Validating email form php who is enrique iglesias dating right now
And when the page loads, the Java Script code will be executed (the user will see an alert box).This is just a simple and harmless example how the PHP_SELF variable can be exploited.If you want to know which regex pattern PHP (currently) uses to validate email addresses see the PHP source.If you want to learn more about email addresses I suggest you to start reading the specs, but I have to warn you it is not an easy read by any stretch: P. A note on the regex pattern used above (from the PHP source).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.
Also, you must remember that email address standard was and can evolute, so you can't just type some "standard-valid" regexp once and for all times.However, in the example above, all input fields are optional.The script works fine even if the user does not enter any data.Such code can now do no harm and is safe to be displayed on a page or inside an e-mail. if quotes are escaped with a slash \ let's remove that.Sure, it may not look nice and tell you someone has been trying to mess with your script, but the important thing is he/she had failed! If you know exactly what kind of data to expect you can make further steps to ensure the user has entered what you want. Instead of writing the same code over and over again we can create a function that will do all the checking for us.