Validating email address on server side is more secure way to prevent from span entry, Some people disabled javascript on their browser and enter wrong or garbage username/email address, So validating email on server side is good approach.
You can use the filter_var() function, which gives you a lot of handy validation and more options.
Note: PHP 5.2.0 or higher is required for the filter_var function.
Here is the quick function in php to validate email address in single line.
function checkValidEmail($email){ return filter_var($email, FILTER_VALIDATE_EMAIL) !== false; } |
Above function will validate email like “iamrohitx@gmail” as a valid email, In Standard HTML5 email validation also pass this string too as a valid email, You need to add some extra security in your function to validate TLS so that you can get more filtered email data.
Email with TLS validation.
function checkValidEmail($email){ return filter_var($email, FILTER_VALIDATE_EMAIL) && preg_match('/@.+\./', $email); } |
Example:
echo checkValidEmail('iamrohitx@gmail'); // false echo checkValidEmail('iamrohitx@gmail.'); // false echo checkValidEmail('[email protected]'); // true echo checkValidEmail('[email protected].'); // false |
