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- <?php
- /**
- * WordPress implementation for PHP functions missing from older PHP versions.
- *
- * @package PHP
- * @access private
- */
-
- // Added in PHP 5.0
-
- 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 $string;
- }
- }
-
- if (!function_exists('stripos')) {
- function stripos($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_strcut') ):
- function mb_strcut( $str, $start, $length=null, $encoding=null ) {
- return _mb_strcut($str, $start, $length, $encoding);
- }
- endif;
-
- function _mb_strcut( $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 );
- }
-
- ?>
-