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<?php echo preg_replace_callback('~[A-Z]~', function($_) { return 32 + $_[1]; }, '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.');
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
Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 Warning: Undefined array key 1 in /in/imd1N on line 2 32mportant: you are 323232 allowed to use a built-in function that converts the string (or just one character) to lowercase (such as 32o32ower() in .323232, strtolower() in 323232 , ...)! 32ou're allowed to use all other built-in functions, however.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 Notice: Undefined offset: 1 in /in/imd1N on line 2 32mportant: you are 323232 allowed to use a built-in function that converts the string (or just one character) to lowercase (such as 32o32ower() in .323232, strtolower() in 323232 , ...)! 32ou're allowed to use all other built-in functions, however.
Output for 7.3.32 - 7.3.33, 7.4.26
32mportant: you are 323232 allowed to use a built-in function that converts the string (or just one character) to lowercase (such as 32o32ower() in .323232, strtolower() in 323232 , ...)! 32ou're allowed to use all other built-in functions, however.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/imd1N on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/imd1N on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/imd1N on line 2
Process exited with code 255.
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