PHP CURL implements remote downloading of files to local

PHP CURL implements remote downloading of files to local_PHP tutorial

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Release： 2016-07-13 09:55:29

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PHP CURL implements remote downloading of files to the local place

PHP CURL implements remote downloading of files to the local area. The result returned by this function includes the time taken to download, the saved file name, and the usage download method. The writing is relatively rough. If you have good suggestions and improvement plans, please leave a message to me!

The specific code is as follows:

<?php

//$result=httpcopy('http://www.phpernote.com/image/logo.gif');

echo '<pre class="brush:php;toolbar:false">';print_r($result);

function httpcopy($url,$file='',$timeout=60){
    $file=empty($file)?pathinfo($url,PATHINFO_BASENAME):$file;
    $dir=pathinfo($file,PATHINFO_DIRNAME);
    !is_dir($dir)&&@mkdir($dir,0755,true);
    $url=str_replace(' ',"%20",$url);
	$result=array('fileName'=>'','way'=>'','size'=>0,'spendTime'=>0);
	$startTime=explode(' ',microtime());
	$startTime=(float)$startTime[0]+(float)$startTime[1];
    if(function_exists('curl_init')){
        $ch=curl_init();
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_TIMEOUT,$timeout);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
        $temp=curl_exec($ch);
        if(@file_put_contents($file,$temp)&&!curl_error($ch)){
			$result['fileName']=$file;
			$result['way']='curl';
			$result['size']=sprintf('%.3f',strlen($temp)/1024);
        }
    }else{
        $opts=array(
            'http'=>array(
            'method'=>'GET',
            'header'=>'',
            'timeout'=>$timeout
			)
        );
        $context=stream_context_create($opts);
        if(@copy($url,$file,$context)){
            $result['fileName']=$file;
			$result['way']='copy';
			$result['size']=sprintf('%.3f',strlen($context)/1024);
        }
    }
	$endTime=explode(' ',microtime());
	$endTime=(float)$endTime[0]+(float)$endTime[1];
	$result['spendTime']=round($endTime-$startTime)*1000;//单位：毫秒
	return $result;
}

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