100 lines
2.6 KiB
PHP
100 lines
2.6 KiB
PHP
<?php
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/**
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* WordPress implementation for PHP functions missing from older PHP versions.
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*
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* @package PHP
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* @access private
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*/
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// Added in PHP 5.0
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if (!function_exists('http_build_query')) {
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function http_build_query($data, $prefix=null, $sep=null) {
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return _http_build_query($data, $prefix, $sep);
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}
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}
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// from php.net (modified by Mark Jaquith to behave like the native PHP5 function)
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function _http_build_query($data, $prefix=null, $sep=null, $key='', $urlencode=true) {
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$ret = array();
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foreach ( (array) $data as $k => $v ) {
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if ( $urlencode)
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$k = urlencode($k);
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if ( is_int($k) && $prefix != null )
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$k = $prefix.$k;
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if ( !empty($key) )
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$k = $key . '%5B' . $k . '%5D';
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if ( $v === NULL )
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continue;
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elseif ( $v === FALSE )
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$v = '0';
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if ( is_array($v) || is_object($v) )
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array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode));
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elseif ( $urlencode )
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array_push($ret, $k.'='.urlencode($v));
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else
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array_push($ret, $k.'='.$v);
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}
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if ( NULL === $sep )
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$sep = ini_get('arg_separator.output');
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return implode($sep, $ret);
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}
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if ( !function_exists('_') ) {
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function _($string) {
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return $string;
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}
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}
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if (!function_exists('stripos')) {
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function stripos($haystack, $needle, $offset = 0) {
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return strpos(strtolower($haystack), strtolower($needle), $offset);
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}
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}
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if ( ! function_exists('hash_hmac') ):
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function hash_hmac($algo, $data, $key, $raw_output = false) {
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$packs = array('md5' => 'H32', 'sha1' => 'H40');
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if ( !isset($packs[$algo]) )
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return false;
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$pack = $packs[$algo];
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if (strlen($key) > 64)
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$key = pack($pack, $algo($key));
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else if (strlen($key) < 64)
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$key = str_pad($key, 64, chr(0));
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$ipad = (substr($key, 0, 64) ^ str_repeat(chr(0x36), 64));
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$opad = (substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64));
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return $algo($opad . pack($pack, $algo($ipad . $data)));
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}
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endif;
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if ( ! function_exists('mb_strcut') ):
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function mb_strcut( $str, $start, $length=null, $encoding=null ) {
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return _mb_strcut($str, $start, $length, $encoding);
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}
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endif;
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function _mb_strcut( $str, $start, $length=null, $encoding=null ) {
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// the solution below, works only for utf-8, so in case of a different
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// charset, just use built-in substr
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$charset = get_option( 'blog_charset' );
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if ( !in_array( $charset, array('utf8', 'utf-8', 'UTF8', 'UTF-8') ) ) {
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return is_null( $length )? substr( $str, $start ) : substr( $str, $start, $length);
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}
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// use the regex unicode support to separate the UTF-8 characters into an array
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preg_match_all( '/./us', $str, $match );
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$chars = is_null( $length )? array_slice( $match[0], $start ) : array_slice( $match[0], $start, $length );
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return implode( '', $chars );
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}
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?>
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