Pastable version of Universal File Download Class

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 <pre class="sunburst">&lt;?php

class RequestFile
{
 public $StatusLogOn = FALSE; //turn logging on/off (TRUE/FALSE)
 
 //tries different methods for retrieving a url as 
 //each hosting company tends to screw this up in one way or another
 //it logs the successful one in the db for use next time
 public function get_file($url)
 {
 //attempt the standard file_get_contents 
 $data = $this-&gt;cc_file_get_contents($url); 
 
 //if that didn't work try curl
 if(!$data)
 {
 $data = $this-&gt;cc_curl_file($url); 
 }
 
 //if that didn't work try a socket
 if(!$data)
 {
 $data = $this-&gt;cc_socket_file($url); 
 }
 
 //if all else fails we can try wget (assuming we're on linux)
 if(!$data)
 {
 $data = $this-&gt;cc_wget_file($url); 
 }
 
 return $data;
 }
 
 //minor modification to file_get_contents to log if it worked or not
 //note this or (fopen) will not work if allow_url_fopen = 0 in php.ini
 public function cc_file_get_contents($url)
 {
 if($data = file_get_contents($url))
 {
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' SUCCESS: Data Has Been Downloaded Using file_get_contents');
 return $data;
 }
 else
 { 
 if (ini_get('allow_url_fopen') != '1') 
 {
 $msg = &quot;fopen wrappers are disabled&quot;;
 }
 
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' FAIL: '.$msg);
 
 return FALSE; 
 }
 }
 
 //try and use curl
 public function cc_curl_file($url)
 {
 // make sure curl is installed
 if (function_exists('curl_init')) 
 {
 $ch = curl_init(); //initialize a new curl resource 
 curl_setopt($ch, CURLOPT_URL, $url); //set the url to fetch
 curl_setopt($ch, CURLOPT_HEADER, 0); //don't give me the headers just the content
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //return the value instead of printing the response to browser
 curl_setopt($ch, CURLOPT_USERAGENT, $this-&gt;rand_user_agent()); //use a user agent to mimic a browser 
 $data = curl_exec($ch); //run the command
 curl_close($ch); //remember to always close the session and free all resources
 
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' SUCCESS: Data Has Been Downloaded Using CURL');
 return $data;
 } 
 else
 {
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' FAIL: CURL is not installed');
 return FALSE;
 } 
 }
 
 //try and use sockets - this code is untested
 public function cc_socket_file($url)
 {
 $parsedUrl = parse_url($url); //get the host name and url path
 
 $host = $parsedUrl['host'];
 
 if(isset($parsedUrl['path'])) 
 {
 $path = $parsedUrl['path'];
 } 
 else 
 {
 $path = '/'; //the url is pointing to the host like http://www.mysite.com
 }
 
 if (isset($parsedUrl['query'])) 
 {
 $path .= '?'.$parsedUrl['query'];
 }
 
 if (isset($parsedUrl['port'])) 
 {
 $port = $parsedUrl['port'];
 } 
 else 
 {
 $port = '80'; //most sites use port 80
 }
 
 $timeout = 10;
 $response = '';
 
 $fp = @fsockopen($host, '80', $errno, $errstr, $timeout); //connect to the remote server
 
 if(!$fp) 
 {
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' FAIL: Socket Failed Cannot Retrieve '.$url);
 return FALSE;
 } 
 else 
 {
 //send the necessary headers to get the file
 fputs($fp, &quot;GET $path HTTP/1.0\r\n&quot; .
 &quot;Host: $host\r\n&quot; .
 &quot;User-Agent: &quot;.$this-&gt;rand_user_agent().&quot;\r\n&quot; .
 &quot;Accept: */*\r\n&quot; .
 &quot;Accept-Language: en-us,en;q=0.5\r\n&quot; .
 &quot;Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n&quot; .
 &quot;Keep-Alive: 300\r\n&quot; .
 &quot;Connection: keep-alive\r\n&quot; .
 &quot;Referer: http://$host\r\n\r\n&quot;);
 
 //retrieve the response from the remote server
 while($line = fread($fp, 4096)) 
 {
 $response .= $line;
 }
 
 fclose($fp);
 
 //strip the headers
 $pos = strpos($response, &quot;\r\n\r\n&quot;);
 $response = substr($response, $pos + 4);
 }
 
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' SUCCESS: Data Has Been Downloaded Via A Socket Connection');
 return $response; 
 }
 
 //try and use wget if on linux
 public function cc_wget_file($url)
 {
 $cmd = &quot;wget '&quot;.$url.&quot;'&quot;;
 exec($cmd);
 
 if($data = file_get_contents(&quot;broadcast&quot;)) //the file gets saved as file simply called broadcast
 {
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' SUCCESS: File Downloaded Using wget');
 return $data;
 }
 else
 {
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' FAILED: Data Could not be retrieved using wget and file_get_contents');
 return FALSE;
 } 
 }
 
 //select an random user agent from the db
 public function rand_user_agent()
 {
 $sql = &quot;SELECT * FROM cc_user_agents ORDER BY rand()&quot;; 
 
 //code to get a record from the database goes here
 
 if($row === FALSE || !$row[0])
 {
 $this-&gt;log_status(date(&quot;H:i:s d-m-Y&quot;).' FAIL: Could Not Retrieve Random User Agent - Using Default');
 return &quot;Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3&quot;;
 }
 else
 {
 return $row[0];
 }
 }
 
 //log status to a file
 public function log_status($msg)
 {
 if($this-&gt;StatusLogOn === TRUE)
 {
 $path = &quot;RequestFile.status.log&quot;;
 $data = file_get_contents($path);
 $data .= &quot;\n&quot;.$msg;
 file_put_contents($data, $path);
 }
 
 return TRUE;
 }
}

?&gt;
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Pastable version of Universal File Download Class