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run code in 150+ php & hhvm versions
Bugs & Features
<?php $kmtPhone = '04-2342423 234 23 4'; var_dump(preg_replace('! -!', $kmtPhone));
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: preg_replace() expects at least 3 parameters, 2 given in /in/fmbXC on line 3 NULL
Output for 4.3.0 - 5.2.17
Warning: Wrong parameter count for preg_replace() in /in/fmbXC on line 3 NULL