Quick PHP Drag and Drop File Uploader

Scenario

You need the users to upload files to a specific directory for a temporary purpose. You dont want everyone to create an account. Just want to identify who uploaded for reference purpose only.

Requirements

PHP Server with a folder with Read / Write permission

We have used dropzone . js script for the drag and drop upload feature. [ dropzone dot dev ]

Features:

# Simple script

#drag and drop supported – User can upload single or multiple files

#any device or laptop or desktop or mobile supported

#enforce user to enter email id which will allow easy tracking of files as this will be prepended to the files uploaded.

Files :

banner.jpg this can be a banner to have a nice looking interface. Dimension: 1329 X 180 pixels
index.php – this file is the landing page
upload.php – this is the file which actually moves the file from front end to the server.
data : create this folder where script will upload the files

Codes

index.php

<!DOCTYPE html>
<html>
<head>
  <title>Haneef File Uploader</title>
  <!-- Bootstrap Css -->
  <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet">
 
  <script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
   
  <link href="https://cdnjs.cloudflare.com/ajax/libs/dropzone/4.0.1/min/dropzone.min.css" rel="stylesheet">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/dropzone/4.2.0/min/dropzone.min.js"></script>
</head>
<body>
   
<div class="container">
    <center><img src="banner.jpg" class="img-rounded img-fluid" alt="Cinque Terre"></center><hr>
  <div class="row">
    <div class="col-md-12">
      <h2>Haneef File Uploader</h2>
      
        <div class="row">
            <div class="col"><div class="form-group">
    
    <input type="email" class="form-control" id="email" aria-describedby="emailHelp" placeholder="Enter Email ID to proceed" onmouseout="clearfloor()">

  </div></div>
            <div class="col"><button type="button">Proceed</button></div>
            </div>
       
  <div id="uploadform">
      <form action="upload.php" enctype="multipart/form-data" class="dropzone" id="image-upload">
          
        <div>
          <h3>Drop all Files here</h3>
        </div>
       <input type="hidden" name="fname" id="fname"/>
      </form>
     </div>
    </div>
  </div>
  
 </div>
   
<script type="text/javascript">
   
   $( document ).ready(function() {
   $("#uploadform").hide( );
});

   function validateEmail($email) {
  var emailReg = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/;
  return emailReg.test( $email );
}

function clearfloor(){
    var k = $("#email").val();
    
    if( !validateEmail(k)) {
        
        alert('wrong email');
        $("#uploadform").hide( );
    }
    else
    {
        $('input[name="fname"]').attr('value',k);
        if(k == null || k == ''){ 
            console.log('empty value');
         }
         else
         {
             $("#uploadform").show( );
         }

       
       
    }
}

    Dropzone.autoDiscover = false;
   
    var myDropzone = new Dropzone(".dropzone", { 
       autoProcessQueue: true,
       maxFilesize: 3,
       acceptedFiles: ".jpeg,.jpg,.png,.gif,.pdf,.doc.,docx"
    });
   
    $('#uploadFile').click(function(){
       myDropzone.processQueue();
    });
    
    
       
</script>
   
</body>
</html>

upload.php

<?php
$name = $_POST['fname'];
$uploadDir = 'data'; //Edit this line to define custom folder name
if (!empty($_FILES)) {
 $tmpFile = $_FILES['file']['tmp_name'];
 $filename = $uploadDir.'/'. $name.'-'.time().'-'. $_FILES['file']['name'];
 move_uploaded_file($tmpFile,$filename);
}
 
 
?>