php即时网站截图的实现代码

2，php代码部分

3. $x = $_REQUEST['x'];

4. $y = $_REQUEST['y'];
5. $format = $_REQUEST['format'];
6. $site = $_REQUEST['site'];
7. $surl = 'http://jbxue.com/screenshot_it.php?site='.$site.'&x='.$x.'&y='.$y.'&format='.$format;
8. if($_REQUEST['format'] == 'PNG') {
9. $ifm = 'png';
10. } else {
11. $ifm = 'jpg';
12. }
13. $imt = 'image/'.$ifm;
14. $ifn = 'screenshot.'.$ifm;
15. if(isset($_REQUEST['preview'])) {
16. $iurl = 'http://域名/子目录/screenshot_it.php?site='.$site.'&x='.$x.'&y='.$y.'&format='.$format;
17. //例如：http://jbxue.com/screenshot_it.php?site='.$site.'&x='.$x.'&y='.$y.'&format='.$format;
18. $gwptitle = $_REQUEST['site'].' bbs.it-home.org';
19. include_once("../css.php");
20. //可以删除

21. echo '';

22. echo '» 点击图片下载截图！
    
    ';
23. } else {
24. header("Content-type: $imt");
25. header("Content-Disposition: attachment; filename= $ifn");
26. readfile($surl);
27. }
28. ?>