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run code in 300+ PHP versions simultaneously
<?php function foo($text = "Bar") { echo $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 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "foo" in /in/Uhari:9 Stack trace: #0 {main} thrown in /in/Uhari on line 9
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant foo - assumed 'foo' (this will throw an Error in a future version of PHP) in /in/Uhari on line 9 BarFoo Bar
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Notice: Use of undefined constant foo - assumed 'foo' in /in/Uhari on line 9 BarFoo 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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Notice: Use of undefined constant foo - assumed 'foo' in /in/Uhari on line 10 BarFoo Bar
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/Uhari on line 14
Process exited with code 255.
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