receive uploaded file...crud

uploaded_files.php

<?php

$storage = $_SERVER['DOCUMENT_ROOT'].'/droid/uploads/';

#check uploaded file status
if(is_uploaded_file($_FILES['uploaded_file']['tmp_name'])){
    echo "\nfile successfully uploaded!\n";
}else{
    echo "\nfile not uploaded!\n";
    exit;
}

foreach ($_FILES as $file_name => $file_array){
    echo "tmp_path: ".$file_array['tmp_name']."\n";
    echo "Filename: ".$file_array['name']."\n";
    echo "File type: ".$file_array['type']."\n";
    echo "File size: ".$file_array['size']."\n";
    
    //move uploaded file
    $destination = $storage.$file_array['name'];
    if(move_uploaded_file($file_array['tmp_name'], $destination)){
        echo "file successfully moved to $storage\n";
        
//        if(!is_file_empty($destination)){
//            rename_files($destination);
//        }
        
    }else{
        echo "unable to move file to $storage\n";
    }
}

function is_file_empty($filename){
    $fp = fopen($filename,'r');
    if($fp == NULL)
        return true;
    return false;
}

function rename_files($filename){
    $systime = shell_exec("date +%Y-%m-%d:%S"); //..unix only!!!
    $newname = basename($filename)."-".$systime;
    if(rename($filename, $newname)){
        echo "file ".basename($filename)." has been successfully renamed to ".$newname."\n";
        return true;
    }else{
        echo "unable to rename file ".basename($filename)." to ".$newname."\n";
        return false;
    }
    
}


?>