In our previous blog we taught you about how to upload images using jQuery and PHP but it works for single image.  Now, In this blog post we focused on Multiple Image uploading functionality using PHP and jQuery in forms. Just click on live demo or follow our codes to use it.

Here, we have created an html form, set it’s attribute enctype=”multipart/form-data”. This form contains input tag , type=” file” when a user clicks on this input tag a window will opens for image file selection, after image selection an image preview is shown to user (using jquery).

Also, there is an Add More Files button which allows user to dynamically create above input tag, type=” file” and with it he/she can perform the same functionality as explained above.

As user clicks on another input tag of type submit on which a PHP script will executes in which we wrote our codes in following steps:-

  • We defined an array of allowed extensions .
$validextensions = array("jpeg", "jpg", "png");
  •  Defined a variable to store the selected file extension.
$ext = explode('.', basename($_FILES['file']['name'][$i]));//Explode file name from dot(.)
$file_extension = end($ext); //Store extensions in the variable
  •  Matching selected file size and it’s extension with allowed file size and  allowed file extensions.
if (($_FILES["file"]["size"][$i] < 100000) // Approx. 100kb files can be uploaded.
&& in_array($file_extension, $validextensions)) {
//PHP Image Uploading Code
}
  • If it is invalid file then,
echo "<span>***Invalid file Type or file Size Exceeded***<span>";
  • Else the following code will execute:

if (move_uploaded_file($_FILES['file']['tmp_name'][$i], $target_path)) {      //  If File Moved To Uploads Folder
echo $j. ').<span id="noerror">Image uploaded successfully!.</span><br/>';
} else {    //  If File Was Not Moved.
echo $j. ').<span id="error">please try again!.</span><br/><br/> ';
}
} else {    //  If File Size And File Type Was Incorrect.
echo $j. ').<span id="error">***Invalid file Size or Type***</span><br/><br/>';
}

multiple images upload functionality using PHP and jQuery

 

HTML Form  : multiupload.php

We have explained line by line process in the above section , Here we have Created a form with html syntax.


<!DOCTYPE html>
<html>
<head>
<title>Upload Multiple Images Using jquery and PHP</title>
<!-------Including jQuery from Google ------>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="script.js"></script>
<!------- Including CSS File ------>
<link rel="stylesheet" type="text/css" href="style.css">
<body>
<div id="maindiv">
<div id="formdiv">
<h2>Multiple Image Upload Form</h2>
<form enctype="multipart/form-data" action="" method="post">
First Field is Compulsory. Only JPEG,PNG,JPG Type Image Uploaded. Image Size Should Be Less Than 100KB.
<div id="filediv"><input name="file[]" type="file" id="file"/></div>
<input type="button" id="add_more" class="upload" value="Add More Files"/>
<input type="submit" value="Upload File" name="submit" id="upload" class="upload"/>
</form>
<!------- Including PHP Script here ------>
<?php include "upload.php"; ?>
</div>
</div>
</body>
</html>

 

PHP Image Uploading Script : upload.php

Here, We have given complete Multiple Image Uploading Script.


<?php
if (isset($_POST['submit'])) {
$j = 0;     // Variable for indexing uploaded image.
$target_path = "uploads/";     // Declaring Path for uploaded images.
for ($i = 0; $i < count($_FILES['file']['name']); $i++) {
// Loop to get individual element from the array
$validextensions = array("jpeg", "jpg", "png");      // Extensions which are allowed.
$ext = explode('.', basename($_FILES['file']['name'][$i]));   // Explode file name from dot(.)
$file_extension = end($ext); // Store extensions in the variable.
$target_path = $target_path . md5(uniqid()) . "." . $ext[count($ext) - 1];     // Set the target path with a new name of image.
$j = $j + 1;      // Increment the number of uploaded images according to the files in array.
if (($_FILES["file"]["size"][$i] < 100000)     // Approx. 100kb files can be uploaded.
&& in_array($file_extension, $validextensions)) {
if (move_uploaded_file($_FILES['file']['tmp_name'][$i], $target_path)) {
// If file moved to uploads folder.
echo $j. ').<span id="noerror">Image uploaded successfully!.</span><br/><br/>';
} else {     //  If File Was Not Moved.
echo $j. ').<span id="error">please try again!.</span><br/><br/>';
}
} else {     //   If File Size And File Type Was Incorrect.
echo $j. ').<span id="error">***Invalid file Size or Type***</span><br/><br/>';
}
}
}
?>

 

jQuery Code: script.js

This, jquery code is to provide image preview facility in form, before Uploading it.

var abc = 0;      // Declaring and defining global increment variable.
$(document).ready(function() {
//  To add new input file field dynamically, on click of "Add More Files" button below function will be executed.
$('#add_more').click(function() {
$(this).before($("<div/>", {
id: 'filediv'
}).fadeIn('slow').append($("<input/>", {
name: 'file[]',
type: 'file',
id: 'file'
}), $("<br/><br/>")));
});
// Following function will executes on change event of file input to select different file.
$('body').on('change', '#file', function() {
if (this.files && this.files[0]) {
abc += 1; // Incrementing global variable by 1.
var z = abc - 1;
var x = $(this).parent().find('#previewimg' + z).remove();
$(this).before("<div id='abcd" + abc + "' class='abcd'><img id='previewimg" + abc + "' src=''/></div>");
var reader = new FileReader();
reader.onload = imageIsLoaded;
reader.readAsDataURL(this.files[0]);
$(this).hide();
$("#abcd" + abc).append($("<img/>", {
id: 'img',
src: 'x.png',
alt: 'delete'
}).click(function() {
$(this).parent().parent().remove();
}));
}
});
// To Preview Image
function imageIsLoaded(e) {
$('#previewimg' + abc).attr('src', e.target.result);
};
$('#upload').click(function(e) {
var name = $(":file").val();
if (!name) {
alert("First Image Must Be Selected");
e.preventDefault();
}
});
});

 

CSS File: style.css

Styling HTML Elements.


@import "http://fonts.googleapis.com/css?family=Droid+Sans";
form{
background-color:#fff
}
#maindiv{
width:960px;
margin:10px auto;
padding:10px;
font-family:'Droid Sans',sans-serif
}
#formdiv{
width:500px;
float:left;
text-align:center
}
form{
padding:40px 20px;
box-shadow:0 0 10px;
border-radius:2px
}
h2{
margin-left:30px
}
.upload{
background-color:red;
border:1px solid red;
color:#fff;
border-radius:5px;
padding:10px;
text-shadow:1px 1px 0 green;
box-shadow:2px 2px 15px rgba(0,0,0,.75)
}
.upload:hover{
cursor:pointer;
background:#c20b0b;
border:1px solid #c20b0b;
box-shadow:0 0 5px rgba(0,0,0,.75)
}
#file{
color:green;
padding:5px;
border:1px dashed #123456;
background-color:#f9ffe5
}
#upload{
margin-left:45px
}
#noerror{
color:green;
text-align:left
}
#error{
color:red;
text-align:left
}
#img{
width:17px;
border:none;
height:17px;
margin-left:-20px;
margin-bottom:91px
}
.abcd{
text-align:center
}
.abcd img{
height:100px;
width:100px;
padding:5px;
border:1px solid #e8debd
}
b{
color:red
}

Conclusion:

This was all about multiple image uploading using PHP and jQuery. Similarily, you can define other file extensions to upload them,  just copy or download our codes to use it, keep following us for upcoming blogs.