Giphy - Random GIF by Tag

.htaccess

# Will allow to use a .gif extension.
# Script can now be used as www.mydomain.com/pokemon.gif

RewriteEngine on
RewriteRule ^(.*).gif giphy.php?tag=$1 [L,QSA]

giphy.php

<?php

// CONFIGURE
$TAG = $_GET['tag'];
$API_KEY = "dc6zaTOxFJmzC"; // Public BETA Key
$REDIRECT = true; // Should the user be redirected to the gif or should it be tunneled to this page?

// 
// Don't touch from this are unless you know what you do
//

$URL = "http://api.giphy.com/v1/gifs/random?tag=$TAG&api_key=$API_KEY";

// Make URL Request
$response = file_get_contents($URL);
$jsonResponse = json_decode($response, true);

$gifURL = $jsonResponse["data"]["image_original_url"];

if ($REDIRECT) {
	header("Location: $gifURL");	
} else {
	header("Content-Type: image/gif");
	$gifContent = file_get_contents($gifURL);
	echo $gifContent;
}