<?php // php 5.3.0+ $initial = 'PROP_RESOURCE_TYPE'; $words = explode('_', $initial); foreach($words as &$word){ $word = ucfirst(strtolower($word)); } $final = implode($words); echo $final; // returns PropResourceType // if you want a lowercase first letter just do echo lcfirst($final); // returns propResourceType
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