Wordpress 2.8-scripts

[autoinstalls/wordpress.git] / wp-includes / compat.php

diff --git a/wp-includes/compat.php b/wp-includes/compat.php
index a4914b5602a19c3e7e5aa8c790072166b9b25f53..0043865000503fe8465d007c325a427ac3e1094d 100644 (file)
--- a/wp-includes/compat.php
+++ b/wp-includes/compat.php
@@ -1,102 +1,12 @@
 <?php
 <?php

-
-/* Functions missing from older PHP versions */
-
-
-/* Added in PHP 4.2.0 */
-
-if (!function_exists('floatval')) {
-       function floatval($string) {
-               return ((float) $string);
-       }
-}
-
-if (!function_exists('is_a')) {
-       function is_a($object, $class) {
-               // by Aidan Lister <aidan@php.net>
-               if (get_class($object) == strtolower($class)) {
-                       return true;
-               } else {
-                       return is_subclass_of($object, $class);
-               }
-       }
-}
-
-if (!function_exists('ob_clean')) {
-       function ob_clean() {
-               // by Aidan Lister <aidan@php.net>
-               if (@ob_end_clean()) {
-                       return ob_start();
-               }
-               return false;
-       }
-}
-
-
-/* Added in PHP 4.3.0 */
-
-function printr($var, $do_not_echo = false) {
-       // from php.net/print_r user contributed notes
-       ob_start();
-       print_r($var);
-       $code =  htmlentities(ob_get_contents());
-       ob_clean();
-       if (!$do_not_echo) {
-               echo "<pre>$code</pre>";
-       }
-       ob_end_clean();
-       return $code;
-}
-
-/* compatibility with PHP versions older than 4.3 */
-if ( !function_exists('file_get_contents') ) {
-       function file_get_contents( $file ) {
-               $file = file($file);
-               return !$file ? false : implode('', $file);
-       }
-}
-
-if (!defined('CASE_LOWER')) {
-               define('CASE_LOWER', 0);
-}
-
-if (!defined('CASE_UPPER')) {
-               define('CASE_UPPER', 1);
-}
-
-

 /**
 /**

- * Replace array_change_key_case()
+ * WordPress implementation for PHP functions missing from older PHP versions.

  *
  *

- * @category    PHP
- * @package     PHP_Compat
- * @link        http://php.net/function.array_change_key_case
- * @author      Stephan Schmidt <schst@php.net>
- * @author      Aidan Lister <aidan@php.net>
- * @version     $Revision: 6070 $
- * @since       PHP 4.2.0
- * @require     PHP 4.0.0 (user_error)
+ * @package PHP
+ * @access private

  */
  */

-if (!function_exists('array_change_key_case')) {
-               function array_change_key_case($input, $case = CASE_LOWER)
-               {
-                               if (!is_array($input)) {
-                                               user_error('array_change_key_case(): The argument should be an array',
-                                                               E_USER_WARNING);
-                                               return false;
-                               }
-
-                               $output   = array ();
-                               $keys     = array_keys($input);
-                               $casefunc = ($case == CASE_LOWER) ? 'strtolower' : 'strtoupper';
-
-                               foreach ($keys as $key) {
-                                               $output[$casefunc($key)] = $input[$key];
-                               }
-
-                               return $output;
-               }
-}
+
+// Added in PHP 5.0

 
 if (!function_exists('http_build_query')) {
        function http_build_query($data, $prefix=null, $sep=null) {
 
 if (!function_exists('http_build_query')) {
        function http_build_query($data, $prefix=null, $sep=null) {


@@ -140,11 +50,69 @@ if ( !function_exists('_') ) {
        }
 }
 
        }
 }
 

-// Added in PHP 5.0

 if (!function_exists('stripos')) {
        function stripos($haystack, $needle, $offset = 0) {
                return strpos(strtolower($haystack), strtolower($needle), $offset);
        }
 }
 
 if (!function_exists('stripos')) {
        function stripos($haystack, $needle, $offset = 0) {
                return strpos(strtolower($haystack), strtolower($needle), $offset);
        }
 }
 

+if ( ! function_exists('hash_hmac') ):
+function hash_hmac($algo, $data, $key, $raw_output = false) {
+       $packs = array('md5' => 'H32', 'sha1' => 'H40');
+
+       if ( !isset($packs[$algo]) )
+               return false;
+
+       $pack = $packs[$algo];
+
+       if (strlen($key) > 64)
+               $key = pack($pack, $algo($key));
+       else if (strlen($key) < 64)
+               $key = str_pad($key, 64, chr(0));
+
+       $ipad = (substr($key, 0, 64) ^ str_repeat(chr(0x36), 64));
+       $opad = (substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64));
+
+       return $algo($opad . pack($pack, $algo($ipad . $data)));
+}
+endif;
+
+if ( ! function_exists('mb_substr') ):
+       function mb_substr( $str, $start, $length=null, $encoding=null ) {
+               return _mb_substr($str, $start, $length, $encoding);
+       }
+endif;
+
+function _mb_substr( $str, $start, $length=null, $encoding=null ) {
+       // the solution below, works only for utf-8, so in case of a different
+       // charset, just use built-in substr
+       $charset = get_option( 'blog_charset' );
+       if ( !in_array( $charset, array('utf8', 'utf-8', 'UTF8', 'UTF-8') ) ) {
+               return is_null( $length )? substr( $str, $start ) : substr( $str, $start, $length);
+       }
+       // use the regex unicode support to separate the UTF-8 characters into an array
+       preg_match_all( '/./us', $str, $match );
+       $chars = is_null( $length )? array_slice( $match[0], $start ) : array_slice( $match[0], $start, $length );
+       return implode( '', $chars );
+}
+
+if ( !function_exists( 'htmlspecialchars_decode' ) ) {
+       // Added in PHP 5.1.0
+       // Error checks from PEAR::PHP_Compat
+       function htmlspecialchars_decode( $string, $quote_style = ENT_COMPAT )
+       {
+               if ( !is_scalar( $string ) ) {
+                       trigger_error( 'htmlspecialchars_decode() expects parameter 1 to be string, ' . gettype( $string ) . ' given', E_USER_WARNING );
+                       return;
+               }
+
+               if ( !is_int( $quote_style ) && $quote_style !== null ) {
+                       trigger_error( 'htmlspecialchars_decode() expects parameter 2 to be integer, ' . gettype( $quote_style ) . ' given', E_USER_WARNING );
+                       return;
+               }
+
+               return wp_specialchars_decode( $string, $quote_style );
+       }
+}
+

 ?>
 ?>