php - 从 cURL 获取内容类型

Question

这对于获取标题非常有效

 $imageurl = "http://p.twimg.com/AW2-vIUCAAE_1FN.png";

  $ch = curl_init();
  curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt ($ch, CURLOPT_URL, $image_url);
  curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 20);
  curl_setopt ($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
  curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, true);
  curl_setopt($ch, CURLOPT_HEADER, true); 
  curl_setopt($ch, CURLOPT_NOBODY, true);

  $content = curl_exec ($ch);

  curl_close ($ch);

  print_r($content);

回归

HTTP/1.1 200 OK
Server: nginx
X-peep-host: den2twapi014
Last-Modified: Mon, 15 Aug 2011 03:41:50 GMT
ETag: "7283847-dbb8-4aa830b1dabf0"
Accept-Ranges: bytes
Content-Length: 56248
Cache-Control: public, max-age=21600
Expires: Wed, 28 Mar 2012 15:53:57 GMT
Content-Type: image/png
X-CDN: AKAM
Date: Wed, 28 Mar 2012 09:53:57 GMT
Connection: keep-alive

回显 Content-Type: 的最佳方式是什么？

Answer 1

试试这个:-

<?php
$image_url = "http://p.twimg.com/AW2-vIUCAAE_1FN.png";

  $ch = curl_init();
  curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt ($ch, CURLOPT_URL, $image_url);
  curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 20);
  curl_setopt ($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
  curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, true);
  curl_setopt($ch, CURLOPT_HEADER, true); 
  curl_setopt($ch, CURLOPT_NOBODY, true);

  $content = curl_exec ($ch);
  $contentType = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
    echo $contentType;
    echo "<br/>";
  curl_close ($ch);
    echo "<pre>";
  print_r($content);
  ?>