javascript - How to make request from php to my server so I can get html content

I m working on open source project (Tao test assestment). In this application you can make some item/question and you can preview that question. With those questions you can build your test, but problem is there is no test preview or print test.

I m trying to find a way to do this. One of my solution was to take all the items from test make a loop and each one of them call in iframe then combine them in one view. That did not work of course.

My question is. Is there some possibility to make request to my own server from php code to get html content and from php code to combine them in one view ?

I saw some functions like @file_get_contents but this returns me false. In php.ini file this are my configuration

allow_url_fopen = On allow_url_include = Off

EDIT: So this is preview of one item/question.

EDIT: One test is consisted of items and problem is there is no option to preview them, except click on each one and see them. So i tried with opening each item/question in seperate iframe so i can see them all in one.

Solution:

If the file is on the same server, i.e. in the same location where PHP is installed:

<?php
 $filename = "path_to_file";
 $file = fopen( $filename, "r" );
 
 if( $file == false ) {
    echo ( "Error in opening file" );
    exit();
 }
 
 $filesize = filesize( $filename );
 $filetext = fread( $file, $filesize );
 fclose( $file );
 
 echo ( "File size : $filesize bytes" );
 echo ( "<pre>$filetext</pre>" );
?>

<?php
include "path_to_file.php"
?>

<?php
$ch = curl_init();
$timeout = 5; // set to zero for no timeout
curl_setopt ($ch, CURLOPT_URL, 'http://server.com/path_to_file');
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);

// display file
echo $file_contents;
?>