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run code in 200+ php & hhvm versions
Bugs & Features
<?php $cena = '5,5'; echo sprintf("%01.2f", preg_replace(array("/ /", "/,/"), array("", "."), $cena));
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
5.50