-
-
/**
- * 远程图片的下载
- * by bbs.it-home.org
- */
- header("Content-type:text/html ; charset=utf-8");
-
- if (!empty($_POST['submit'])){
- $url = $_POST['url'];
- $pictureName = $_POST['pictureName'];
- $img = getPicture($url,$pictureName);
- echo '
<img src="'.$img.'" alt="php gd库实现远程图片的下载 " > 登录后复制
- }
- function getPicture($url,$pictureName){
- if ($url == "") return false;
- //获取图片的扩展名
- $info = getimagesize($url);
- $mime = $info['mime'];
- $type = substr(strrchr($mime,'/'), 1);
- //不同的图片类型选择不同的图片生成和保存函数
- switch($type){
- case 'jpeg':
- $img_create_func = 'imagecreatefromjpeg';
- $img_save_func = 'imagejpeg';
- $new_img_ext = 'jpg';
- break;
- case 'png':
- $img_create_func = 'imagecreatefrompng';
- $img_save_func = 'imagepng';
- $new_img_ext = 'png';
- break;
- case 'bmp':
- $img_create_func = 'imagecreatefrombmp';
- $img_save_func = 'imagebmp';
- $new_img_ext = 'bmp';
- break;
- case 'gif':
- $img_create_func = 'imagecreatefromgif';
- $img_save_func = 'imagegif';
- $new_img_ext = 'gif';
- break;
- case 'vnd.wap.wbmp':
- $img_create_func = 'imagecreatefromwbmp';
- $img_save_func = 'imagewbmp';
- $new_img_ext = 'bmp';
- break;
- case 'xbm':
- $img_create_func = 'imagecreatefromxbm';
- $img_save_func = 'imagexbm';
- $new_img_ext = 'xbm';
- break;
- default:
- $img_create_func = 'imagecreatefromjpeg';
- $img_save_func = 'imagejpeg';
- $new_img_ext = 'jpg';
- }
- if ($pictureName == ""){
- $pictureName = time().".{$new_img_ext}";
- }else{
- $pictureName = $pictureName.".{$new_img_ext}";
- }
- $src_im = $img_create_func($url); //由url创建新图片
- $img_save_func($src_im, $pictureName); //输出文件到文件
- return $pictureName;
- }
- ?>
2，网页内容部分
运行结果如下图：（图片自动保存在当前文件目录）
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