includes/MWFunction.php

   1 <?php
   2
   3 /**
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  * http://www.gnu.org/copyleft/gpl.html
  18  *
  19  */
  20
  21 class MWFunction {
  22
  23         protected static function cleanCallback( $callback ) {
  24
  25                 if( is_string( $callback ) ) {
  26                         if ( strpos( $callback, '::' ) !== false ) {
  27                                 //PHP 5.1 cannot use call_user_func( 'Class::Method' )
  28                                 //It can only handle only call_user_func( array( 'Class', 'Method' ) )
  29                                 $callback = explode( '::', $callback, 2);
  30                         }
  31                 }
  32
  33                 $callback = (array) $callback;
  34
  35                 if( count( $callback ) == 2 && $callback[0] == 'self' || $callback[0] == 'parent' ) {
  36
  37                         throw new MWException( 'MWFunction cannot call self::method() or parent::method()' );
  38
  39                 }
  40
  41                 // Run autoloader (workaround for call_user_func_array bug: http://bugs.php.net/bug.php?id=51329)
  42                 is_callable( $callback );
  43
  44                 return $callback;
  45         }
  46
  47         public static function call( $callback ) {
  48                 $callback = self::cleanCallback( $callback );
  49
  50                 $args = func_get_args();
  51
  52                 return call_user_func_array( 'call_user_func', $args );
  53
  54         }
  55
  56         public static function callArray( $callback, $argsarams ) {
  57
  58                 $callback = self::cleanCallback( $callback );
  59                 return call_user_func_array( $callback, $argsarams );
  60
  61         }
  62
  63         public static function newObj( $class, $args = array(), $force_fallback = false ) {
  64                 if( !count( $args ) ) {
  65                         return new $class;
  66                 }
  67
  68                 if ( version_compare( PHP_VERSION, '5.1.3', '<' ) || $force_fallback ) {
  69
  70                         //If only MW needed 5.1.3 and up... sigh
  71
  72                         $args = array_values( $args );
  73                         switch ( count( $args ) ) {
  74                                 case 0:
  75                                         return new $class;
  76                                 case 1:
  77                                         return new $class( $args[0] );
  78                                 case 2:
  79                                         return new $class( $args[0], $args[1] );
  80                                 case 3:
  81                                         return new $class( $args[0], $args[1], $args[2] );
  82                                 case 4:
  83                                         return new $class( $args[0], $args[1], $args[2], $args[3] );
  84                                 case 5:
  85                                         return new $class( $args[0], $args[1], $args[2], $args[3], $args[4] );
  86                                 case 6:
  87                                         return new $class( $args[0], $args[1], $args[2], $args[3], $args[4], $args[5] );
  88                                 case 7:
  89                                         return new $class( $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6] );
  90                                 case 8:
  91                                         return new $class(
  92                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
  93                                                 $args[7]
  94                                         );
  95                                 case 9:
  96                                         return new $class(
  97                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
  98                                                 $args[7], $args[8]
  99                                         );
 100                                 case 10:
 101                                         return new $class(
 102                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
 103                                                 $args[7], $args[8], $args[9]
 104                                         );
 105                                 case 11:
 106                                         return new $class(
 107                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
 108                                                 $args[7], $args[8], $args[9], $args[10]
 109                                         );
 110                                 case 12:
 111                                         return new $class(
 112                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
 113                                                 $args[7], $args[8], $args[9], $args[10], $args[11]
 114                                         );
 115                                 case 13:
 116                                         return new $class(
 117                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
 118                                                 $args[7], $args[8], $args[9], $args[10], $args[11], $args[12]
 119                                         );
 120                                 case 14:
 121                                         return new $class(
 122                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
 123                                                 $args[7], $args[8], $args[9], $args[10], $args[11], $args[12], $args[13]
 124                                         );
 125                                 case 15:
 126                                         return new $class(
 127                                                 $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6],
 128                                                 $args[7], $args[8], $args[9], $args[10], $args[11], $args[12], $args[13],
 129                                                 $args[14]
 130                                         );
 131                                 default:
 132                                         throw new MWException( 'Too many arguments to construtor in MWFunction::newObj' );
 133                         }
 134                 }
 135
 136                 else {
 137
 138                         $ref = new ReflectionClass($class);
 139                         return $ref->newInstanceArgs($args);
 140                 }
 141
 142         }
 143
 144 }