<?php
$foo = array(
'a' => 1,
'b' => '1',
'c' => 1,
1 => 2,
'1' => '2',
);
function change_keys($array, $callback) {
return array_combine(array_map($callback, array_combine(array_keys($array), array_keys($array))), $array);
}
var_dump(change_keys($foo, function($v) {
return '#' . $v;
}));
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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(4) {
["#a"]=>
int(1)
["#b"]=>
string(1) "1"
["#c"]=>
int(1)
["#1"]=>
string(1) "2"
}
- 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/VmeV2 on line 13
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/VmeV2 on line 13
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/VmeV2 on line 13
Process exited with code 255.
preferences:
204.07 ms | 401 KiB | 321 Q