mirror of
https://github.com/kremalicious/krtmn.git
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225 lines
7.5 KiB
PHP
Executable File
225 lines
7.5 KiB
PHP
Executable File
<?php
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/*
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* YOURLS
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* Compatibility functions when either missing from older PHP versions or not included by default
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*/
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/**
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* @codeCoverageIgnore
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*/
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/**
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* json_encode for PHP, should someone run a distro without php-json -- see http://askubuntu.com/questions/361424/
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*
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*/
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if( !function_exists( 'json_encode' ) ) {
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function json_encode( $array ) {
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return yourls_array_to_json( $array );
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}
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}
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/**
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* Converts an associative array of arbitrary depth and dimension into JSON representation. Used for compatibility with older PHP builds.
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*
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* @param array $array the array to convert.
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* @return mixed The resulting JSON string, or false if the argument was not an array.
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* @author Andy Rusterholz
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* @link http://php.net/json_encode (see comments)
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*/
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function yourls_array_to_json( $array ){
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if( !is_array( $array ) ){
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return false;
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}
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$associative = count( array_diff( array_keys($array), array_keys( array_keys( $array )) ));
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if( $associative ){
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$construct = array();
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foreach( $array as $key => $value ){
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// We first copy each key/value pair into a staging array,
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// formatting each key and value properly as we go.
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// Format the key:
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if( is_numeric( $key ) ){
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$key = "key_$key";
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}
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$key = '"'.addslashes( $key ).'"';
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// Format the value:
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if( is_array( $value )){
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$value = yourls_array_to_json( $value );
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} else if( !is_numeric( $value ) || is_string( $value ) ){
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$value = '"'.addslashes( $value ).'"';
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}
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// Add to staging array:
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$construct[] = "$key: $value";
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}
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// Then we collapse the staging array into the JSON form:
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$result = "{ " . implode( ", ", $construct ) . " }";
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} else { // If the array is a vector (not associative):
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$construct = array();
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foreach( $array as $value ){
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// Format the value:
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if( is_array( $value )){
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$value = yourls_array_to_json( $value );
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} else if( !is_numeric( $value ) || is_string( $value ) ){
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$value = '"'.addslashes($value).'"';
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}
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// Add to staging array:
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$construct[] = $value;
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}
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// Then we collapse the staging array into the JSON form:
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$result = "[ " . implode( ", ", $construct ) . " ]";
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}
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return $result;
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}
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/**
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* BC Math functions (assuming if one doesn't exist, none does)
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*
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*/
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if ( !function_exists( 'bcdiv' ) ) {
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function bcdiv( $dividend, $divisor ) {
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$quotient = floor( $dividend/$divisor );
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return $quotient;
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}
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function bcmod( $dividend, $modulo ) {
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$remainder = $dividend%$modulo;
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return $remainder;
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}
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function bcmul( $left, $right ) {
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return $left * $right;
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}
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function bcadd( $left, $right ) {
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return $left + $right;
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}
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function bcpow( $base, $power ) {
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return pow( $base, $power );
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}
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}
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/**
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* http_build_url compatibility function
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*
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* @since 1.7.1
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*/
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if ( !function_exists( 'http_build_url' ) ) {
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include YOURLS_INC . '/http_build_url/http_build_url.php';
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}
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/**
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* mb_substr compatibility function. Stolen from WP
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*
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* Only understands UTF-8 and 8bit. All other character sets will be treated as 8bit.
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* For $encoding === UTF-8, the $str input is expected to be a valid UTF-8 byte sequence.
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* The behavior of this function for invalid inputs is undefined.
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*
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* @since 1.7.1
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*/
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if ( ! function_exists( 'mb_substr' ) ) :
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function mb_substr( $str, $start, $length = null, $encoding = null ) {
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return yourls_mb_substr( $str, $start, $length, $encoding );
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}
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endif;
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function yourls_mb_substr( $str, $start, $length = null, $encoding = null ) {
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if ( null === $encoding ) {
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$encoding = 'UTF-8';
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}
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// The solution below works only for UTF-8,
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// so in case of a different charset just use built-in substr()
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if ( ! in_array( $encoding, 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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if ( yourls_supports_pcre_u() ) {
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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( '', $chars );
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}
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$regex = '/(
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[\x00-\x7F] # single-byte sequences 0xxxxxxx
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| [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx
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| \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2
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| [\xE1-\xEC][\x80-\xBF]{2}
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| \xED[\x80-\x9F][\x80-\xBF]
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| [\xEE-\xEF][\x80-\xBF]{2}
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| \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3
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| [\xF1-\xF3][\x80-\xBF]{3}
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| \xF4[\x80-\x8F][\x80-\xBF]{2}
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)/x';
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$chars = array( '' ); // Start with 1 element instead of 0 since the first thing we do is pop
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do {
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// We had some string left over from the last round, but we counted it in that last round.
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array_pop( $chars );
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// Split by UTF-8 character, limit to 1000 characters (last array element will contain the rest of the string)
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$pieces = preg_split( $regex, $str, 1000, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY );
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$chars = array_merge( $chars, $pieces );
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} while ( count( $pieces ) > 1 && $str = array_pop( $pieces ) ); // If there's anything left over, repeat the loop.
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return join( '', array_slice( $chars, $start, $length ) );
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}
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/**
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* mb_strlen compatibility function. Stolen from WP
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*
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* Only understands UTF-8 and 8bit. All other character sets will be treated as 8bit.
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* For $encoding === UTF-8, the $str input is expected to be a valid UTF-8 byte sequence.
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* The behavior of this function for invalid inputs is undefined.
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*
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* @since 1.7.1
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*/
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if ( ! function_exists( 'mb_strlen' ) ) :
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function mb_strlen( $str, $encoding = null ) {
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return yourls_mb_strlen( $str, $encoding );
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}
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endif;
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function yourls_mb_strlen( $str, $encoding = null ) {
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if ( null === $encoding ) {
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$encoding = 'UTF-8';
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}
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// The solution below works only for UTF-8,
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// so in case of a different charset just use built-in strlen()
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if ( ! in_array( $encoding, array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) ) ) {
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return strlen( $str );
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}
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if ( yourls_supports_pcre_u() ) {
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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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return count( $match[0] );
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}
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$regex = '/(?:
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[\x00-\x7F] # single-byte sequences 0xxxxxxx
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| [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx
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| \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2
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| [\xE1-\xEC][\x80-\xBF]{2}
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| \xED[\x80-\x9F][\x80-\xBF]
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| [\xEE-\xEF][\x80-\xBF]{2}
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| \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3
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| [\xF1-\xF3][\x80-\xBF]{3}
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| \xF4[\x80-\x8F][\x80-\xBF]{2}
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)/x';
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$count = 1; // Start at 1 instead of 0 since the first thing we do is decrement
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do {
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// We had some string left over from the last round, but we counted it in that last round.
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$count--;
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// Split by UTF-8 character, limit to 1000 characters (last array element will contain the rest of the string)
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$pieces = preg_split( $regex, $str, 1000 );
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// Increment
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$count += count( $pieces );
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} while ( $str = array_pop( $pieces ) ); // If there's anything left over, repeat the loop.
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// Fencepost: preg_split() always returns one extra item in the array
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return --$count;
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}
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