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<?php $convmap = [0x80, 0x10FFFF, 0x1, 0x1FFFFF]; $s = 'déjà &#0; &#225;&#225; &#&#225&#225 &#225 &#225t'; var_dump([ 'mb_decode_numericentity' => $a = mb_decode_numericentity($s, $convmap, 'UTF-8'), "preg_replace('/&#225;?/', 'à')" => $b = preg_replace('/&#225;?/', 'à', $s), 'eq' => $a === $b, ]);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["mb_decode_numericentity"]=> string(30) "déjà &#0; àà &#àà à àt" ["preg_replace('/&#225;?/', 'à')"]=> string(30) "déjà &#0; àà &#àà à àt" ["eq"]=> bool(true) }

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