( $wgSessionsInMemcached ) {
require_once( 'MemcachedSessions.php' );
- } elseif( 'files' != ini_get( 'session.save_handler' ) ) {
- # If it's left on 'user' or another setting from another
- # application, it will end up failing. Try to recover.
- ini_set ( 'session.save_handler', 'files' );
+ } elseif( $wgSessionHandler && $wgSessionHandler != ini_get( 'session.save_handler' ) ) {
+ # Only set this if $wgSessionHandler isn't null and session.save_handler
+ # hasn't already been set to the desired value (that causes errors)
+ ini_set ( 'session.save_handler', $wgSessionHandler );
}
$httpOnlySafe = wfHttpOnlySafe();
wfDebugLog( 'cookie',
/**
* Get an object from the precompiled serialized directory
*
- * @return mixed The variable on success, false on failure
+ * @return Mixed: the variable on success, false on failure
*/
function wfGetPrecompiledData( $name ) {
global $IP;
return $caller;
}
-/** Return a string consisting all callers in stack, somewhat useful sometimes for profiling specific points */
+/**
+ * Return a string consisting all callers in stack, somewhat useful sometimes
+ * for profiling specific points
+ */
function wfGetAllCallers() {
return implode('/', array_map('wfFormatStackFrame',array_reverse(wfDebugBacktrace())));
}
-/** Return a string representation of frame */
+/**
+ * Return a string representation of frame
+ */
function wfFormatStackFrame($frame) {
return isset( $frame["class"] )?
$frame["class"]."::".$frame["function"]:
function wfMemcKey( /*... */ ) {
$args = func_get_args();
$key = wfWikiID() . ':' . implode( ':', $args );
+ $key = str_replace( ' ', '_', $key );
return $key;
}
* Get an ASCII string identifying this wiki
* This is used as a prefix in memcached keys
*/
-function wfWikiID( $db = null ) {
- if( $db instanceof Database ) {
- return $db->getWikiID();
+function wfWikiID() {
+ global $wgDBprefix, $wgDBname, $wgWikiId;
+ if( $wgWikiId )
+ return $wgWikiId;
+ if ( $wgDBprefix ) {
+ return "$wgDBname-$wgDBprefix";
} else {
- global $wgDBprefix, $wgDBname;
- if ( $wgDBprefix ) {
- return "$wgDBname-$wgDBprefix";
- } else {
- return $wgDBname;
- }
+ return $wgDBname;
}
}
/*
* Get a Database object.
- * @param integer $db Index of the connection to get. May be DB_MASTER for the
- * master (for write queries), DB_SLAVE for potentially lagged
- * read queries, or an integer >= 0 for a particular server.
+ * @param $db Integer: index of the connection to get. May be DB_MASTER for the
+ * master (for write queries), DB_SLAVE for potentially lagged read
+ * queries, or an integer >= 0 for a particular server.
*
- * @param mixed $groups Query groups. An array of group names that this query
- * belongs to. May contain a single string if the query is only
- * in one group.
+ * @param $groups Mixed: query groups. An array of group names that this query
+ * belongs to. May contain a single string if the query is only
+ * in one group.
*
- * @param string $wiki The wiki ID, or false for the current wiki
+ * @param $wiki String: the wiki ID, or false for the current wiki
*
* Note: multiple calls to wfGetDB(DB_SLAVE) during the course of one request
* will always return the same object, unless the underlying connection or load
/**
* Get a load balancer object.
*
- * @param array $groups List of query groups
- * @param string $wiki Wiki ID, or false for the current wiki
+ * @param $wiki String: wiki ID, or false for the current wiki
* @return LoadBalancer
*/
function wfGetLB( $wiki = false ) {
/**
* Find a file.
* Shortcut for RepoGroup::singleton()->findFile()
- * @param mixed $title Title object or string. May be interwiki.
- * @param mixed $time Requested time for an archived image, or false for the
- * current version. An image object will be returned which
- * was created at the specified time.
- * @param mixed $flags FileRepo::FIND_ flags
- * @param boolean $bypass Bypass the file cache even if it could be used
+ * @param $options Associative array of options:
+ * time: requested time for an archived image, or false for the
+ * current version. An image object will be returned which was
+ * created at the specified time.
