<?php $convmap = [0x80, 0x10FFFF, 0x1, 0x1FFFFF]; $s = 'déjà � áá &#áá á át'; var_dump([ 'mb_decode_numericentity' => $a = mb_decode_numericentity($s, $convmap, 'UTF-8'), "preg_replace('/á?/', 'à')" => $b = preg_replace('/á?/', 'à', $s), 'eq' => $a === $b, ]);
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