بخش ذخیره فایل رو با fwrite و fopen نوشتم باز هم خطای قبلی رخ داد.
if($exists){
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_FRESH_CONNECT, TRUE);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 100000000000000);
$str = curl_exec($curl);
curl_close($curl);
$txt= str_get_html($str);
foreach($txt->find('div[id=vposttext]') as $article) {
//file_put_contents('w/'.$i.'.txt' , $article->plaintext);
$file = fopen('w/'.$i.'.txt',"w");
echo fwrite($file,$article->plaintext);
fclose($file);
break;
}
$txt->clear();
}