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run code in 150+ php & hhvm versions
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<?php class C { public function f() { array_map( function($a) { return array_map('self::_p', $a); }, array(array('a')) ); } protected function _p($a) { echo $a; return $a; } } $o = new C; $o->f();
Output for 5.4.0 - 7.1.0
a
Output for 5.3.0 - 5.3.29
Warning: array_map() expects parameter 1 to be a valid callback, cannot access self:: when no class scope is active in /in/MX4FP on line 7
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/MX4FP on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/MX4FP on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/MX4FP on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/MX4FP on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/MX4FP on line 3
Process exited with code 255.