关于直接采集远程机器图片之后再下载到我们本地其实非常的简单,我们通常会使用fopen 与 file_put_contents 或者高级点的curl来实现,下面我整理了几个比较好用的图片下载到本地例子,大家一起看看.
对于没有防盗链的图片,代码如下:
<?php
/*
* 对于没有防盗链的图片
* url 图片地址
*filename 图片保存地址
* return 返回下载的图片路径和名称,图片大小
*/
function GrabImage(url,filepath, filename = "") {
if (url == "") return false;
ext = strrchr(url, ".");
if (filename == "") {
if (ext != ".gif" && ext != ".jpg" &&ext != ".png") return false;
filename = date("YmdHis");
}
ob_start();
readfile(url);
img = ob_get_contents();
ob_end_clean();size = strlen(img); // 图片大小
!is_dir(getcwd() .filepath) ? mkdir(getcwd() . filepath) : null; //生成文件夹fp2 = fopen(getcwd() . filepath .filename . ext, "a");
fwrite(fp2, img);
fclose(fp2);
return array(
filepath .filename . ext,size
);
}有防盗链的图片, 代码如下:
/*
* 有防盗链的图片
* url 图片地址
*filename 图片保存地址
* return 返回下载的图片路径和名称,图片大小
* fromurl 来源URL，填写来源图片网址可破解防盗链
*/
function GrabImage2(url, filepath,filename = "", fromurl) {
if (url == "") return false;
ext = strrchr(url, ".");
if (filename == "") {
if (ext != ".gif" && ext != ".jpg" &&ext != ".png") return false;
filename = date("YmdHis");
}
!is_dir(getcwd() .filepath) ? mkdir(getcwd() . filepath) : null; //生成文件夹re = this->curlg(url, fromurl);size = file_put_contents(getcwd() . filepath .filename . ext,re); //返回大小
return array(
filepath .filename . ext,size
);
}批量采集代码:
/**
* 批量下载图片
*/
public function downimg() {
keep =this->_get("keep"); //1从缓存获取2删除缓存/重新缓存
id =this->_get("id");
id =id ? id : 0;nextid = id + 1;
if (keep != 1) {
data = M('Cjlist')->where("status=1")->select();
S("keepcjdata",data, 3600);
} else {
data = S("keepcjdata");
}endid = count(data);
//echoid;
//echo endid;
if (endid == id) {
exit('所有图片下载完成！');
}
//echoendid;
data2['cover_imgurl'] =this->imgdown2(data[id]['cover_imgurl']);
//echo data[id]['thum_url'];
data2['thum_url'] =this->imgdown2(data[id]['thum_url'], 'thum_'); //中型图片type
data2['id'] =data[id]['id'];
if (!data2['thum_url'] || !data2['cover_imgurl']) {data2['status'] = - 1;
} else {
data2['status'] = 2;
}res = M('Cjlist')->save(data2);
//this->echosql();
if (res) {
echo '下载完成ID:' .data2['id'] . " 前往下一个ID下载<script>window.location.href='" . U('Index/downimg') . "/keep/1/id/" . nextid . "'</script>";
} else {
echo '保存出错，正在重试刷新。<script>window.location.reload()</script>';
}
//dump(data2);
//dump($data);
}同时还可以生成缩略图, 代码如下:
/*
*图片采集保存本地生成缩略图
*
* */
public function imgdown(picurl = 'http://p0.so.qhimg.com/t0129f40df5810dfaa5.jpg',fromurl = 'http://image.so.com') {
mulu = "/" . date("YmdH", time()) . "/";reimg = this->GrabImage2(picurl, mulu, time() ,fromurl);
//img = file_get_contents(picurl);
//echo file_put_contents('222.jpg',img);
//exit;
//reimg="/20140529/1401333398.jpg";
//dump(reimg);
//exit;
if (reimg[1] <= 0) {
exit("下载图片失败");
}
reimg =reimg[0];
import('ORG.Util.Image');
Image = new Image();imgurl = getcwd() . reimg;ext = strrchr(imgurl, ".");thum_name = Image->thumb(imgurl, "thum_" . time() . ext, '', '288', '432');
rename(getcwd() . "/" .thum_name, getcwd() . mulu .thum_name); //移动到文件夹里面
imginfo =Image->getImageInfo(getcwd() . mulu .thum_name);
//dump(imginfo);//开源代码phprm.comimgarr['cover_url'] = reimg;imgarr['thum_url'] = mulu .thum_name;
imgarr['thum_w'] =imginfo['width'];
imgarr['thum_h'] =imginfo['height'];
return $imgarr;
}
