PHP에서 숫자 개수를 숨기는 방법

/** * 1、隐藏电话号码中间4位和邮箱 */ function hidtel($phone) { //隐藏邮箱 if (strpos($phone, '@')) { $email_array = explode("@", $phone); $prevfix = (strlen($email_array[0]) < 4) ? "" : substr($phone, 0, 3); //邮箱前缀 $count = 0; $str = preg_replace('/([\d\w+_-]{0,100})@/', '***@', $phone, -1, $count); $rs = $prevfix . $str; return $rs; } else { //隐藏联系方式中间4位 $Istelephone = preg_match('/(0[0-9]{2,3}[\-]?[2-9][0-9]{6,7}[\-]?[0-9]?)/i', $phone); //固定电话 if ($Istelephone) { return preg_replace('/(0[0-9]{2,3}[\-]?[2-9])[0-9]{3,4}([0-9]{3}[\-]?[0-9]?)/i', '$1****$2', $phone); } else { return preg_replace('/(1[0-9]{1}[0-9])[0-9]{4}([0-9]{4})/i', '$1****$2', $phone); } } } /** * 2、使用hidtel */ public function useHidel() { $phone1 = $this->hidtel("010-57033050"); $phone2 = $this->hidtel("01057033050"); $mobil = $this->hidtel("13661226666"); $email = $this->hidtel("1963632356@qq.com"); return $phone1.'
'.$phone2.'
'.$mobil.'
'.$email; }

$checkmail = '/\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/';//是否邮箱 if(preg_match($checkmail,$userName)){ $type = 'email'; $value = $userName; }elseif(preg_match("/^1[34578]\d{9}$/", $userName)){ //是否手机号 $type = 'mobile'; $value = $userName; }else{ $type = 'user_name'; $value = $userName; }