PHP download pictures remotely to local, _PHP tutorial-PHP Tutorial-php.cn

PHP download pictures remotely to local, _PHP tutorial

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Release： 2016-07-12 09:00:22

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php remotely downloads pictures to local,

Hello everyone, starting from today, I started to write a blog and record the solutions to the problems I encountered at work. It will be convenient for future searches, and it will also be convenient for others. I am not very talented. It is my first time to write a blog. Please point out any shortcomings. Thank you!

What I will record today is how to remotely download images to a local computer through PHP. Without further ado, let’s get into the code.

<?php<br />/*<br />*功能：php完美实现下载远程图片保存到本地<br />*参数：文件url,保存文件目录,保存文件名称，使用的下载方式<br />*当保存文件名称为空时则使用远程文件原来的名称<br />*/<br />function getImage($url,$save_dir='',$filename='',$type=0){<br />    if(trim($url)==''){<br />        return array('file_name'=>'','save_path'=>'','error'=>1);<br />    }<br />    if(trim($save_dir)==''){<br />        $save_dir='./';<br />    }<br />    if(trim($filename)==''){//保存文件名<br />        $ext=strrchr($url,'.');<br />        if($ext!='.gif'&&$ext!='.jpg'){<br />            return array('file_name'=>'','save_path'=>'','error'=>3);<br />        }<br />        $filename=time().$ext;<br />    }<br />    if(0!==strrpos($save_dir,'/')){<br />        $save_dir.='/';<br />    }<br />    //创建保存目录<br />    if(!file_exists($save_dir)&&!mkdir($save_dir,0777,true)){<br />        return array('file_name'=>'','save_path'=>'','error'=>5);<br />    }<br />    //获取远程文件所采用的方法<br />    if($type){<br />        $ch=curl_init();<br />        $timeout=5;<br />        curl_setopt($ch,CURLOPT_URL,$url);<br />        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);<br />        curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);<br />        $img=curl_exec($ch);<br />        curl_close($ch);<br />    }else{<br />        ob_start();<br />        readfile($url);<br />        $img=ob_get_contents();<br />        ob_end_clean();<br />    }<br />    //$size=strlen($img);<br />    //文件大小<br />    $fp2=@fopen($save_dir.$filename,'a');<br />    fwrite($fp2,$img);<br />    fclose($fp2);<br />    unset($img,$url);<br />    return array('file_name'=>$filename,'save_path'=>$save_dir.$filename,'error'=>0);<br />}<br />?><br />然后直接调用函数就可以把图片下载到本地

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$img = getImage("$url","images/");

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