Downloading attachments to directory with IMAP in PHP, randomly works

Question

I found PHP code online to download attachments to a directory using IMAP from here. http://www.nerdydork.com/download-pop3imap-email-attachments-with-php.html

I mod

Answer 1

    //may this help you...good luck
    date_default_timezone_set('UTC');
    error_reporting(E_ALL);
    ini_set('display_errors', '1');     
    ini_set('memory_limit', '-1');     
    ini_set('max_execution_time', 0); 
    set_time_limit(3000); 
    $fName = [];
    if ($subject=='xyz subject' || $subject=='xyz subject')$folder_name = $subject;
    else$folder_name = substr($subject,stripos($subject,':')+2);
    $list = glob('downloads/xyz/'.$folder_name.'/*');
    foreach($list as  $key => $filename){$explodeName = explode('/', $filename);$fName[] = $explodeName[2];}
    foreach($list as $file){if(is_file($file))unlink($file);}     

    $hostname = '{imap.gmail.com:993/imap/ssl}Inbox';
    $username = 'xyz.xyz@xyz.com';
    $password = '*******************';

    $inbox = imap_open($hostname,$username,$password) or die('Cannot connect to Gmail: ' . imap_last_error());  
    $emails   = imap_search($inbox, 'SUBJECT "'.$subject.'"');
    foreach ($emails as $key => $value) {

        $overview = imap_fetch_overview($inbox,$value,0);
        $message_date = new DateTime($overview[0]->date);
        $date = $message_date->format('Ymd');
        $message = imap_fetchbody($inbox,$value,2);
        $structure = imap_fetchstructure($inbox, $value);
        $attachments = [];
        if(isset($structure->parts) && count($structure->parts)) 
        {
            for($i = 0; $i < count($structure->parts); $i++) 
            {
                $attachments[$i] = array(
                        'is_attachment' => false,
                        'filename' => '',
                        'name' => '',
                        'attachment' => ''
                    );
                if($structure->parts[$i]->ifdparameters) 
                {
                    foreach($structure->parts[$i]->dparameters as $object) 
                    {
                        if(strtolower($object->attribute) == 'filename') 
                        {
                            $attachments[$i]['is_attachment'] = true;
                            $attachments[$i]['filename'] = $object->value;
                        }
                    }
                }

                if($structure->parts[$i]->ifparameters) 
                {
                    foreach($structure->parts[$i]->parameters as $object) 
                    {
                        if(strtolower($object->attribute) == 'name') 
                        {
                            $attachments[$i]['is_attachment'] = true;
                            $attachments[$i]['name'] = $object->value;
                        }
                    }
                }

                if($attachments[$i]['is_attachment']) 
                {
                    $attachments[$i]['attachment'] = imap_fetchbody($inbox, $value, $i+1);                           
                    if($structure->parts[$i]->encoding == 3) //3 = BASE64 encoding
                    { 
                        $attachments[$i]['attachment'] = base64_decode($attachments[$i]['attachment']);
                    }
                    elseif($structure->parts[$i]->encoding == 4) //4 = QUOTED-PRINTABLE encoding
                    { 
                        $attachments[$i]['attachment'] = quoted_printable_decode($attachments[$i]['attachment']);
                    }
                }
            }
            foreach($attachments as $attachment)//iterate through each attachment and save it
            {
                if($attachment['is_attachment'] == 1)
                {
                    $filename = $attachment['name'];                        
                    if(empty($filename)) $filename = $attachment['filename'];
                    if(empty($filename)) $filename = time() . ".dat";
                    $new_fileName = $date.'-'.$value.'-'.$filename;                        
                    if(!in_array($new_fileName, $fName))
                    {
                        $folder='./downloads/xyz/'.$folder_name.'/';
                        if(!is_dir($folder))mkdir($folder);
                        $fp = fopen("./". $folder ."/". $date . "-". $value."-". $filename, "w+");
                        fwrite($fp, $attachment['attachment']);
                        fclose($fp);
                    }
                }
            }
        }
        imap_mail_move($inbox,$overview[0]->msgno,'xyz_label'); 
        imap_expunge($inbox); 

        /*  ->Always try to read/open the email by subject/or according to need
            ->Move or Delete Old/not required mail, so that u don't need to search/load lots of email
            ->Avoiding unnecessary and old email of the same subject , is to move/delete the same.
        */
    }
    imap_close($inbox);//Never forget to close the connection