Question

I have a PHP script which has the source of an email. I aim to split the headers into variables $To and $From

The issue comes when trying to split the to and from strings up. What I need the script to do is take

From: John <[e-mail]>
To: Susy <[e-mail]>, Steven <[e-mail]>, Mary <[e-mail]>

and return only the from address and the to addresses which are on my site. I.e.

$From = '[e-mail]';
$To = array('[e-mail]', '[e-mail]');

So the code needs to turn a string of email addresses into an array and then filter out the ones from other sites. It’s the first part that is proving difficult because of the different ways an email address can be listed in a header.

Answer 1

 <?php

 $k= "......Subject: Write the program any of your favorite language whenever if you feel
  you are free
 From: Vinay Kumar <[e-mail]>
 To: [e-mail], [e-mail],Susy <[e-mail]>, Steven      <[e-mail]>, Mary <[e-mail]>
 Content-Type: multipart/alternative; boundary=bcaec53964ec5eed2604acd0e09a

 --bcaec53964ec5eed2604acd0e09a
 Content-Type: text/plain; charset=ISO-8859-1
 .......";


 if(preg_match('/From:(?P<text>.+)\r\n/', $k, $matches1))
 {

      if(preg_match('/(?P<from>([a-z0-9])(([-a-z0-9._])*([a-z0-9]))*\@([a-z0-9])' .'(([a-z0-9-])*([a-z0-9]))+' . '(\.([a-z0-9])([-a-z0-9_-])?([a-z0-9])+)+)/', $matches1['text'],$sender ))
      {

         print_r($sender['from']);

      }

 }


 if(preg_match('/To:(?P<text>.+)\r\n/', $k, $matches2))
 {
    if(preg_match_all('/(?P<to>([a-z0-9])(([-a-z0-9._])*([a-z0-9]))*\@([a-z0-9])' .
'(([a-z0-9-])*([a-z0-9]))+' . '(\.([a-z0-9])([-a-z0-9_-])?([a-z0-9])+)+)/', $matches2['text'], $reciever))
    {
        if(isset($reciever['to']))
        {
                print_r($reciever['to']);
        }
    }
 }

to get the subject:

 if(preg_match('/Subject:(?P<subject>.+)\r\n/', $k, $subject))
 {    

         print_r($subject['subject']);
 }