138 lines
5.2 KiB
PHP
138 lines
5.2 KiB
PHP
<?php
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/**
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* LiteSpeed PHP compatibility functions for lower PHP version
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*
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* @since 1.1.3
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* @package LiteSpeed_Cache
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* @subpackage LiteSpeed_Cache/lib
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* @author LiteSpeed Technologies <info@litespeedtech.com>
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*/
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defined( 'WPINC' ) || exit ;
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/**
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* http_build_url() compatibility
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*
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*/
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if ( ! function_exists('http_build_url') ) {
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if ( ! defined( 'HTTP_URL_REPLACE' ) ) define('HTTP_URL_REPLACE', 1); // Replace every part of the first URL when there's one of the second URL
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if ( ! defined( 'HTTP_URL_JOIN_PATH' ) ) define('HTTP_URL_JOIN_PATH', 2); // Join relative paths
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if ( ! defined( 'HTTP_URL_JOIN_QUERY' ) ) define('HTTP_URL_JOIN_QUERY', 4); // Join query strings
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if ( ! defined( 'HTTP_URL_STRIP_USER' ) ) define('HTTP_URL_STRIP_USER', 8); // Strip any user authentication information
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if ( ! defined( 'HTTP_URL_STRIP_PASS' ) ) define('HTTP_URL_STRIP_PASS', 16); // Strip any password authentication information
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if ( ! defined( 'HTTP_URL_STRIP_AUTH' ) ) define('HTTP_URL_STRIP_AUTH', 32); // Strip any authentication information
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if ( ! defined( 'HTTP_URL_STRIP_PORT' ) ) define('HTTP_URL_STRIP_PORT', 64); // Strip explicit port numbers
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if ( ! defined( 'HTTP_URL_STRIP_PATH' ) ) define('HTTP_URL_STRIP_PATH', 128); // Strip complete path
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if ( ! defined( 'HTTP_URL_STRIP_QUERY' ) ) define('HTTP_URL_STRIP_QUERY', 256); // Strip query string
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if ( ! defined( 'HTTP_URL_STRIP_FRAGMENT' ) ) define('HTTP_URL_STRIP_FRAGMENT', 512); // Strip any fragments (#identifier)
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if ( ! defined( 'HTTP_URL_STRIP_ALL' ) ) define('HTTP_URL_STRIP_ALL', 1024); // Strip anything but scheme and host
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// Build an URL
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// The parts of the second URL will be merged into the first according to the flags argument.
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//
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// @param mixed (Part(s) of) an URL in form of a string or associative array like parse_url() returns
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// @param mixed Same as the first argument
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// @param int A bitmask of binary or'ed HTTP_URL constants (Optional)HTTP_URL_REPLACE is the default
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// @param array If set, it will be filled with the parts of the composed url like parse_url() would return
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function http_build_url($url, $parts = array(), $flags = HTTP_URL_REPLACE, &$new_url = false)
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{
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$keys = array('user','pass','port','path','query','fragment');
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// HTTP_URL_STRIP_ALL becomes all the HTTP_URL_STRIP_Xs
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if ( $flags & HTTP_URL_STRIP_ALL ) {
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$flags |= HTTP_URL_STRIP_USER;
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$flags |= HTTP_URL_STRIP_PASS;
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$flags |= HTTP_URL_STRIP_PORT;
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$flags |= HTTP_URL_STRIP_PATH;
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$flags |= HTTP_URL_STRIP_QUERY;
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$flags |= HTTP_URL_STRIP_FRAGMENT;
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}
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// HTTP_URL_STRIP_AUTH becomes HTTP_URL_STRIP_USER and HTTP_URL_STRIP_PASS
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else if ( $flags & HTTP_URL_STRIP_AUTH ) {
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$flags |= HTTP_URL_STRIP_USER;
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$flags |= HTTP_URL_STRIP_PASS;
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}
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// Parse the original URL
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// - Suggestion by Sayed Ahad Abbas
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// In case you send a parse_url array as input
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$parse_url = !is_array($url) ? parse_url($url) : $url;
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// Scheme and Host are always replaced
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if ( isset($parts['scheme']) ) {
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$parse_url['scheme'] = $parts['scheme'];
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}
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if ( isset($parts['host']) ) {
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$parse_url['host'] = $parts['host'];
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}
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// (If applicable) Replace the original URL with it's new parts
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if ( $flags & HTTP_URL_REPLACE ) {
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foreach ($keys as $key) {
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if ( isset($parts[$key]) ) {
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$parse_url[$key] = $parts[$key];
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}
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}
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}
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else {
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// Join the original URL path with the new path
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if (isset($parts['path']) && ($flags & HTTP_URL_JOIN_PATH)) {
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if ( isset($parse_url['path']) ) {
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$parse_url['path'] = rtrim(str_replace(basename($parse_url['path']), '', $parse_url['path']), '/') . '/' . ltrim($parts['path'], '/');
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}
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else {
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$parse_url['path'] = $parts['path'];
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}
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}
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// Join the original query string with the new query string
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if ( isset($parts['query']) && ($flags & HTTP_URL_JOIN_QUERY) ) {
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if ( isset($parse_url['query']) ) {
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$parse_url['query'] .= '&' . $parts['query'];
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}
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else {
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$parse_url['query'] = $parts['query'];
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}
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}
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}
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// Strips all the applicable sections of the URL
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// Note: Scheme and Host are never stripped
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foreach ($keys as $key) {
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if ( $flags & (int)constant('HTTP_URL_STRIP_' . strtoupper($key)) ) {
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unset($parse_url[$key]);
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}
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}
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$new_url = $parse_url;
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return
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(isset($parse_url['scheme']) ? $parse_url['scheme'] . '://' : '')
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.(isset($parse_url['user']) ? $parse_url['user'] . (isset($parse_url['pass']) ? ':' . $parse_url['pass'] : '') .'@' : '')
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.(isset($parse_url['host']) ? $parse_url['host'] : '')
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.(isset($parse_url['port']) ? ':' . $parse_url['port'] : '')
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.(isset($parse_url['path']) ? $parse_url['path'] : '')
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.(isset($parse_url['query']) ? '?' . $parse_url['query'] : '')
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.(isset($parse_url['fragment']) ? '#' . $parse_url['fragment'] : '')
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;
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}
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}
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if ( ! function_exists( 'array_key_first' ) ) {
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function array_key_first( array $arr ) {
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foreach( $arr as $k => $unused ) {
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return $k ;
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}
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return NULL ;
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}
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}
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if ( ! function_exists( 'array_column' ) ) {
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function array_column( $array, $column_name )
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{
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return array_map( function( $element ) use( $column_name ) { return $element[ $column_name ]; }, $array );
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}
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}
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