}
}
+/**
+ * Like array_filter with ARRAY_FILTER_USE_BOTH, but works pre-5.6.
+ *
+ * @param array $arr
+ * @param callable $callback Will be called with the array value and key (in that order) and
+ * should return a bool which will determine whether the array element is kept.
+ * @return array
+ */
+function wfArrayFilter( array $arr, callable $callback ) {
+ if ( defined( 'ARRAY_FILTER_USE_BOTH' ) ) {
+ return array_filter( $arr, $callback, ARRAY_FILTER_USE_BOTH );
+ }
+ $filteredKeys = array_filter( array_keys( $arr ), function ( $key ) use ( $arr, $callback ) {
+ return call_user_func( $callback, $arr[$key], $key );
+ } );
+ return array_intersect_key( $arr, array_fill_keys( $filteredKeys, true ) );
+}
+
+/**
+ * Like array_filter with ARRAY_FILTER_USE_KEY, but works pre-5.6.
+ *
+ * @param array $arr
+ * @param callable $callback Will be called with the array key and should return a bool which
+ * will determine whether the array element is kept.
+ * @return array
+ */
+function wfArrayFilterByKey( array $arr, callable $callback ) {
+ return wfArrayFilter( $arr, function ( $val, $key ) use ( $callback ) {
+ return call_user_func( $callback, $key );
+ } );
+}
+
/**
* Appends to second array if $value differs from that in $default
*
* 1) Does not raise warnings on bad URLs (just returns false).
* 2) Handles protocols that don't use :// (e.g., mailto: and news:, as well as
* protocol-relative URLs) correctly.
- * 3) Adds a "delimiter" element to the array, either '://', ':' or '//' (see (2)).
+ * 3) Adds a "delimiter" element to the array (see (2)).
+ * 4) Verifies that the protocol is on the $wgUrlProtocols whitelist.
+ * 5) Rejects some invalid URLs that parse_url doesn't, e.g. the empty string or URLs starting with
+ * a line feed character.
*
* @param string $url A URL to parse
- * @return string[]|bool Bits of the URL in an associative array, per PHP docs, false on failure
+ * @return string[]|bool Bits of the URL in an associative array, or false on failure.
+ * Possible fields:
+ * - scheme: URI scheme (protocol), e.g. 'http', 'mailto'. Lowercase, always present, but can
+ * be an empty string for protocol-relative URLs.
+ * - delimiter: either '://', ':' or '//'. Always present.
+ * - host: domain name / IP. Always present, but could be an empty string, e.g. for file: URLs.
+ * - user: user name, e.g. for HTTP Basic auth URLs such as http://user:pass@example.com/
+ * Missing when there is no username.
+ * - pass: password, same as above.
+ * - path: path including the leading /. Will be missing when empty (e.g. 'http://example.com')
+ * - query: query string (as a string; see wfCgiToArray() for parsing it), can be missing.
+ * - fragment: the part after #, can be missing.
*/
function wfParseUrl( $url ) {
global $wgUrlProtocols; // Allow all protocols defined in DefaultSettings/LocalSettings.php
/**
* Get the cache object used by the parser cache
*
+ * @deprecated since 1.30, use MediaWikiServices::getParserCache()->getCacheStorage()
* @return BagOStuff
*/
function wfGetParserCacheStorage() {
* @since 1.25
*/
function wfIsInfinity( $str ) {
+ // These are hardcoded elsewhere in MediaWiki (e.g. mediawiki.special.block.js).
$infinityValues = [ 'infinite', 'indefinite', 'infinity', 'never' ];
return in_array( $str, $infinityValues );
}