PHP post share not accepting parameters. Same file working on different hosting

Community support
#1

Here the php i’m using:

<?php
$score = $_GET["score"];
$scorex = explode(":", $score);
$highscore = $scorex[0];
?>
<html>
<head>
<title>Ninja PigX HighScore</title>
<meta property="og:title" content="My Highscore on Ninja PigX is <?echo $highscore;?>!"/>
<meta property="og:image" content="http://c2gameseb.000webhostapp.com/iconwebpage250250.png"/>
<meta property="og:site_name" content="MySource Game Studio"/>
<meta property="og:description" content="<?echo $highscore;?> is my new highscore on NinjaPigX! How far do you think you can get? Try it for free on your Android!"/>	
</head>
<body>
<meta http-equiv="refresh" content="0;URL=https://play.google.com/store/apps/details?id=mysource.ninjapig" />
</body>
</html>
<?php exit; ?>

This file is being called from a browser with while adding a number for a highscore:

https://www.facebook.com/sharer/sharer.php?u=http://c2gameseb.000webhostapp.com/NinjaPigHighscore.php?score="&WebStorage.LocalValue("globalHighscore")

It works from a hostgator server, but not from the 000webhost. It doesn’t seem to accept the parameter for the highscore which lets me to believe that the server simply doesn’t accept php posts.

Any clarity on this?