+ *
+ * ignoreRedirect: If true, do not follow file redirects
+ *
+ * private: If true, return restricted (deleted) files if the current
+ * user is allowed to view them. Otherwise, such files will not
+ * be found.
+ *
+ * bypassCache: If true, do not use the process-local cache of File objects
+ *
* @return File, or false if the file does not exist
*/
-function wfFindFile( $title, $time = false, $flags = 0, $bypass = false ) {
- if( !$time && !$flags && !$bypass ) {
- return FileCache::singleton()->findFile( $title );
- } else {
- return RepoGroup::singleton()->findFile( $title, $time, $flags );
- }
+function wfFindFile( $title, $options = array() ) {
+ return RepoGroup::singleton()->findFile( $title, $options );
}
/**
/**
* Should low-performance queries be disabled?
*
- * @return bool
+ * @return Boolean
*/
function wfQueriesMustScale() {
global $wgMiserMode;
* Get the path to a specified script file, respecting file
* extensions; this is a wrapper around $wgScriptExtension etc.
*
- * @param string $script Script filename, sans extension
- * @return string
+ * @param $script String: script filename, sans extension
+ * @return String
*/
function wfScript( $script = 'index' ) {
global $wgScriptPath, $wgScriptExtension;
return "{$wgScriptPath}/{$script}{$wgScriptExtension}";
}
+/**
+ * Get the script url.
+ *
+ * @return script url
+ */
+function wfGetScriptUrl(){
+ if( isset( $_SERVER['SCRIPT_NAME'] ) ) {
+ #
+ # as it was called, minus the query string.
+ #
+ # Some sites use Apache rewrite rules to handle subdomains,
+ # and have PHP set up in a weird way that causes PHP_SELF
+ # to contain the rewritten URL instead of the one that the
+ # outside world sees.
+ #
+ # If in this mode, use SCRIPT_URL instead, which mod_rewrite
+ # provides containing the "before" URL.
+ return $_SERVER['SCRIPT_NAME'];
+ } else {
+ return $_SERVER['URL'];
+ }
+}
/**
* Convenience function converts boolean values into "true"
* or "false" (string) values
*
- * @param bool $value
- * @return string
+ * @param $value Boolean
+ * @return String
*/
function wfBoolToStr( $value ) {
return $value ? 'true' : 'false';
/**
* Load an extension messages file
- *
- * @param string $extensionName Name of extension to load messages from\for.
- * @param string $langcode Language to load messages for, or false for default
- * behvaiour (en, content language and user language).
- * @since r24808 (v1.11) Using this method of loading extension messages will not work
- * on MediaWiki prior to that
+ * @deprecated
*/
function wfLoadExtensionMessages( $extensionName, $langcode = false ) {
- global $wgExtensionMessagesFiles, $wgMessageCache, $wgLang, $wgContLang;
-
- #For recording whether extension message files have been loaded in a given language.
- static $loaded = array();
-
- if( !array_key_exists( $extensionName, $loaded ) ) {
- $loaded[$extensionName] = array();
- }
-
- if ( !isset($wgExtensionMessagesFiles[$extensionName]) ) {
- throw new MWException( "Messages file for extensions $extensionName is not defined" );
- }
-
- if( !$langcode && !array_key_exists( '*', $loaded[$extensionName] ) ) {
- # Just do en, content language and user language.
- $wgMessageCache->loadMessagesFile( $wgExtensionMessagesFiles[$extensionName], false );
- # Mark that they have been loaded.
- $loaded[$extensionName]['en'] = true;
- $loaded[$extensionName][$wgLang->getCode()] = true;
- $loaded[$extensionName][$wgContLang->getCode()] = true;
- # Mark that this part has been done to avoid weird if statements.
- $loaded[$extensionName]['*'] = true;
- } elseif( is_string( $langcode ) && !array_key_exists( $langcode, $loaded[$extensionName] ) ) {
- # Load messages for specified language.
- $wgMessageCache->loadMessagesFile( $wgExtensionMessagesFiles[$extensionName], $langcode );
- # Mark that they have been loaded.
