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@ 2019-04-17T04:52:19Z

<?php
$a = [];
$a[1] = 1;
foreach ($a as $k => &$v) {
    var_dump($v);
    if ($k == 1) $a[4] = 4;
    if ($k == 4) $a[2] = 2;
}

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

25.83 ms | 404 KiB | 5 Q