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<?php $str = '-._~%:/?#[]@!$&\'()*+,;='; $str = preg_quote( $str , '/'); $str = "/[" . $str . "]/"; echo $str; $value = "@"; //$value = "@$$$$"; //$value = "++++;"; //$value = ":::"; if (preg_match($str,$value) == 1) { echo "不正な文字です"; }else{ echo "有効な文字です"; }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
/[\-\._~%\:\/\?\#\[\]@\!\$&'\(\)\*\+,;\=]/不正な文字です
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33
/[\-\._~%\:\/\?#\[\]@\!\$&'\(\)\*\+,;\=]/不正な文字です
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195.39 ms | 402 KiB | 184 Q