<?php
$tree = array(
1 => array(
'parent_id' => null,
'name' => 'root',
'depth' => 0,
),
11 => array(
'parent_id' => 1,
'name' => 'a',
'depth' => 1,
),
12 => array(
'parent_id' => 1,
'name' => 'b',
'depth' => 1,
),
111 => array(
'parent_id' => 11,
'name' => 'aa',
'depth' => 2,
),
2 => array(
'parent_id' => null,
'name' => 'other root',
'depth' => 0,
)
);
foreach ($tree as $key => &$sub) {
if (isset($sub['parent_id'])) {
$array[$sub['parent_id']]['children'][$key] = &$sub;
}
}
unset($sub); // unset the reference to make sure to not overwrite it later...
// now remove the entries with parents
foreach ($array as $key => $sub) {
if (isset($sub['parent_id']))
unset($array[$key]);
}
var_dump($array);
- Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- array(2) {
[1]=>
array(1) {
["children"]=>
array(2) {
[11]=>
&array(3) {
["parent_id"]=>
int(1)
["name"]=>
string(1) "a"
["depth"]=>
int(1)
}
[12]=>
&array(3) {
["parent_id"]=>
int(1)
["name"]=>
string(1) "b"
["depth"]=>
int(1)
}
}
}
[11]=>
array(1) {
["children"]=>
array(1) {
[111]=>
&array(3) {
["parent_id"]=>
int(11)
["name"]=>
string(2) "aa"
["depth"]=>
int(2)
}
}
}
}
- Output for 4.4.2 - 4.4.9
- Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/QslQt on line 31
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 '&', expecting T_VARIABLE or '$' in /in/QslQt on line 31
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/QslQt on line 31
Process exited with code 255.
preferences:
237.11 ms | 401 KiB | 371 Q