JavaScript RegExp to PHP RegExp

Question

I have a RegExp for e-mail check on the user side in JavaScript like this:

var uzorak = new RegExp("^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$");

and i would like to rename it to PHP RegExp for the server side check.

There isn't that much difference between the two, so have you tried just copying it into the appropriate PHP function? That said, that regex will fail a lot of valid addresses, so you're better off using either a much simpler check, or a much more complex one. PHP's filter functions have one built in, for instance http://php.net/filter — IMSoP, May 31 '18 at 09:29

score -1 · Answer 1 · answered May 31 '18 at 09:34

$("#Save").click(function(){
var uzorak = new RegExp("^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$");

var EmailAddress = $("#txt1").val();
var uzorak = new RegExp("^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$");

if(!uzorak.test(EmailAddress))
{
  alert('not a valid e-mail address');
}
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<input type="text" Id="txt1"/>
<button id="Save">Save</button>

JavaScript RegExp to PHP RegExp

1 Answers1