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run code in 300+ PHP versions simultaneously
<?php $question = "Number?"; function Test() { global $question; static $num = 0; $oldway .= ‘\n‘; echo $question, ++$num; } echo Test(); echo Test();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Undefined constant "‘\n‘" in /in/mjuve:8 Stack trace: #0 /in/mjuve(11): Test() #1 {main} thrown in /in/mjuve on line 8
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
Fatal error: Uncaught Error: Undefined constant '‘\n‘' in /in/mjuve:8 Stack trace: #0 /in/mjuve(11): Test() #1 {main} thrown in /in/mjuve on line 8
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Undefined constant '‘\n‘' in /in/mjuve on line 8
Process exited with code 255.

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