wp-includes/shortcodes.php:613Retrieves all attributes from the shortcodes tag.
$textstringarrayfunction shortcode_parse_atts( $text ) { $atts = array(); $pattern = get_shortcode_atts_regex(); $text = preg_replace( "/[\x{00a0}\x{200b}]+/u", ' ', $text ); if ( preg_match_all( $pattern, $text, $match, PREG_SET_ORDER ) ) { foreach ( $match as $m ) { if ( ! empty( $m[1] ) ) { $atts[ strtolower( $m[1] ) ] = stripcslashes( $m[2] ); } elseif ( ! empty( $m[3] ) ) { $atts[ strtolower( $m[3] ) ] = stripcslashes( $m[4] ); } elseif ( ! empty( $m[5] ) ) { $atts[ strtolower( $m[5] ) ] = stripcslashes( $m[6] ); } elseif ( isset( $m[7] ) && strlen( $m[7] ) ) { $atts[] = stripcslashes( $m[7] ); } elseif ( isset( $m[8] ) && strlen( $m[8] ) ) { $atts[] = stripcslashes( $m[8] ); } elseif ( isset( $m[9] ) ) { $atts[] = stripcslashes( $m[9] ); } } // Reject any unclosed HTML elements. foreach ( $atts as &$value ) { if ( str_contains( $value, '<' ) ) { if ( 1 !== preg_match( '/^[^<]*+(?:<[^>]*+>[^<]*+)*+$/', $value ) ) { $value = ''; } } } } return $atts;}Introduced in 2.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/shortcodes.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.