PHP 使用PHP的filter_var来验证电子邮件或号码

Posted 2021-05-14

//selecting user based on his personal ID number
if(filter_var($var, FILTER_VALIDATE_INT)) $sql = "select * from user where JMBG='$var'";
//selecting user based on his email
else if(filter_var($var, FILTER_VALIDATE_EMAIL)) $sql = "select * from user where email='$var'";
//selecting user based on his username
else $sql = "select * from user where username='$var'";