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2666 function wp_json_encode( $data, $options = 0, $depth = 512 ) {
2667 	/*
2668 	 * json_encode() has had extra params added over the years.
2669 	 * $options was added in 5.3, and $depth in 5.5.
2670 	 * We need to make sure we call it with the correct arguments.
2671 	 */
2672 	if ( version_compare( PHP_VERSION, ‘5.5’, ‘>=’ ) ) {
2673 		$args = array( $data, $options, $depth );
2674 	} elseif ( version_compare( PHP_VERSION, ‘5.3’, ‘>=’ ) ) {
2675 		$args = array( $data, $options );
2676 	} else {
2677 		$args = array( $data );
2678 	}
2679 
2680 	$json = call_user_func_array( ‘json_encode’, $args );
2681 
2682 	// If json_encode() was successful, no need to do more sanity checking.
2683 	// … unless we’re in an old version of PHP, and json_encode() returned
2684 	// a string containing ‘null’. Then we need to do more sanity checking.
2685 	if ( false !== $json && ( version_compare( PHP_VERSION, ‘5.5’, ‘>=’ ) || false === strpos( $json, ‘null’ ) ) )  {
2686 		return $json;
2687 	}
2688 
2689 	try {
2690 		$args[0] = _wp_json_sanity_check( $data, $depth );
2691 	} catch ( Exception $e ) {
2692 		return false;
2693 	}
2694 
2695 	return call_user_func_array( ‘json_encode’, $args );
2696 }
2697