If the files your accessing are on the same server as the calling file then you might as well use include();
like @user574632's answer.
But if not, to keep the session you will need to handle the cookies the server sends;
Sessions are cookie based, server sets the session cookie your browser picks it up and uses it for all subsequent requests.
By default file_get_contents
wont handle cookies, so your need to grab the header from the server by accessing $http_response_header
array and then match with regex the Set-Cookie:
header then store that and on following requests use the cookie and create a stream context with the cookie added to the header and pass that to fgc:
<?php
function get_cookies() {
//check cookies folder - or make it
if(!file_exists('./cookies/')){
mkdir('./cookies/', 0755, true);
}
$return = null;
foreach(glob("./cookies/*.txt") as $file) {
$return .= file_get_contents($file).';';
}
return $return;
}
function save_cookies($http_response_header) {
print_r($http_response_header);
foreach($http_response_header as $header) {
if(substr($header, 0, 10) == 'Set-Cookie'){
if(preg_match('@Set-Cookie: (([^=]+)=[^;]+)@i', $header, $matches)) {
$fp = fopen('./cookies/'.$matches[2].'.txt', 'w');
fwrite($fp, $matches[1]);
fclose($fp);
}
}
}
}
$opts = array('http' =>
array('header'=>'Cookie: '.get_cookies()."
")
);
$context = stream_context_create($opts);
$contents = file_get_contents('http://mywebsite.com/snippets/', false, $context);
save_cookies($http_response_header);
echo $contents;
?>
Alternatively you should use curl instead its faster and handles cookies fine.
So something like the following, use curl and then revert to fgc if curl is not present, all wrapped up with cookie support in a class, so the 3 functions are contained:
<?php
//example usage
echo new curl_get_contents('http://example.com/page_that_needs_sessions');
class curl_get_contents{
public $result;
function __construct($url){
$this->curl_rev_fgc($url);
}
function __toString(){
return $this->result;
}
private function get_cookies() {
$return = null;
foreach(glob("./cookies/*.txt") as $file) {
$return .= file_get_contents($file).';';
}
return $return;
}
private function save_cookies($http_response_header) {
foreach($http_response_header as $header) {
if(substr($header, 0, 10) == 'Set-Cookie'){
if(preg_match('@Set-Cookie: (([^=]+)=[^;]+)@i', $header, $matches)) {
$fp = fopen('./'.$matches[2].'.txt', 'w');
fwrite($fp, $matches[1]);
fclose($fp);
}
}
}
}
private function curl_rev_fgc($url){
//check cookies folder - or make it
if(!file_exists('./cookies')){
mkdir('./cookies/', 0755, true);
}
$usragent = 'Mozilla/5.0 (compatible; Yourbot/0.1; +https://yoursite/bot.html)';
//Check curl is installed or revert to file_get_contents()
$curl = function_exists('curl_init') ? true : false;
if($curl){
$opts = array(
'http' => array(
'method' => "GET",
'header' => 'Cookie: '.$this->get_cookies().'
', // cookie in fgc support
'user_agent' => $usragent)
);
$context = stream_context_create($opts);
$result = @file_get_contents($url, false, $context);
$this->save_cookies($http_response_header);
if(empty($result)){
$this->result = 'Error fetching: '.htmlentities($url);
}else{
$this->result = $result;
}
return;
}
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_TIMEOUT, 60);
curl_setopt($curl, CURLOPT_USERAGENT, $usragent);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_ENCODING, 'gzip,deflate');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
if(!file_exists('./cookies/curl.txt')){
file_put_contents('./cookies/curl.txt',null);
}
curl_setopt($curl, CURLOPT_COOKIEFILE, './cookies/curl.txt');
curl_setopt($curl, CURLOPT_COOKIEJAR, './cookies/curl.txt');
$result = curl_exec($curl);
if(empty($result)){
$this->result = 'Error fetching: '.htmlentities($url);
}else{
$this->result = $result;
}
curl_close($curl);
return;
}
}
?>