php 通过cURL函数抓取网页、下载网页的简单示例

PHP通过cURL函数抓取和下载网页，感兴趣的小伙伴，下面一起跟随编程之家 jb51.cc的小编来看看吧。
经测试代码如下：

/**
 * 通过cURL函数抓取和下载网页
 *
 * @param 
 * @arrange (编程之家) jb51.cc
 **/
function curl_download($Url){
 
    // is cURL installed yet?
    if (!function_exists('curl_init')){
        die('Sorry cURL is not installed!');
    }
 
    // OK cool - then let's create a new cURL resource handle
    $ch = curl_init();
 
    // Now set some options (most are optional)
 
    // Set URL to download
    curl_setopt($ch,CURLOPT_URL,$Url);
 
    // Set a referer
    curl_setopt($ch,CURLOPT_REFERER,http://www.example.org/yay.htm);
 
    // User agent
    curl_setopt($ch,CURLOPT_USERAGENT,MozillaXYZ/1.0);
 
    // Include header in result? (0 = yes,1 = no)
    curl_setopt($ch,CURLOPT_HEADER,0);
 
    // Should cURL return or print out the data? (true = return,false = print)
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
 
    // Timeout in seconds
    curl_setopt($ch,CURLOPT_TIMEOUT,10);
 
    // Download the given URL,and return output
    $output = curl_exec($ch);
 
    // Close the cURL resource,and free system resources
    curl_close($ch);
 
    return $output;
}

//使用范例：
print curl_download('http://www.example.org/');


/***   来自编程之家 jb51.cc（jb51.cc）   ***/