PHP :: Web service to clean and deploy a repository to which it belongs on a server through a webhook

clean_deploy.php

<?php
    //Deploy the current version from master branch of the project
    $document_root = "<repository_root_folder>";

    echo "Clean untracked files on server:";
    $output = shell_exec("git clean -d --force $document_root 2>&1");
    echo "<pre>$output</pre>";

    echo "Revert modified files (not staged) on server...";
    $output = shell_exec("git checkout -- $document_root 2>&1");
    echo "<pre>$output</pre>";

    echo "Pull the existent new commits from origin on server:";
    $output = shell_exec("git pull 2>&1");
    echo "<pre>$output</pre>";
?>