<?php $tallas = '#^(?:' . implode('|', array("XL", "L", "M", "S", "XS")) . ')(?!\S)#i'; $variablenames = [ "Marron", "m", "M" ]; foreach ($variablenames as $variablename) { if (preg_match($tallas, $variablename, $matchesatr)) { $opciones = "Tallas"; } else { $opciones = "Opciones"; } echo $opciones . PHP_EOL; }
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