How to get email address from a long string

Question

In PHP, I have a string like this:

$string = \"user@domain.com MIME-Version: bla bla bla\";

How do i get the email address only? Is there a

Answer 1

I also modified @Rob Locke's answer. I found that it didnt work for me because I had to first split by commas then by spaces.

function extract_email_addresses($sString)
{
  $aRet = array();
  $aCsvs = explode(',', $sString);
  foreach($aCsvs as $sCsv)
  {
    $aWords = explode(' ', $sCsv);
    foreach($aWords as $sWord)
    {
        $sEmail = filter_var(filter_var($sWord, FILTER_SANITIZE_EMAIL), FILTER_VALIDATE_EMAIL);
        if($sEmail !== false)
            $aRet[] = $sEmail;
    }
  }
  return $aRet;  
}