[Camel case formatter] Function to format a snake case string to camal case string #PHP

utils.php

<?php

/**
 * @param string $string
 *
 * @return string
 */
function camelCaseFormatter($string) {	
	$format = null;
	$stringExplode = explode('_', $string);
	
	for ($i = 0; $i < count($stringExplode); ++$i) {
		if ($i !== 0) {
			$format .= ucwords($stringExplode[$i]);
		} else {
			$format .= lcfirst($stringExplode[$i]);
		}
	}
	
	return $format;
}