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<?php class prueba { function __call($name, $arguments) { $name = strtolower($name); return preg_replace_callback('/_([a-z])/', function(array $match) { return strtoupper($match[1]); }, $name); } } echo (new prueba)->__call($key = 'me_ApetEce_COMER_algo_jajjajaj');

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44.75 ms | 402 KiB | 5 Q