curl_init 里CURLOPT_COOKIEJAR 怎么cookies怎么保存不了

[luyi0018]

//cookie保存目录
$cookie_jar = 'cookie.txt';

//模拟请求数据
function request($url,$postfields,$cookie_jar,$referer){
$ch = curl_init();

$options = array(CURLOPT_URL => $url,
CURLOPT_SSL_VERIFYHOST=>1,
CURLOPT_SSL_VERIFYPEER=>false,
CURLOPT_HEADER => 0,
CURLOPT_NOBODY => 0,
CURLOPT_PORT => 80,
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => $postfields,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_COOKIEJAR => $cookie_jar,
CURLOPT_COOKIEFILE => $cookie_jar,
CURLOPT_REFERER => $referer
);
curl_setopt_array($ch, $options);
ob_start(); //开启浏览器缓存
$code = curl_exec($ch);
curl_close($ch);
ob_end_clean();
return $code;
}

$url = 'http://www.91job.com/checkuser.asp';
$postfields='username=luyi0018&userpassword=19860104';
echo request($url,$postfields,$cookie_jar,'');
unset($postfields,$url);


弄去怎么cookies保存不了,页面可以得到就是根目录下的 cookie.txt怎么保存不了,高手解决一下啊

[phpboy]

//cookie保存目录 
$cookie_jar = 'cookie.txt'; 
    
//模拟请求数据 
function request($url,$postfields,$cookie_jar,$referer){ 
$ch = curl_init(); 

$options = array(CURLOPT_URL => $url, 
      CURLOPT_SSL_VERIFYHOST=>1, 
  CURLOPT_SSL_VERIFYPEER=>false, 
      CURLOPT_HEADER => 0, 
      CURLOPT_NOBODY => 0, 
      CURLOPT_PORT => 80, 
      CURLOPT_POST => 1, 
      CURLOPT_POSTFIELDS => $postfields, 
      CURLOPT_RETURNTRANSFER => 1, 
      CURLOPT_FOLLOWLOCATION => 1, 
      CURLOPT_COOKIEJAR => $cookie_jar, 
      CURLOPT_COOKIEFILE => $cookie_jar, 
      CURLOPT_REFERER => $referer 
); 
curl_setopt($ch, $options); //随便改了下，不知道对不对，你看看
ob_start();      //开启浏览器缓存 
$code = curl_exec($ch); 
curl_close($ch); 
ob_end_clean(); 
return $code; 
} 

$url = 'http://www.91job.com/checkuser.asp'; 
$postfields='username=luyi0018&userpassword=19860104'; 
echo request($url,$postfields,$cookie_jar,''); 
unset($postfields,$url); 


//弄去怎么cookies保存不了,页面可以得到就是根目录下的 cookie.txt怎么保存不了,高手解决一下啊

[luyi0018]

自己已经解决

[风声边界]

如何解决的？