Requirements: After downloading the network file to the local, package it into a zip file and download it to the client
During the test, I used the image address from Baidu, and everything went well. When I put it on the online test, an error was reported: function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.0 400 Bad request
Baidu found that it may be that the server has restrictions on non-browser access and needs to be modified php.ini configuration: user_agent="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)" or add directly before file_get_contents: ini_set('user_agent',"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) ”); An
error is reported after the modification, but the file can be downloaded, but it is wrong and cannot be opened.
In the background, it may be a file name encoding problem, because there are Chinese in the file, and the file function of php needs to be transcoded when operating a file with a Chinese name. The entire code is as follows
function dlfile($file_url, $save_to)
{
$file_url=iconv('utf-8','GBK',$file_url);//此处一定要使用GBK，而不是gb2312。因为gb2312只支持部分汉字，遇到繁体字或者生僻字时，就会转移失败，切记，避免入坑T_T都是类
$content = file_get_contents($file_url);
file_put_contents($save_to, $content);
}
//多文件打包
$dir = dirname(__FILE__);
$file_arr = [];
$fileList = array(
"http://111.111.111/222/0000003812/王3152153.pdf",
);
foreach($fileList as $v){
$ext = substr($v,strrpos($v,'.'));
$file_name = time().rand('9999','1000000').$ext;
$file_path = 'temp/'.$file_name;
$file_arr[] = $file_name;
dlfile($v,$file_path);
}
$filename = "test.zip";
$zip = new ZipArchive();
$zip->open($filename,ZipArchive::CREATE); //打开压缩包
foreach($file_arr as $file){
$zip->addFile($dir.'/temp/'.$file,$file); //向压缩包中添加文件
}
$zip->close();
The above downloading process is to convert the Chinese name file to be downloaded into a string, and there will be no problem in downloading it to zip afterwards. But sometimes, we need to keep the Chinese name of the file, so the code needs to be modified a little, as follows
//文件打包
$dir = dirname(__FILE__);
$file_arr = [];
$fileList = array(
"http://111.111.111/222/0000003812/王3152153.pdf",
"http://111.111.111/222/0000003812/李3152153.pdf",
);
foreach($fileList as $v){
$file_name = substr($v,strrpos($v,'/'+1));//保留文件的中文名
$file_path = 'temp/'.$file_name;
$file_path = iconv('utf-8','GBK',$file_path);//修改要保存文件的编码，win平台下需要该步骤。linux平台下不需要，因为linux平台编码默认为utf-8,与编辑器一直
$file_arr[] = $file_name;
dlfile($v,$file_path);
}
//中文名文件是无法直接添加到zip包中的，这里需要曲线救国
//第1步，先把下载到本地的文件改为英文字符串名，并建立中文名与英文名的对应关系数组
//第2步，把文件插入到zip包中
//第3步，使用zip类的更名函数，根据文件名对应关系数组，把文件名修改过来
//第4步，大功告成。如果你想把本地文件修改回中文名，一定要在close之后进行，否则zip会找不到文件
$filename = "test.zip";
$zip = new ZipArchive();
$zip->open($filename,ZipArchive::CREATE); //打开压缩包
$file_r_name = [];//文件名对应关系数组
foreach($file_arr as $v){
$ext = substr($v,strrpos($v,'.'));
$new_name = time().substr(str_shuffle('abcdefghijklmnopqrstuvwxyz'),0,10).rand(1000,100000).$ext;
rename(iconv('utf-8','gb2312',ROOT_PATH.'public_html/baogao/'.$v),ROOT_PATH.'public_html/baogao/'.$new_name);
$file_r_name[] = ['new_name'=>$new_name,'name'=>$v];
//win平台下使用该步骤，linux下不需要要iconv，理由同上
}
$os_name=PHP_OS;//获取操作系统名称
foreach($file_r_name as $val){
$zip->addFile(THINK_PATH.'../public_html/baogao/'.$val['new_name'],$val['new_name']); //向压缩包中添加文件
//修改压缩包中文件名修改为中文名
if(strpos($os_name,"Linux")!==false){
$zip->renameName($val['new_name'] , $val['name']);
}elseif(strpos($os_name,"WIN")!==false){
$zip->renameName($val['new_name'] , iconv('utf-8','GBK',$val['name']));
}
}
$zip->close();
header('Location: http://www.kd.com/baogao/'.$filename);
exit;