3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($text = "Bar") { echo "\r\n$text"; } // Pass the function to the array. Do not use () here. $array = array( 'func' => "foo" ); // And call it. $array['func'](); // Outputs: "Bar" $array['func']("Foo Bar"); // Outputs: "Foo Bar"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Bar Foo Bar
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/18ISI on line 14
Process exited with code 255.
preferences:
266.34 ms | 401 KiB | 460 Q