Gmail IMAP Scrapper

<?php
    $email = array(
            'host'      => '{imap.gmail.com:993/imap/ssl/novalidate-cert}INBOX',
            'username'  => 'email@gmail.com',
            'password'  => 'password'
        );

     $read  = imap_open($email['host'],$email['username'],$email['password']);
     $array = imap_search($read,'SUBJECT "BIGtoken" UNSEEN');

     if($array==null){
        echo 'Link Token Not Found!';
        echo PHP_EOL;
     }else{

     foreach($array as $a){
        $header = imap_header($read, $a);
        $html = imap_qprint(imap_fetchbody($read, $a, 1));

        $dom = new DOMDocument;
        @$dom->loadHTML($html);
        $links = $dom->getElementsByTagName('a');
        $link = $links[1]->getAttribute('href')."\n";
        file_put_contents('link.txt', $link, FILE_APPEND | LOCK_EX);
        echo 'Link Found => ' .$link;
     }
}
?>