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<?php class Bar { public static function foo() { $array1 = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5); print_r(array_filter($array1, 'Bar::baz')); } private static function baz($var) { return($var & 1); } } Bar::foo();
Output for 5.2.2 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [a] => 1 [c] => 3 [e] => 5 )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.1
Warning: array_filter(): An error occurred while invoking the filter callback in /in/2XKJo on line 8 Array ( )
Output for 5.0.0 - 5.0.5
Warning: array_filter(): The second argument, 'Bar::baz', should be a valid callback in /in/2XKJo on line 8
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/2XKJo on line 4
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/2XKJo on line 4
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/2XKJo on line 4
Process exited with code 255.
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