Wordpress 2.3.2

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

diff --git a/wp-includes/compat.php b/wp-includes/compat.php
new file mode 100644 (file)
index 0000000..a4914b5
--- /dev/null
+++ b/wp-includes/compat.php
@@ -0,0 +1,150 @@
+<?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()
+ *
+ * @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)
+ */
+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 $output;
+               }
+}
+
+if (!function_exists('http_build_query')) {
+       function http_build_query($data, $prefix=null, $sep=null) {
+               return _http_build_query($data, $prefix, $sep);
+       }
+}
+
+// from php.net (modified by Mark Jaquith to behave like the native PHP5 function)
+function _http_build_query($data, $prefix=null, $sep=null, $key='', $urlencode=true) {
+       $ret = array();
+
+       foreach ( (array) $data as $k => $v ) {
+               if ( $urlencode)
+                       $k = urlencode($k);
+               if ( is_int($k) && $prefix != null )
+                       $k = $prefix.$k;
+               if ( !empty($key) )
+                       $k = $key . '%5B' . $k . '%5D';
+               if ( $v === NULL )
+                       continue;
+               elseif ( $v === FALSE )
+                       $v = '0';
+
+               if ( is_array($v) || is_object($v) )
+                       array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode));
+               elseif ( $urlencode )
+                       array_push($ret, $k.'='.urlencode($v));
+               else
+                       array_push($ret, $k.'='.$v);
+       }
+
+       if ( NULL === $sep )
+               $sep = ini_get('arg_separator.output');
+
+       return implode($sep, $ret);
+}
+
+if ( !function_exists('_') ) {
+       function _($string) {
+               return $string;
+       }
+}
+
+// Added in PHP 5.0
+if (!function_exists('stripos')) {
+       function stripos($haystack, $needle, $offset = 0) {
+               return strpos(strtolower($haystack), strtolower($needle), $offset);
+       }
+}
+
+?>