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【ＰＨＰ】全角半角の混合文字列を削除

Posted at 2021-10-06

<?php
$hankaku_zenkaku = '　 全角半角　 ';

$trim = trim(mb_convert_kana($hankaku_zenkaku, "s", 'UTF-8'));

echo "＝＝＝{$trim}＝＝＝";

#結果

＝＝＝全角半角＝＝＝