[SOLVED] preg_match email addresses

[inactive]

hey guys just doing my first preg_match to look for a valid email address.

 

im using "^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$^"

 

which works, but the thing is i need it to pick out an email out of a csv-like string.

 

i.e. the sting may be:

"foo","bar","foobar","[email protected]"

 

and i need it to pick out the [email protected], and just cant work out how to do it.

 

any ideas?

 

probably a kinda lame question i know, but all the regex tutes i find are so complex...

 

cheers.

[rhodesa]

If you are reading from a CSV file, you should check out http://us.php.net/fgetcsv, it will do all the data parsing for you. Then you can use your regex to test the email address.

[inactive]

tks rhodesa, very helpful idea.

 

but out of curiosity, does anyone know how i would do what i wanted without fgetscsv?

[rhodesa]

There are lots of ways. Here is one:

<?php
  $string = '"foo","bar","foobar","[email protected]"';
  list(,,,$email) = explode(',',$string,4);
  $email = trim($email,'"');
  print $email;
?>

[inactive]

yeah thats what i ended up using (roughly).

 

what about using preg_match?

[rhodesa]

you could use:

<?php
  $string = '"foo","bar","foobar","[email protected]"';
  if(preg_match('/"([^"]+)"$/',$string,$matches)){
    $email = $matches[1];
    print $email;
  }
?>

[inactive]

cheers.

[inactive]

After splitting the CSV into an array, you can iterate through it and check for an email with 

filter_var($email, FILTER_VALIDATE_EMAIL)