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wp_allowed_protocols ›

Since3.3.0
Deprecatedn/a
wp_allowed_protocols ( No parameters )
See:
Returns:
  • (array) Array of allowed protocols. Defaults to an array containing 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn', 'tel', 'fax', 'xmpp', 'webcal', and 'urn'.
Defined at:
Codex:
Change Log:
  • 4.3.0
  • 4.7.0

Retrieve a list of protocols to allow in HTML attributes.



Source

function wp_allowed_protocols() {
	static $protocols = array();

	if ( empty( $protocols ) ) {
		$protocols = array( 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn', 'tel', 'fax', 'xmpp', 'webcal', 'urn' );
	}

	if ( ! did_action( 'wp_loaded' ) ) {
		/**
		 * Filters the list of protocols allowed in HTML attributes.
		 *
		 * @since 3.0.0
		 *
		 * @param array $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more.
		 */
		$protocols = array_unique( (array) apply_filters( 'kses_allowed_protocols', $protocols ) );
	}

	return $protocols;
}