- Output for 5.6.38, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 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
- string(3) "foo"
- Output for 7.0.0 - 7.0.31
- string(3) "bar"
<?php
$mock = [
'foo' => null
];
foreach ($mock as &$item) {
$item = 'foo';
}
unset($item);
$mockCopy = $mock;
$mockCopy['foo_copy'] = $mock['foo'];
$mockCopy['foo'] = 'bar';
var_dump($mock['foo']);