Upload.php

<?php
define("UPLOAD_DIR", "/var/www/lifecycle/tmp");

if (!empty($_FILES["usrFile"])) {
    $usrFile = $_FILES["usrFile"];


    //check for errors
    if ($usrFile["error"] !== UPLOAD_ERR_OK) {
        echo "<p>An error occurred.</p>";
        exit;
    }

    // ensure a safe filename
    $name = preg_replace("/[^A-Z0-9._-]/i", "_", $usrFile["name"]);
    print_r($name."<br>");


    // don't overwrite an existing file
    $i = 0;
    $parts = pathinfo($name);
    while (file_exists(UPLOAD_DIR . $name)) {
        $i++;
        $name = $parts["filename"] . "-" . $i . "." . $parts["extension"];
    }
    print_r("new name: ".$name."<br>");
    lstat(UPLOAD_DIR);


    // preserve file from temporary directory
    $success = move_uploaded_file($usrFile["tmp_name"],
        UPLOAD_DIR . $name);
    if (!$success) {
        echo "<p>Unable to save file.</p>";
        exit;
    }

    // set proper permissions on the new file
    chmod(UPLOAD_DIR . $name, 0644);

    //check that the file is not executable (doesn't work)
    $ftype = array();
    //exec("file " . UPLOAD_DIR . $name, ftype); <- returns a 500 error
    print_r(ftype);
}
?>