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run code in 300+ PHP versions simultaneously
<?php function taskRunner(Callable $param) { return call_user_func($param); } class Test { function __invoke() { print "Called".PHP_EOL; } } $b=new Test(); call_user_func(function greet(){return "YoLO";});
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected 'greet' (T_STRING), expecting '(' in /in/rnejf on line 15
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING, expecting '(' in /in/rnejf on line 15
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/rnejf on line 15
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/rnejf on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/rnejf 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
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/rnejf on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/rnejf on line 2
Process exited with code 255.

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