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run code in 300+ PHP versions simultaneously
<?php function f($x) { echo $x; } $funs = array(); for ($i=0; $i<10; $i++) { $funs[] = f($i); } for ($i=0; $i<10; $i++) { $g = $funs[$i]; $g(); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
0123456789 Fatal error: Uncaught Error: Value of type null is not callable in /in/PViAK:14 Stack trace: #0 {main} thrown in /in/PViAK on line 14
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
0123456789 Fatal error: Uncaught Error: Function name must be a string in /in/PViAK:14 Stack trace: #0 {main} thrown in /in/PViAK on line 14
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 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
0123456789 Fatal error: Function name must be a string in /in/PViAK on line 14
Process exited with code 255.
Output for 4.4.5 - 4.4.9
0123456789 Fatal error: Call to undefined function: () in /in/PViAK on line 14
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
0123456789 Fatal error: Call to undefined function: () in /in/PViAK on line 14
Process exited with code 255.
Output for 4.3.0 - 4.3.1
0123456789 Fatal error: Call to undefined function: () in /in/PViAK on line 14

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