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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(function_exists('gmp_root'));
Output for 5.6.7 - 5.6.20, 5.6.28 - 7.0.5, 7.0.14 - 7.1.0
bool(true)
Output for 4.3.0 - 5.5.35, 5.6.21, 7.0.6
bool(false)