PHP filter ★ and other special symbols regular_PHP tutorial
if(preg_match("/[ '.,:;*?~`!@#$% ^&+=)(<>{}]|]|[|/|\|"||/",$user)){
echo 'Do not include special symbols in the name, please only use For letters, numbers and Chinese characters, of course your browser must select Simplified Chinese GB2312, do not select Traditional Chinese, Chinese HZ, etc. Return and modify, I will wait for you! ';
exit();
}
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