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<?php function mediaapi_filter_underscoretocamelcase($string) { $string = explode('_', $string); array_walk($string, function ($item, $key) { if ($key > 0) { $item = ucfirst($item); } return $item; }); return implode('', $string); } echo mediaapi_filter_underscoretocamelcase('franz_deleon');

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