- $loaded[$extensionName][$langcode] = true;
- }
}
/**
/**
* Displays a maxlag error
*
- * @param string $host Server that lags the most
- * @param int $lag Maxlag (actual)
- * @param int $maxLag Maxlag (requested)
+ * @param $host String: server that lags the most
+ * @param $lag Integer: maxlag (actual)
+ * @param $maxLag Integer: maxlag (requested)
*/
function wfMaxlagError( $host, $lag, $maxLag ) {
global $wgShowHostnames;
}
/**
- * Throws an E_USER_NOTICE saying that $function is deprecated
- * @param string $function
+ * Displays a avglag error
+ *
+ * @param $lag Integer: avglag (actual)
+ * @param $avgLag Integer: avglag (requested)
+ */
+function wfAvglagError( $lag, $avgLag ) {
+ header( 'HTTP/1.1 503 Service Unavailable' );
+ header( 'Retry-After: ' . max( intval( $avgLag ), 5 ) );
+ header( 'X-Database-Lag: ' . intval( $lag ) );
+ header( 'Content-Type: text/plain' );
+
+ echo "Lagged: $lag seconds average\n";
+}
+
+/**
+ * Throws a warning that $function is deprecated
+ * @param $function String
* @return null
*/
function wfDeprecated( $function ) {
- global $wgDebugLogFile;
- if ( !$wgDebugLogFile ) {
- return;
+ static $functionsWarned = array();
+ if ( !isset( $functionsWarned[$function] ) ) {
+ $functionsWarned[$function] = true;
+ wfWarn( "Use of $function is deprecated.", 2 );
}
+}
+
+/**
+ * Send a warning either to the debug log or in a PHP error depending on
+ * $wgDevelopmentWarnings
+ *
+ * @param $msg String: message to send
+ * @param $callerOffset Integer: number of itmes to go back in the backtrace to
+ * find the correct caller (1 = function calling wfWarn, ...)
+ * @param $level Integer: PHP error level; only used when $wgDevelopmentWarnings
+ * is true
+ */
+function wfWarn( $msg, $callerOffset = 1, $level = E_USER_NOTICE ) {
$callers = wfDebugBacktrace();
- if( isset( $callers[2] ) ){
- $callerfunc = $callers[2];
- $callerfile = $callers[1];
+ if( isset( $callers[$callerOffset+1] ) ){
+ $callerfunc = $callers[$callerOffset+1];
+ $callerfile = $callers[$callerOffset];
if( isset( $callerfile['file'] ) && isset( $callerfile['line'] ) ){
$file = $callerfile['file'] . ' at line ' . $callerfile['line'];
} else {
if( isset( $callerfunc['class'] ) )
$func .= $callerfunc['class'] . '::';
$func .= @$callerfunc['function'];
- $msg = "Use of $function is deprecated. Called from $func in $file";
+ $msg .= " [Called from $func in $file]";
+ }
+
+ global $wgDevelopmentWarnings;
+ if ( $wgDevelopmentWarnings ) {
+ trigger_error( $msg, $level );
} else {
- $msg = "Use of $function is deprecated.";
+ wfDebug( "$msg\n" );
}
- wfDebug( "$msg\n" );
}
/**
* that effect (and then sleep for a little while), so it's probably not best
* to use this outside maintenance scripts in its present form.
*
- * @param int $maxLag
+ * @param $maxLag Integer
+ * @param $wiki mixed Wiki identifier accepted by wfGetLB
* @return null
*/
-function wfWaitForSlaves( $maxLag ) {
+function wfWaitForSlaves( $maxLag, $wiki = false ) {
if( $maxLag ) {
- $lb = wfGetLB();
+ $lb = wfGetLB( $wiki );
list( $host, $lag ) = $lb->getMaxLag();
while( $lag > $maxLag ) {
$name = @gethostbyaddr( $host );
flush();
}
+/**
+ * Count down from $n to zero on the terminal, with a one-second pause
+ * between showing each number. For use in command-line scripts.
+ */
+function wfCountDown( $n ) {
+ for ( $i = $n; $i >= 0; $i-- ) {
+ if ( $i != $n ) {
+ echo str_repeat( "\x08", strlen( $i + 1 ) );
+ }
+ echo $i;
+ flush();
+ if ( $i ) {
+ sleep( 1 );
+ }
+ }
+ echo "\n";
+}
+
/** Generate a random 32-character hexadecimal token.
- * @param mixed $salt Some sort of salt, if necessary, to add to random characters before hashing.
+ * @param $salt Mixed: some sort of salt, if necessary, to add to random
+ * characters before hashing.
