How to get remote image downloads and save them locally in php

Share a function code that uses PHP to obtain remote images and download and save remote images locally. I hope this little trick can come in handy.

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

The above code is how PHP obtains remote images and downloads them and saves them locally. I hope it will be useful to everyone.

Related recommendations:

php implements an efficient method to obtain the size and size of remote images

php development example for downloading remote images to local Share

php to download remote pictures and save them locally

The above is the detailed content of How to get remote image downloads and save them locally in php. For more information, please follow other related articles on the PHP Chinese website!