<?php
+/**
+ * WordPress implementation for PHP functions either missing from older PHP versions or not included by default.
+ *
+ * @package PHP
+ * @access private
+ */
-/* Functions missing from older PHP versions */
-
-
-/* Added in PHP 4.2.0 */
-
-if (!function_exists('floatval')) {
- function floatval($string) {
- return ((float) $string);
+// If gettext isn't available
+if ( !function_exists('_') ) {
+ function _($string) {
+ return $string;
}
}
-if (!function_exists('is_a')) {
- function is_a($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('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( '', $chars );
}
-if (!function_exists('ob_clean')) {
- function ob_clean() {
- // by Aidan Lister <aidan@php.net>
- if (@ob_end_clean()) {
- return ob_start();
- }
- return false;
- }
+if ( !function_exists('hash_hmac') ):
+function hash_hmac($algo, $data, $key, $raw_output = false) {
+ return _hash_hmac($algo, $data, $key, $raw_output);
}
+endif;
+function _hash_hmac($algo, $data, $key, $raw_output = false) {
+ $packs = array('md5' => 'H32', 'sha1' => 'H40');
-/* Added in PHP 4.3.0 */
+ if ( !isset($packs[$algo]) )
+ return false;
-function printr($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;
-}
+ $pack = $packs[$algo];
-/* 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('', $file);
- }
-}
+ if (strlen($key) > 64)
+ $key = pack($pack, $algo($key));
-if (!defined('CASE_LOWER')) {
- define('CASE_LOWER', 0);
-}
+ $key = str_pad($key, 64, chr(0));
+
+ $ipad = (substr($key, 0, 64) ^ str_repeat(chr(0x36), 64));
+ $opad = (substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64));
-if (!defined('CASE_UPPER')) {
- define('CASE_UPPER', 1);
+ $hmac = $algo($opad . pack($pack, $algo($ipad . $data)));
+
+ if ( $raw_output )
+ return pack( $pack, $hmac );
+ return $hmac;
}
+if ( !function_exists('json_encode') ) {
+ function json_encode( $string ) {
+ global $wp_json;
-/**
- * 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 $output;
+ if ( !is_a($wp_json, 'Services_JSON') ) {
+ require_once( ABSPATH . WPINC . '/class-json.php' );
+ $wp_json = new Services_JSON();
}
-}
-if (!function_exists('http_build_query')) {
- function http_build_query($data, $prefix=null, $sep=null) {
- return _http_build_query($data, $prefix, $sep);
+ return $wp_json->encodeUnsafe( $string );
}
}
-// from php.net (modified by Mark Jaquith to behave like the native PHP5 function)
-function _http_build_query($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');
+if ( !function_exists('json_decode') ) {
+ function json_decode( $string, $assoc_array = false ) {
+ global $wp_json;
- return implode($sep, $ret);
-}
+ if ( !is_a($wp_json, 'Services_JSON') ) {
+ require_once( ABSPATH . WPINC . '/class-json.php' );
+ $wp_json = new Services_JSON();
+ }
-if ( !function_exists('_') ) {
- function _($string) {
- return $string;
+ $res = $wp_json->decode( $string );
+ if ( $assoc_array )
+ $res = _json_decode_object_helper( $res );
+ return $res;
}
-}
-
-// Added in PHP 5.0
-if (!function_exists('stripos')) {
- function stripos($haystack, $needle, $offset = 0) {
- return strpos(strtolower($haystack), strtolower($needle), $offset);
+ function _json_decode_object_helper($data) {
+ if ( is_object($data) )
+ $data = get_object_vars($data);
+ return is_array($data) ? array_map(__FUNCTION__, $data) : $data;
}
}
-
-?>
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff