PHP卷曲工作的somecase，而不是在一些情况下

Question

本规范运作良好

<?php 
      // create curl resource 
      $ch = curl_init(); 

      // set url 
      curl_setopt($ch, CURLOPT_URL, "http://ipdev.in/"); 

      //return the transfer as a string 
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 

      // $output contains the output string 
      $output = curl_exec($ch); 
      echo $output; 
      // close curl resource to free up system resources 
      curl_close($ch);  
    ?> 

但空两个一堆代码不工作。我没有得到一个错误，但在这些情况下，浏览器加载栏只是旋转和旋转，永不停止。该页面显示了很长一段时间的加载和加载，但没有从URL加载。哪里有问题 ？

<?php 
      // create curl resource 
      $ch = curl_init(); 

      // set url 
      curl_setopt($ch, CURLOPT_URL, "https://iiitd.ac.in/"); 

      //return the transfer as a string 
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 

      // $output contains the output string 
      $output = curl_exec($ch); 
      echo $output; 
      // close curl resource to free up system resources 
      curl_close($ch);  
    ?> 

    <?php 
      // create curl resource 
      $ch = curl_init(); 

      // set url 
      curl_setopt($ch, CURLOPT_URL, "http://iiitd.ac.in"); 

      //return the transfer as a string 
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 

      // $output contains the output string 
      $output = curl_exec($ch); 
    echo $output; 
      // close curl resource to free up system resources 
      curl_close($ch);  
    ?> 

Answer 1

链接https://iiitd.ac.in/被重定向到https://www.iiitd.ac.in/所以你需要修改你的卷曲的代码。您需要将CURLOPT_FOLLOWLOCATION设置为true。

有以下解决方案来看看：

<?php 
// create curl resource 
$ch = curl_init(); 

// set url 
curl_setopt($ch, CURLOPT_URL, "https://iiitd.ac.in/"); 

//return the transfer as a string 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 

// added follow location 
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); 

// $output contains the output string 
$output = curl_exec($ch); 
echo $output; 
// close curl resource to free up system resources 
curl_close($ch);