PHP的捲曲登錄問題（空白頁）

Question

更新：我現在能夠訪問主網頁，但我沒有登錄

$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, 'http://www.xxx.com/?cmd=home'); 
curl_setopt ($ch, CURLOPT_POST, 1); 
curl_setopt ($ch, CURLOPT_POSTFIELDS, 'emailAddress=jeffanderson@tradermail.info&persist=on&pswd=qweqwe&from=/?cmd=home'); 
curl_setopt ($ch, CURLOPT_COOKIEJAR, 'cookie.txt'); 
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
$content = curl_exec ($ch); 
curl_close ($ch); 

echo $content; 

Answer 1

添加curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);。

Answer 2

curl_exec()返回false如果出現了一個問題：

$content = curl_exec($ch); 
if ($content === FALSE) { 
     die(curl_error($ch)); 
} 
return($content); 

Answer 3

你需要做兩件事情。首先，將以下兩個選項添加到CURL：

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); 
curl_setopt($ch, CURLOPT_MAXREDIRS, 3); 

這將告訴CURL遵循任何重定向。然後，將返回更改爲回顯。 Echo會將數據發送到瀏覽器。然後，你們都準備好了！

Answer 4

畢竟光榮answer..u把所有一起在下面的方式

$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, 'http://www.xxx.com/?cmd=sb-login&from=/?cmd=home'); 
curl_setopt ($ch, CURLOPT_POST, 1); 
curl_setopt ($ch, CURLOPT_POSTFIELDS, 'emailAddress=xxx@tradermail.info&persist=on&pswd=xxx&from=/?cmd=home'); 
curl_setopt ($ch, CURLOPT_COOKIEJAR, 'cookie.txt'); 
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); 
curl_setopt ($ch, CURLOPT_MAXREDIRS, 10); 
$content = curl_exec($ch); 
if (FALSE===$content { 
     echo "Follwowing error:".curl_error(); 
     die(curl_errorno($ch)); 
} 
curl_close ($ch); 
return($content);