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@ 2014-09-04T20:23:47Z

<?php
$isX64 = ((getenv('PROCESSOR_ARCHITEW6432') ? getenv('PROCESSOR_ARCHITEW6432') : getenv('PROCESSOR_ARCHITECTURE')) == 'AMD64');
var_dump($isX64);

Output
Performance
VLD
References
Branches

getenv: documentation ( source)
var_dump: documentation ( source)

preferences:dark modelive preview

30.42 ms | 402 KiB | 5 Q