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@ 2017-01-08T17:08:19Z

<?php

$str = "a_z";
$str++;
var_dump($str);
$str--;
var_dump($str);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

42.73 ms | 1733 KiB | 5 Q