another regex email post (in php)

Im handling various email addresses that come in the following forms

John Doe <5555555555@mail.com>
5555555555@mail.com

How could i use regex, to find the @ symbol, and then return the integer's behind it (u开发者_如何学编程ntil it doesnt find anymore, or runs into a non number, < or space for example.)

---

/^\D*(\d*)@/

Will match any number of non-digits, any number of digits, followed by an @.

The capturing group will contain the digits.

---

Just search for this regex:

(\d*)@

And then look at the first capture group.

---

You could try something like...

preg_match("#^[\D]+\<([\d]+)#", "John Doe <5555555555@mail.com>", $matches);