PHP Fatal error: Class 'Curl' not found with PHP 5.5

问题:

I'm trying to run this code:

<?php       $url = 'https://api.stackexchange.com/2.1/comments';     $data = array("site" => 'graphicdesign', "key" => "W*i*e*V*M*N*F*y*b*t*R*((", "filter" => "!2.5sIHWRkCVWC)rFPY_1P", "order" => "desc", "sort" => "creation");      $httpresponse = (new Curl)->exec($url . '?' . http_build_query($data), [CURLOPT_ENCODING => 'gzip']); //Line 6      $obj = json_decode($httpresponse);     $response = $obj->{'items'}; 

However, it fails with this error:

$ php getcomments.php  PHP Fatal error:  Class 'Curl' not found in /home/me/gdcommentgetter/getcomments.php on line 6 

From my previous question, I though it might be a problem with my PHP version - class member access on instantiation ((new Object)->method()) wasn't available until PHP 5.4.

php --version, though, shows that I'm on a version > 5.4:

$ php --version PHP 5.5.7-1+sury.org~precise+1 (cli) (built: Dec 12 2013 21:48:51)  Copyright (c) 1997-2013 The PHP Group Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies     with Zend OPcache v7.0.3-dev, Copyright (c) 1999-2013, by Zend Technologies 

I've run sudo apt-get install php5-curl, as suggested many places, but it still fails with the same error. What's wrong?

回答1:

According to the documentation there is no class Curl.

Perhaps you forgot to import some class of your own, or of another third-party vendor?

回答2:

You are probably using some third-party Curl library which provides the class.

Otherwise you need to use curl_init() and if you haven't got curl installed you need to install like so:

sudo apt-get install php5-curl

this is for Ubuntu machines only and some other distros probably

回答3:

Well there is no built it curl class in php but many devs have created their own wrapper around curl like https://github.com/sirfilip/curl/blob/master/Curl.php . The reason that it works on your server is because maybe you have installed some php lib on the server that you dont have it installed locally.

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