@ 2014-10-22T18:10:47Z <?php
$array1 = array('a'=>'a','b'=>'b','c'=>'c','d' =>'d','e' =>'e');
$array2 = array('a','c','e');
$array = array_filter($array1, function($key) use ($array2) {
return in_array($key, $array2);
}, ARRAY_FILTER_USE_KEY);
var_dump($array);
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Output for 5.6.0 - 5.6.38 , 7.0.0 - 7.0.33 , 7.1.0 - 7.1.25 , 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 - 8.1.27 , 8.2.0 - 8.2.17 , 8.3.0 - 8.3.4 array(3) {
["a"]=>
string(1) "a"
["c"]=>
string(1) "c"
["e"]=>
string(1) "e"
}
Output for 5.3.0 - 5.3.29 , 5.4.0 - 5.4.45 , 5.5.0 - 5.5.38 Notice: Use of undefined constant ARRAY_FILTER_USE_KEY - assumed 'ARRAY_FILTER_USE_KEY' in /in/11JDo on line 7
Warning: array_filter() expects at most 2 parameters, 3 given in /in/11JDo on line 7
NULL
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/11JDo 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 , 5.0.0 - 5.0.5 Parse error: parse error, unexpected T_FUNCTION in /in/11JDo on line 5
Process exited with code 255 . Output for 4.3.2 - 4.3.4 Parse error: parse error in /in/11JDo on line 5
Process exited with code 255 . preferences:dark mode live preview
313.69 ms | 401 KiB | 417 Q