How to save network images in php (code)

The content of this article is about how to save network images (code) in PHP. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

function file_exists_S3($url)
{    
$state = @file_get_contents($url,0,null,0,1);//获取网络资源的字符内容
    if($state){        
    $filename = date("dMYHis").'.jpg';//文件名称生成
        ob_start();//打开输出
        readfile($url);//输出图片文件
        $img = ob_get_contents();//得到浏览器输出
        ob_end_clean();//清除输出并关闭
        $size = strlen($img);//得到图片大小
        $fp2 = @fopen($filename, "a");        
        fwrite($fp2, $img);//向当前目录写入图片文件，并重新命名
        fclose($fp2);        
        return 1;
    } else{        
           return 0;
           }
    }

Note: $filename can be rewritten to the path you need

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