wp-includes/rest-api.php:1762Handles getting the best type for a multi-type schema.
$valuemixed$argsarray$paramstringoptional''stringfunction rest_handle_multi_type_schema( $value, $args, $param = '' ) { $allowed_types = array( 'array', 'object', 'string', 'number', 'integer', 'boolean', 'null' ); $invalid_types = array_diff( $args['type'], $allowed_types ); if ( $invalid_types ) { _doing_it_wrong( __FUNCTION__, /* translators: 1: Parameter, 2: List of allowed types. */ wp_sprintf( __( 'The "type" schema keyword for %1$s can only contain the built-in types: %2$l.' ), $param, $allowed_types ), '5.5.0' ); } $best_type = rest_get_best_type_for_value( $value, $args['type'] ); if ( ! $best_type ) { if ( ! $invalid_types ) { return ''; } // Backward compatibility for previous behavior which allowed the value if there was an invalid type used. $best_type = reset( $invalid_types ); } return $best_type;}Introduced in 5.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.