What should I do if the php downloaded image cannot be opened?

Solution to the problem that php downloaded pictures cannot be opened: 1. Set the "file_put_contents('E:/img/xxx.jpeg',$img);" code statement; 2. Add "curl_setopt($ ci,...)" statement is enough.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

php What should I do if the downloaded image cannot be opened?

Solve the problem that PHP curl or file_get_contents downloaded pictures are damaged or cannot be opened

Get and grab remote pictures through curl or file_get_contents and save them locally, but the damage is found There are many pictures. For example, you can access the pictures when you visit

https://fuss10.elemecdn.com/c/6c/69a7740b4ab864ac0639eb583d68fjpeg.jpeg

, but when curling or file_get_contents, the pictures are downloaded but damaged.

The reason is that the pictures are gizp

Solution one:

 $url = 'https://fuss10.elemecdn.com/c/6c/69a7740b4ab864ac0639eb583d68fjpeg.jpeg';
 $img = file_get_contents("compress.zlib://".$url);
 $data = file_put_contents('E:/img/aaaaaaaaaaaa.jpeg',$img);

Solution two:

Add in curl This code

curl_setopt($ci, CURLOPT_ENCODING,'gzip');

Related introduction:

PHP cURL function

PHP supports the libcurl library created by Daniel Stenberg that allows you to use various types of protocol for connection and communication.

libcurl currently supports http, https, ftp, gopher, telnet, dict, file and ldap protocols. libcurl also supports HTTPS authentication, HTTP POST, HTTP PUT, FTP upload (this can also be completed through PHP's FTP extension), HTTP form-based upload, proxy, cookies and username and password authentication.

How to use cURL to implement Get and Post requests in PHP

These functions were introduced in PHP 4.0.2.

Installation

To use PHP's cURL support you must add the --with-curl[=DIR] option when compiling PHP. DIR is the directory path containing lib and include. There must be a folder named curl that contains easy.h and curl.h in the include directory. There should be a file named libcurl.a in the lib folder. For PHP 4.3.0 you can configure --with-curlwrappers to make cURL use URL streams.

Note: Win32 users note that to use this module in a Windows environment, libeay32.dll and ssleay32.dll must be placed in the directory included in the PATH environment variable. Do not use libcurl.dll from the cURL website.

Recommended learning: "PHP Video Tutorial"

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