wc_print_r() │ WC 3.0

Prints human-readable information about a variable.

Some server environments block some debugging functions. This function provides a safe way to turn an expression into a printable, readable form without calling blocked functions.

Return

String|true|false. False if expression could not be printed. True if the expression was printed.

If $return is true, a string representation will be returned.

Usage

wc_print_r( $expression, $return );

$expression(mixed) (required)

The expression to be printed.

$return(true|false)

Set to true to return the human-readable string.
Default: false

Changelog

wc_print_r() wc print r code ^{WC 8.7.0}

function wc_print_r( $expression, $return = false ) {
	$alternatives = array(
		array(
			'func' => 'print_r',
			'args' => array( $expression, true ),
		),
		array(
			'func' => 'var_export',
			'args' => array( $expression, true ),
		),
		array(
			'func' => 'json_encode',
			'args' => array( $expression ),
		),
		array(
			'func' => 'serialize',
			'args' => array( $expression ),
		),
	);

	$alternatives = apply_filters( 'woocommerce_print_r_alternatives', $alternatives, $expression );

	foreach ( $alternatives as $alternative ) {
		if ( function_exists( $alternative['func'] ) ) {
			$res = $alternative['func']( ...$alternative['args'] );
			if ( $return ) {
				return $res; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
			}

			echo $res; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
			return true;
		}
	}

	return false;
}