本文实例讲述了php实现的css文件背景图片下载器代码。分享给大家供大家参考。具体实现方法如下:
下载css文件里面的背景图片是我们这些盗版份子长期搞的事情,下载个css图片下载器常出现各种广告弹窗,实在扛不住。这里就提供了一个php版的css文件背景图片下载器给大家。
把文件放到php程序目录 dos下面 php.exe cssImages.php 0 http://www.xxxx.com/css/style.css \images\
先在php程序目录建个images文件夹,呵呵,贴代码:
*@阿唐 2013-4-6 22:19
*@呵呵
*/
set_time_limit(0);
error_reporting(E_ERROR);
if($argc print_r('
+-------------------------------------------------+
Usage: php '.$argv[0].' css路径类型(0为远程、1为本地) css文件路径 图片保存目录
Example:
php.exe '.$argv[0].' 0 http://www.xxx.com/index.css \images\
+-------------------------------------------------+
');
exit();
}
//远程css
if($argv[1]==0){
$host = getParse($argv[2],'host');
$savePath = getSavePath($argv[3]);
$images = getCssImagesArray($argv[2]);
//print_r($images);
$imagesurls = getImagesLinks($images,$argv[2]);
imagesDowner($imagesurls);
}
//本地css开始
if($argv[1]==1){
//懒得写了,呵呵,这个没多大意义
}
/*
* css图片分析函数
* $csspath css文件路径
*/
function getCssImagesArray($csspath){
$cssFile = file_get_contents($csspath);
$images = array();
preg_match_all("|url\((.+)\)|i",$cssFile,$images);
$images = $images[1];
return $images;
}
/*
* css文件相对目录处理函数
* $path 路径
*/
function getNocssPath($path){
global $host;
$tempLinkmages='';
//相当路径获取
$tempPath = explode('/',$path);
for($i=1;$i $tempLinkmages .= $tempPath[$i].'/';
}
$xdImage = $host.$tempLinkmages;
return $xdImage;
//相当路径获取
}
/*
* 图片连接获取函数
* $images array 所有需要获取的images数组
* cssLink css文件链接
*/
function getImagesLinks($imagesArray,$cssLink){
global $host;
$urlImages = array();
foreach($imagesArray as $key=>$value){
if(pathCheck($value)){
if((!in_array(($host.$value),$urlImages))){
$urlImages[$key] = $host.$value;
}
}else{
if((!in_array((getNocssPath(getParse($cssLink,'path')).$value),$urlImages))){
$urlImages[$key] = getNocssPath(getParse($cssLink,'path')).$value;
}
}
}
return $urlImages;
}
/*
* 图片获取
* $urlImages需要下载的图片数组
*/
function imagesDowner($urlImages){
//print_r($urlImages);
foreach($urlImages as $key=>$value){
$urlImagesOk[$key] = str_replace('//','/',$value);
$urlImagesOk[$key] = str_replace('"','',$urlImagesOk[$key]);
$urlImagesOk[$key] = str_replace("'",'',$urlImagesOk[$key]);
$urlImagesOk[$key] = 'http://'.$urlImagesOk[$key];
if(grabImage($urlImagesOk[$key],basename($urlImagesOk[$key]))){
print_r(
basename($urlImagesOk[$key]).' 文件下载成功
');
}else{
print_r(
basename($urlImagesOk[$key]).' 下载失败
');
}
}
//print_r($urlImagesOk);
}
/*
* 相对路径绝对路径判定函数
* $imageUrl 图片链接数组
* true 为绝对路径
* false 为相当路径
*/
function pathCheck($imageUrl){
if(preg_match('|^(\/)|',$imageUrl)){
return true;
}else{
return false;
}
}
/*
* 图片下载函数
* $url 图片链接
* $filename图片名字
*/
function grabImage($url, $filename){
global $savePath;
if($url == '') {
return false; //如果 $url 为空则返回 false;
}
$ext_name = strrchr($url, '.'); //获取图片的扩展名
if($ext_name != '.gif' && $ext_name != '.jpg' && $ext_name != '.bmp' && $ext_name != '.png') {
return false; //格式不在允许的范围
}
if($filename == '') {
return false; //名称无效
}
//开始捕获
ob_start();
if(readfile($url)){
$img_data = ob_get_contents();
ob_end_clean();
$size = strlen($img_data);
}else{
ob_end_clean();
return false;
}
if(($local_file = fopen($savePath.$filename , 'a'))&&(fwrite($local_file, $img_data)))
{
fclose($local_file);
return true;
}
}
/*
* 保存目录
*/
function getSavePath($savepath){
$savePath = $savepath;
$savePath = dirname(__FILE__).$savePath;
return $savePath;
}
/*
* 解析url
*/
function getParse($host,$type){
$baseurl = parse_url($host);
return $baseurl[$type].'/';
//echo $baseurl;
}
?>
希望本文所述对大家的PHP程序设计有所帮助。

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