PHP实现即时网站截图

<form action="screenshot_it.php">网站地址 (不带 https://):

<br /><input name="site" type="text" size="15" value="www."/>

<br/>大小: <br /><input name="x" type="text" value="800" size="3"/>x<input name="y" type="text" value="1000" size="3"/>px<br />

图片格式:<br /><select name="format"> <option value="PNG">PNG</option>  <option value="JPEG">JPEG</option> </select> 

<br /><br /><input type="submit" name="preview" value="生成截图"/></form>

 

<?php

$x = $_REQUEST['x'];

$y = $_REQUEST['y'];

$format = $_REQUEST['format'];

$site = $_REQUEST['site'];

$surl = 'https://0907.org/screenshot/screenshot_it.php?site='.$site.'&x='.$x.'&y='.$y.'&format='.$format;

if($_REQUEST['format'] == 'PNG') {

$ifm = 'png';

} else {

$ifm = 'jpg';

}

$imt = 'image/'.$ifm;

$ifn = 'screenshot.'.$ifm;

if(isset($_REQUEST['preview'])) {

$iurl = 'https://域名/子目录/screenshot_it.php?site='.$site.'&x='.$x.'&y='.$y.'&format='.$format; 

//例如：https://0907.org/screenshot/screenshot_it.php?site='.$site.'&x='.$x.'&y='.$y.'&format='.$format;

$gwptitle = $_REQUEST['site'].' blog.0907.org';

include_once("../css.php");   

//这里可以删除呦！因为是CSS

 

echo '<p>';

echo '&raquo; <b>点击图片下载截图！</p></b><br/><a href="'.$iurl.'"><img src="'.$iurl.'" width="240" height="320" /></a><br />';

} else {

header("Content-type: $imt");

header("Content-Disposition: attachment; filename= $ifn");

readfile($surl);

}

?>