<?php
function keys_with_reference(array $array) {
$clone = $array;
$testObject = new \stdClass;
$keys_with_reference = array();
foreach ($array as $k => $v) {
$clone[$k] = $testObject;
if ($array[$k] === $testObject) {
$array[$k] = $v;
$keys_with_reference[$k] = TRUE;
}
}
return $keys_with_reference;
}
function use_reference(&$v) {
static $static;
$static = $v;
}
$x = array(
'left' => array(),
'right' => array(),
);
print_r(keys_with_reference($x));
use_reference($x['left']);
print_r(keys_with_reference($x));
$left = &$x['left'];
print_r(keys_with_reference($x));
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 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 - 8.2.19, 8.3.0 - 8.3.7
- Array
(
)
Array
(
)
Array
(
[left] => 1
)
- Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
- Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/PiliK on line 5
Array
(
)
Array
(
)
Array
(
[left] => 1
)
- Output for 5.0.0 - 5.0.5
- Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/PiliK on line 3
Process exited with code 255. - Output for 4.4.2 - 4.4.9
- Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/PiliK on line 3
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_ARRAY, expecting ')' in /in/PiliK on line 3
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error, expecting `')'' in /in/PiliK on line 3
Process exited with code 255.
preferences:
269.37 ms | 401 KiB | 458 Q