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rest_handle_multi_type_schema() WP 5.5.0

Handles getting the best type for a multi-type schema.

This is a wrapper for rest_get_best_type_for_value() that handles backward compatibility for schemas that use invalid types.

No Hooks.

Return

String. Nothing.

Usage

rest_handle_multi_type_schema( $value, $args, $param );
$value(mixed) (required)
The value to check.
$args(array) (required)
The schema array to use.
$param(string)
The parameter name, used in error messages.

Changelog

Since 5.5.0 Introduced.

Code of rest_handle_multi_type_schema() WP 5.7.2

<?php
function 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;
}