Code for validating email in php
Below is the given PHP code that first checks if the variable passing through is a valid email or not and depending upon that it will returns message: On the above code, we have first take the email address in a variable $email and after that, we have used FILTER_VALIDATE_EMAIL filter with filter_var PHP function to check if the email is valid or not.Here we have used if else statement to express the condition.Now that you have your easy answer feel free to read on about email address validation if you care to learn or otherwise just use the fast answer and move on. Trying to validate an email address using a regex is an "impossible" task.I would go as far as to say that that regex you have made is useless.
Check out this list for tests (both failed and succeeded) of the regex used by PHP's is the best option.
If it has not been submitted, skip the validation and display a blank form.
However, in the example above, all input fields are optional.
Depending on the validity of the email it will display the different message.
The below code is another example of validation an email but with the slightly different technique: In the above code, the output will be same as previous one.
Required field will check whether the field is filled or not in the proper way.