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run code in 300+ PHP versions simultaneously
<?php echo Module::work('hello world.'), "\n"; echo MyModule::work('hello world.'); abstract class Module { private static $mask = '[[[%s]]]'; public static function work($it) { return preg_replace_callback('~\w+~', array(self, 'static::replace'), $it); } private static function replace($matches) { return sprintf(static::$mask, $matches[0]); } } abstract class MyModule extends Module { protected static $mask = '{{{%s}}}'; }
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 "self" in /in/B28CG:10 Stack trace: #0 /in/B28CG(2): Module::work('hello world.') #1 {main} thrown in /in/B28CG on line 10
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant self - assumed 'self' (this will throw an Error in a future version of PHP) in /in/B28CG on line 10 [[[hello]]] [[[world]]]. Warning: Use of undefined constant self - assumed 'self' (this will throw an Error in a future version of PHP) in /in/B28CG on line 10 Warning: preg_replace_callback(): Requires argument 2, 'self::static::replace', to be a valid callback in /in/B28CG on line 10 hello world.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Notice: Use of undefined constant self - assumed 'self' in /in/B28CG on line 10 [[[hello]]] [[[world]]]. Notice: Use of undefined constant self - assumed 'self' in /in/B28CG on line 10 Warning: preg_replace_callback(): Requires argument 2, 'self::static::replace', to be a valid callback in /in/B28CG on line 10 hello world.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STATIC, expecting ')' in /in/B28CG on line 14
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STATIC, expecting ')' in /in/B28CG on line 14
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/B28CG on line 5
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
Parse error: parse error, unexpected T_CLASS in /in/B28CG on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/B28CG on line 5
Process exited with code 255.

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