3v4l.org

run code in 300+ PHP versions simultaneously

@ 2014-08-08T19:53:40Z

<?php
set_error_handler( 
	function($error_num, $message, $file_name, $line_num) {
		$trace = debug_backtrace();
		foreach($trace as $trace_row){
			array_walk_recursive($trace, function(&$val, $index){
				$max_length = 100;
						
				//The strlen(...) function has to be passed a string value, so convert objects to their respective class names - otherwise an error will be thrown
				if ( is_object($val) ) {
					$val = get_class($val);
				}
				$length = strlen($val);	
				
				if( $length > $max_length ){
					$val = substr($val, 0, $max_length) . "...(original length $length)";
				}
			});
		}

		return true;
	}	 
);

class A{
	function do_stuff(&$b) {
		var_dump('Before in function:', $b);
		$defined = 0;
		#trigger_error("If I fixed the undefined variable but enabled this line instead, it will also turn b from an object into a string! So user-triggered notices bork it as well.");
		$x = $undefined || $defined ? 14 : 0;
		var_dump('After in function:', $b);
	}
}

class B{}

$a = new A();
$b = new B();

$a->do_stuff($b);

var_dump('After function:', $b);
?>

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(19) "Before in function:" object(B)#3 (0) { } string(18) "After in function:" object(B)#3 (0) { } string(15) "After function:" object(B)#3 (0) { }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33: string(19) "Before in function:" object(B)#3 (0) { } string(18) "After in function:" string(1) "B" string(15) "After function:" string(1) "B"
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/FUqWS on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/FUqWS on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/FUqWS on line 3
Process exited with code 255.

preferences:dark modelive preview

255.95 ms | 401 KiB | 356 Q