From 5d24ad601e5eff0a9abe7e8671b9144ee2124d3c Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@users.mediawiki.org>
Date: Mon, 11 Sep 2006 12:55:26 +0000
Subject: [PATCH] * (bug 6777) Remove some PHP 4 compat cruft

---
 RELEASE-NOTES                |  1 +
 includes/GlobalFunctions.php | 56 ++++++------------------------------
 2 files changed, 9 insertions(+), 48 deletions(-)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 4007b7d8cd..42eeb15c44 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -193,6 +193,7 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
 * (bug 7279) Use wfBaseName in place of basename() in more places
 * Clear newtalk marker on diff links with explicit current revision number
 * (bug 7064) Replace hard-coded empty message checks with wfEmptyMsg calls
+* (bug 6777) Remove some PHP 4 compat cruft
 
 
 == Languages updated ==
diff --git a/includes/GlobalFunctions.php b/includes/GlobalFunctions.php
index fcbe817ec3..3079fba7af 100644
--- a/includes/GlobalFunctions.php
+++ b/includes/GlobalFunctions.php
@@ -33,9 +33,10 @@ require_once( 'XmlFunctions.php' );
 
 /**
  * Compatibility functions
- * PHP <4.3.x is not actively supported; 4.1.x and 4.2.x might or might not work.
- * <4.1.x will not work, as we use a number of features introduced in 4.1.0
- * such as the new autoglobals.
+ *
+ * We more or less support PHP 5.0.x and up.
+ * Re-implementations of newer functions or functions in non-standard
+ * PHP extensions may be included here.
  */
 if( !function_exists('iconv') ) {
 	# iconv support is not in the default configuration and so may not be present.
@@ -49,22 +50,6 @@ if( !function_exists('iconv') ) {
 	}
 }
 
-if( !function_exists('file_get_contents') ) {
-	# Exists in PHP 4.3.0+
-	function file_get_contents( $filename ) {
-		return implode( '', file( $filename ) );
-	}
-}
-
-if( !function_exists('is_a') ) {
-	# Exists in PHP 4.2.0+
-	function is_a( $object, $class_name ) {
-		return
-			(strcasecmp( get_class( $object ), $class_name ) == 0) ||
-			 is_subclass_of( $object, $class_name );
-	}
-}
-
 # UTF-8 substr function based on a PHP manual comment
 if ( !function_exists( 'mb_substr' ) ) {
 	function mb_substr( $str, $start ) {
@@ -79,17 +64,6 @@ if ( !function_exists( 'mb_substr' ) ) {
 	}
 }
 
-if( !function_exists( 'floatval' ) ) {
-	/**
-	 * First defined in PHP 4.2.0
-	 * @param mixed $var;
-	 * @return float
-	 */
-	function floatval( $var ) {
-		return (float)$var;
-	}
-}
-
 if ( !function_exists( 'array_diff_key' ) ) {
 	/**
 	 * Exists in PHP 5.1.0+
@@ -109,39 +83,25 @@ if ( !function_exists( 'array_diff_key' ) ) {
 
 
 /**
- * Wrapper for clone() for PHP 4, for the moment.
+ * Wrapper for clone(), for compatibility with PHP4-friendly extensions.
  * PHP 5 won't let you declare a 'clone' function, even conditionally,
  * so it has to be a wrapper with a different name.
  */
 function wfClone( $object ) {
-	// WARNING: clone() is not a function in PHP 5, so function_exists fails.
-	if( version_compare( PHP_VERSION, '5.0' ) < 0 ) {
-		return $object;
-	} else {
-		return clone( $object );
-	}
+	return clone( $object );
 }
 
 /**
  * Where as we got a random seed
- * @var bool $wgTotalViews
  */
 $wgRandomSeeded = false;
 
 /**
  * Seed Mersenne Twister
- * Only necessary in PHP < 4.2.0
- *
- * @return bool
+ * No-op for compatibility; only necessary in PHP < 4.2.0
  */
 function wfSeedRandom() {
-	global $wgRandomSeeded;
-
-	if ( ! $wgRandomSeeded && version_compare( phpversion(), '4.2.0' ) < 0 ) {
-		$seed = hexdec(substr(md5(microtime()),-8)) & 0x7fffffff;
-		mt_srand( $seed );
-		$wgRandomSeeded = true;
-	}
+	/* No-op */
 }
 
 /**
-- 
2.20.1