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Extract Email Addresses

Just pass the string (e.g. the body part of an email) to the function, and it returns an array of Email Addresses contained in the String.

function extract_emails_from($string) {
         preg_match_all("/[\._a-zA-Z0-9-]+@[\._a-zA-Z0-9-]+/i", $string, $matches);
         return $matches[0];
}

If you catch the return value of function in $emails, you can parse it using foreach:

foreach($emails as $email) {
    echo trim($email).'<br/>';
}