<?php
function prune_leaves($array) {
foreach($array as $k => $v) {
var_dump($v, NULL, $v === NULL);
if ($v === NULL) unset($array[$k]);
if (is_array($v)) prune_leaves($v);
}
return $array;
}
$test1 = ['a' => 123, 'b' => ['c' => null]];
var_dump(prune_leaves($test1));
- Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 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 - 8.2.19, 8.3.0 - 8.3.7
- int(123)
NULL
bool(false)
array(1) {
["c"]=>
NULL
}
NULL
bool(false)
NULL
NULL
bool(true)
array(2) {
["a"]=>
int(123)
["b"]=>
array(1) {
["c"]=>
NULL
}
}
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected '[' in /in/Fig5b on line 12
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 '[' in /in/Fig5b on line 12
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/Fig5b on line 12
Process exited with code 255.
preferences:
269.55 ms | 401 KiB | 358 Q