Save email attachment with mailparse

save-email-attachment.php

#!/usr/bin/php
<?php

// create a resource
$parsed = mailparse_msg_create();
// read the mime-encoded email file from stdin
$email = file_get_contents('php://stdin');
// parse the mime-encoded email
mailparse_msg_parse($parsed, $email);
$structure = mailparse_msg_get_structure($parsed);

foreach($structure as $s) {
        $part = mailparse_msg_get_part($parsed, $s);
        $part_data = mailparse_msg_get_part_data($part);

        $headers = $part_data['headers'];

        if(array_key_exists('content-disposition', $part_data) && $part_data['content-disposition'] == 'attachment') {
                $file_data_encoded = substr($email, $part_data['starting-pos-body'], $part_data['ending-pos-body']);
                $file_data = base64_decode($file_data_encoded);

                $filename = $part_data['disposition-filename'];
                $file = fopen('/tmp/' . $filename, "w+");
                fwrite($file, $file_data);
                fclose($file);
        }
}
?>