Implementation method of saving user avatar to server after WeChat authorization-WeChat Development-php.cn

This article mainly shares with you how to save the user's avatar to the server after WeChat authorization. I recently worked on a project about WeChat authorized login. I won't say much about authorization. I obtained the user's basic information in the following format:

$user_info = '{"openid":"xx","nickname":"nice花椒.","sex":2,"language":"zh_CN","city":"杭州","province":"浙江","country":"中国","headimgurl":"http:\/\/wx.qlogo.cn\/mmopen\/vi_32\/Q0j4TwGTfTJPpziaqOoIpGia9ZVj9fheAwLmTiavV4rxR40NQ1zPQPyiaMY58FEISDIfpn0q5VeeXliaKyiaiabgK2ZHg\/0","privilege":[]}';

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Save headimgurl directly into the database, a bug is coming.

Without further ado, let’s get to the point:

WeChat returns json format

$user_arr = json_decode($user_info, true);

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Get the user’s openid and compare it with the database to determine whether it is the first authorization

$mem_info= $member->getuserinfo(array('openid'=>$user_arr['openid']));

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First authorization or the avatar link address is different from the last time

if(!$mem_info || $mem_info['wximage']!=$user_info['headimg']){ $headimgurl = saveheadimgurl($user_arr['headimgurl']); $headimg ? 0 : $headimg='lib/avata.jpg' ; if($mem_info['wximage']!=$user_info['headimg']){ unlink($mem_info['headimg']); } //快来写你的注册或者修改代码吧！ }

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Save the picture

function saveheadimgurl($headimg){ $header = array( 'User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0', 'Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3', 'Accept-Encoding: gzip, deflate', ); $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $headimg); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); curl_setopt($curl, CURLOPT_HTTPHEADER,$header); $dataimg = curl_exec($curl); $code = curl_getinfo($curl, CURLINFO_HTTP_CODE); curl_close($curl); if ($code == 200) { $imgBase64Code = "data:image/jpeg;base64," . base64_encode($dataimg); } $img_content=$imgBase64Code; if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $img_content, $result)){ $type = $result[2]; create(DOFILESPATH."head"); $new_file = DOFILESPATH."head/".md5(uniqid(rand())).".{$type}"; if (file_put_contents($new_file, base64_decode(str_replace($result[1],'', $img_content)))) { return $new_file; } } return false; }

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Create the file at the specified location

function create($dir){ if(is_dir($dir)){ $temp = explode('/',$dir); $cur_dir = ''; for($i=0; $i
        
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Hope it is useful to everyone.

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