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@ 2013-12-02T14:14:43Z

<?php

$a ="zz";
$b = "zz";

$a++;
$b--;

var_dump($a);
var_dump($b);

$c = "zz";
$c += 1;
var_dump($c);

$d = "zz";
$d -= 1;
var_dump($d);

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

43.73 ms | 402 KiB | 5 Q