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run code in 200+ php & hhvm versions
Bugs & Features
<?php $isX64 = ((getenv('PROCESSOR_ARCHITEW6432') ? getenv('PROCESSOR_ARCHITEW6432') : getenv('PROCESSOR_ARCHITECTURE')) == 'AMD64'); var_dump($isX64);
Output for 4.3.0 - 7.2.0
bool(false)