*/
function wfGenerateToken( $salt = '' ) {
$salt = serialize($salt);
/**
* Replace all invalid characters with -
- * @param mixed $title Filename to process
+ * @param $name Mixed: filename to process
*/
function wfStripIllegalFilenameChars( $name ) {
+ global $wgIllegalFileChars;
$name = wfBaseName( $name );
- $name = preg_replace ( "/[^".Title::legalChars()."]|:/", '-', $name );
+ $name = preg_replace("/[^".Title::legalChars()."]".($wgIllegalFileChars ? "|[".$wgIllegalFileChars."]":"")."/",'-',$name);
return $name;
}
+
+/**
+ * Insert array into another array after the specified *KEY*
+ * @param $array Array: The array.
+ * @param $insert Array: The array to insert.
+ * @param $after Mixed: The key to insert after
+ */
+function wfArrayInsertAfter( $array, $insert, $after ) {
+ // Find the offset of the element to insert after.
+ $keys = array_keys($array);
+ $offsetByKey = array_flip( $keys );
+
+ $offset = $offsetByKey[$after];
+
+ // Insert at the specified offset
+ $before = array_slice( $array, 0, $offset + 1, true );
+ $after = array_slice( $array, $offset + 1, count($array)-$offset, true );
+
+ $output = $before + $insert + $after;
+
+ return $output;
+}
+
+/* Recursively converts the parameter (an object) to an array with the same data */
+function wfObjectToArray( $object, $recursive = true ) {
+ $array = array();
+ foreach ( get_object_vars($object) as $key => $value ) {
+ if ( is_object($value) && $recursive ) {
+ $value = wfObjectToArray( $value );
+ }
+
+ $array[$key] = $value;
+ }
+
+ return $array;
+}
+
+/**
+ * Set PHP's memory limit to the larger of php.ini or $wgMemoryLimit;
+ * @return Integer value memory was set to.
+ */
+
+function wfMemoryLimit () {
+ global $wgMemoryLimit;
+ $memlimit = wfShorthandToInteger( ini_get( "memory_limit" ) );
+ $conflimit = wfShorthandToInteger( $wgMemoryLimit );
+ if( $memlimit != -1 ) {
+ if( $conflimit == -1 ) {
+ wfDebug( "Removing PHP's memory limit\n" );
+ wfSuppressWarnings();
+ ini_set( "memory_limit", $conflimit );
+ wfRestoreWarnings();
+ return $conflimit;
+ } elseif ( $conflimit > $memlimit ) {
+ wfDebug( "Raising PHP's memory limit to $conflimit bytes\n" );
+ wfSuppressWarnings();
+ ini_set( "memory_limit", $conflimit );
+ wfRestoreWarnings();
+ return $conflimit;
+ }
+ }
+ return $memlimit;
+}
+
+/**
+ * Converts shorthand byte notation to integer form
+ * @param $string String
+ * @return Integer
+ */
+function wfShorthandToInteger ( $string = '' ) {
+ $string = trim($string);
+ if( empty($string) ) { return -1; }
+ $last = strtolower($string[strlen($string)-1]);
+ $val = intval($string);
+ switch($last) {
+ case 'g':
+ $val *= 1024;
+ case 'm':
+ $val *= 1024;
+ case 'k':
+ $val *= 1024;
+ }
+
+ return $val;
+}
+
+/* Get the normalised IETF language tag
+ * @param $code String: The language code.
+ * @return $langCode String: The language code which complying with BCP 47 standards.
+ */
+function wfBCP47( $code ) {
+ $codeSegment = explode( '-', $code );
+ foreach ( $codeSegment as $segNo => $seg ) {
+ if ( count( $codeSegment ) > 0 ) {
+ // ISO 3166 country code
+ if ( ( strlen( $seg ) == 2 ) && ( $segNo > 0 ) )
+ $codeBCP[$segNo] = strtoupper( $seg );
+ // ISO 15924 script code
+ else if ( ( strlen( $seg ) == 4 ) && ( $segNo > 0 ) )
+ $codeBCP[$segNo] = ucfirst( $seg );
+ // Use lowercase for other cases
+ else
+ $codeBCP[$segNo] = strtolower( $seg );
+ } else {
+ // Use lowercase for single segment
+ $codeBCP[$segNo] = strtolower( $seg );
+ }
+ }
+ $langCode = implode ( '-' , $codeBCP );
+ return $langCode;
+}