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run code in 300+ PHP versions simultaneously
<?php echo strstr('Important: you are NOT allowed to use a built-in function that converts the string (or just one character) to lowercase (such as ToLower() in .NET, strtolower() in PHP , ...)! You\'re allowed to use all other built-in functions, however.', array_combine(range('A', 'Z'), range('a', 'z')));
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 TypeError: strstr(): Argument #2 ($needle) must be of type string, array given in /in/3fN09:2 Stack trace: #0 /in/3fN09(2): strstr('Important: you ...', Array) #1 {main} thrown in /in/3fN09 on line 2
Process exited with code 255.
Output for 5.3.1 - 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
Warning: strstr(): needle is not a string or an integer in /in/3fN09 on line 2
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_combine() in /in/3fN09 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: array_combine() in /in/3fN09 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_combine() in /in/3fN09 on line 2
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295.02 ms | 401 KiB | 459 Q