WP_MatchesMapRegex::callback( array $matches )

preg_replace_callback hook

Parameters

$matches: (array) (Required) preg_replace regexp matches

Return

(string)

Source

File: wp-includes/class-wp-matchesmapregex.php

public function callback( $matches ) {
		$index = (int) substr( $matches[0], 9, -1 );
		return ( isset( $this->_matches[ $index ] ) ? urlencode( $this->_matches[ $index ] ) : '' );
	}

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_matchesmapregex/callback