PHP 获取网页文件大小实例代码_PHP教程

2. $host="www.ite5e.com";   
3. $fp = fsockopen("$host", 80, $errno, $errstr, 30);   
4. if (!$fp) {   
5. echo "$errstr ($errno)
   ";   
6. } else {   
7. $out = "GET / HTTP/1.1 ";   
8. $out .= "Host: $host ";   
9. $out .= "Connection: Close ";   
10. }   
11.  
12. fwrite($fp, $out);   
13. $i=0;   
14. while($i
15. {   
16.     $i ;   
17. $con.=fread($fp,500);   
18. }   
19. //   
20. echo $con;   
21. //定义取出的字节数   
22. preg_match("/Content-Length:.?(d )/", $con, $matches);   
23. $size = $matches[1];   
24. echo $size;   
25. ?>

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