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run code in 150+ php & hhvm versions
Bugs & Features
<?php $f = get_defined_functions(); $funcs = $f['internal']; print_r(array_slice($funcs, 0, 1));
Output for 4.3.0 - 5.6.28, 7.0.0 - 7.1.0
Array ( [0] => zend_version )
Output for hhvm-3.10.0 - 3.12.0
Array ( [0] => imap_delete )