Deploy script for php

deploy.php

<?php
$directory = '/var/www/ci.maartendev.me/';
if(isset($_GET['key']) && $_GET['key'] == 'c3fd698fb41a45secure6b66644d9445duji'){
        $gitCommands= [
                "git -C {$directory} pull",
                "composer install -d {$directory}"
        ];

        foreach($gitCommands as $command){
                echo shell_exec($command) . "\n";
        }
}else{
	echo "error logged\n";
}