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@ 2014-09-30T10:19:51Z

<?php
$lol = 'C';
$lol = $lol + 1;
var_dump($lol);
$lol = 'C';
$lol = $lol - 1;
var_dump($lol);

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

42.47 ms | 402 KiB | 5 Q