PHP || JS || JQ 解决远程图片下载（图片地址没有精准的后缀）

Question

good morning 大佬们~
1.图片地址:http://aimg8.oss-cn-shanghai.aliyuncs.com/crm_code_img/qrcode?t=10804154
2.代码模块PHP实现只能保存一个临时文件夹然后去下载文件。
3.哪位大神可以耐心解答或者给出解决方案。

Answer 1

这是我测试成功之后的，下载后的文件我默认在和你代码运行的地方同一级，记得给你要写入图片的目录写入权限

<?php
function test()
{
    $url = 'http://aimg8.oss-cn-shanghai.aliyuncs.com/crm_code_img/qrcode?t=10804154';

    $header = array("Connection: Keep-Alive", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Pragma: no-cache", "Accept-Language: zh-Hans-CN,zh-Hans;q=0.8,en-US;q=0.5,en;q=0.3", "User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:29.0) Gecko/20100101 Firefox/29.0");

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

    curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');

    $content = curl_exec($ch);

    $curlinfo = curl_getinfo($ch);

    //关闭连接

    curl_close($ch);

    if ($curlinfo['http_code'] == 200) {

        if ($curlinfo['content_type'] == 'image/jpeg') {

            $exf = '.jpg';

        } else if ($curlinfo['content_type'] == 'image/png') {

            $exf = '.png';

        } else if ($curlinfo['content_type'] == 'image/gif') {

            $exf = '.gif';

        }

        $filename = date("Y-m-d") . uniqid() . $exf;//这里默认是当前文件夹，可以加路径的 可以改为$filepath = '../'.$filename

        $res = file_put_contents($filename, $content);//同样这里就可以改为$res = file_put_contents($filepath, $content);

    }

}

test();
?>