CURL is not working to send GET request in php - php

Question

I am using CURL to send get request to a server, but it is not producing the required output.
The script works fine when loaded in browser.
It is script which combines given PNG images to GIF.
<?php
//generate GIF
$name = $_GET['name_of_final_gif'];
$images = $_GET['images'];
$images = json_decode($images, true);
//include GIF maker class based on GD library
include('GIFEncoder.class.php');
/******************************************************/
foreach($images as $image_link) {
// Open the source image and add the text.
$image = imagecreatefrompng($image_link);
// Generate GIF from the $image
// We want to put the binary GIF data into an array to be used later,
// so we use the output buffer.
ob_start();
imagegif($image);
$frames[]=ob_get_contents();
$framed[]=300; // Delay in the animation.
ob_end_clean();
}
// Generate the animated gif and save it
$gif = new GIFEncoder($frames,$framed,0,2,0,0,0,'bin');
$fp = fopen("gifs/$name", 'w');
fwrite($fp, $gif->GetAnimation());
fclose($fp);
?>
Update:
Below is my CURL code which is on another server and is sending GET request to this script which is hosted on another server:
$images = $class_name->get_images_links(); // get image links from database in JSON FORMAT
$name = "something.gif"; //name for output GIF image
$url = "http://example.com/make_gif.php?images=$images&&name_of_final_gif=$name";
// Get cURL resource
$curl = curl_init();
// Set some options
curl_setopt_array($curl, array(
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => $url
));
// Send the request & save response to $resp
$resp = curl_exec($curl);
// Close request to clear up some resources
curl_close($curl);

Answer 1

Try this
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://example.com/make_gif.php?images=$images&&name_of_final_gif=$name");
curl_exec($ch);
curl_close($ch);

Answer 2

Try this:
function curl($url) {
// Assigning cURL options to an array
$options = Array(
CURLOPT_RETURNTRANSFER => TRUE, // Setting cURL's option to return the webpage data
CURLOPT_FOLLOWLOCATION => TRUE, // Setting cURL to follow 'location' HTTP headers
CURLOPT_AUTOREFERER => TRUE, // Automatically set the referer where following 'location' HTTP headers
CURLOPT_TIMEOUT => 120, // Setting the maximum amount of time for cURL to execute queries
CURLOPT_MAXREDIRS => 10, // Setting the maximum number of redirections to follow
CURLOPT_USERAGENT => "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1a2pre) Gecko/2008073000 Shredder/3.0a2pre ThunderBrowse/3.2.1.8", // Setting the useragent
CURLOPT_URL => $url, // Setting cURL's URL option with the $url variable passed into the function
);
$ch = curl_init(); // Initialising cURL
curl_setopt_array($ch, $options); // Setting cURL's options using the previously assigned array data in $options
$data = curl_exec($ch); // Executing the cURL request and assigning the returned data to the $data variable
curl_close($ch); // Closing cURL
return $data; // Returning the data from the function
}
$page = curl($link);