Call to undefined function: curl_init() in....

seasee

1. 
   
2. 
   
3. PHP Version 4.3.4
   
4. 
   
5. curl_init
   
6. (PHP 4 >= 4.0.2, PHP 5)
   
7. 
   
8. curl_init -- Initialize a CURL session
   
9. Description
   
10. resource curl_init ( [string url] )
    
11. 
    
12. 
    
13. The curl_init() will initialize a new session and return a CURL handle for use with the curl_setopt(), curl_exec(), and curl_close() functions. If the optional url parameter is supplied then the CURLOPT_URL option will be set to the value of the parameter. You can manually set this using the curl_setopt() function. 例子 1. Initializing a new CURL session and fetching a webpage
    
14. 
    
15. <?php
    
16. // create a new curl resource
    
17. $ch = curl_init();
    
18. 
    
19. // set URL and other appropriate options
    
20. curl_setopt($ch, CURLOPT_URL, "http://www.example.com/");
    
21. curl_setopt($ch, CURLOPT_HEADER, 0);
    
22. 
    
23. // grab URL and pass it to the browser
    
24. curl_exec($ch);
    
25. 
    
26. // close curl resource, and free up system resources
    
27. curl_close($ch);
    
28. ?>  
    
29. 
    
30. 
    
31. 
    

复制代码

这段代码，我测试执行时出现这样的错误：
Fatal error: Call to undefined function: curl_init() in d:\appserv\www\test\curl.php on line 4

怎么回事呢

HonestQiao

看手册看手册，这curl的说明最开始的部分。

we_2002

要加载curl库吧