Ajax Image Upload using PHP and jQuery
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Ajax Image Upload using PHP and jQuery</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
<script>
$(document).ready(function (e) {
$("#uploadimage").on('submit',(function(e) {
e.preventDefault();
$("#message").empty();
$('#loading').show();
$.ajax({
url: "ajax_php_file.php", // Url to which the request is send
type: "POST", // Type of request to be send, called as method
data: new FormData(this), // Data sent to server, a set of key/value pairs (i.e. form fields and values)
contentType: false, // The content type used when sending data to the server.
cache: false, // To unable request pages to be cached
processData:false, // To send DOMDocument or non processed data file it is set to false
success: function(data) // A function to be called if request succeeds
{
$('#loading').hide();
$("#message").html(data);
}
});
}));
// Function to preview image after validation
$(function() {
$("#file").change(function() {
$("#message").empty(); // To remove the previous error message
var file = this.files[0];
var imagefile = file.type;
var match= ["image/jpeg","image/png","image/jpg"];
if(!((imagefile==match[0]) || (imagefile==match[1]) || (imagefile==match[2])))
{
$('#previewing').attr('src','img/noimage.png');
$("#message").html("<p id='error'>Please Select A valid Image File</p>"+"<h4>Note</h4>"+"<span id='error_message'>Only jpeg, jpg and png Images type allowed</span>");
return false;
}
else
{
var reader = new FileReader();
reader.onload = imageIsLoaded;
reader.readAsDataURL(this.files[0]);
}
});
});
function imageIsLoaded(e) {
$("#file").css("color","green");
$('#image_preview').css("display", "block");
$('#previewing').attr('src', e.target.result);
$('#previewing').attr('width', '250px');
$('#previewing').attr('height', '230px');
};
});
</script>
</head>
<body>
<div class="main">
<h1>Ajax Image Upload</h1><br/>
<hr>
<form id="uploadimage" action="" method="post" enctype="multipart/form-data">
<div id="image_preview"><img id="previewing" src="img/noimage.png"/></div>
<hr id="line">
<div id="selectImage">
<label>Select Your Image</label><br/>
<input type="file" name="file" id="file" required />
<input type="submit" value="Upload" class="submit" />
</div>
</form>
</div>
<h4 id='loading'><img id="previewing" src="img/loader.gif"/> Loading..</h4>
<div id="message"></div>
<style>
body {
font-family: 'Roboto Condensed', sans-serif;
}
h1
{
text-align: center;
background-color: #FEFFED;
height: 70px;
color: rgb(95, 89, 89);
margin: 0 0 -29px 0;
padding-top: 14px;
border-radius: 10px 10px 0 0;
font-size: 35px;
}
.main {
position: absolute;
top: 50px;
left: 20%;
width: 450px;
height:530px;
border: 2px solid gray;
border-radius: 10px;
}
.main label{
color: rgba(0, 0, 0, 0.71);
margin-left: 60px;
}
#image_preview{
width:100%;
height:auto;
text-align: center;
color: #C0C0C0;
overflow: auto;
}
#selectImage{
padding: 19px 21px 14px 15px;
position: absolute;
bottom: 0px;
width: 414px;
background-color: #FEFFED;
border-radius: 10px;
}
.submit{
font-size: 16px;
background: linear-gradient(#ffbc00 5%, #ffdd7f 100%);
border: 1px solid #e5a900;
color: #4E4D4B;
font-weight: bold;
cursor: pointer;
width: 300px;
border-radius: 5px;
padding: 10px 0;
outline: none;
margin-top: 20px;
margin-left: 15%;
}
.submit:hover{
background: linear-gradient(#ffdd7f 5%, #ffbc00 100%);
}
#file {
color: red;
padding: 5px;
border: 5px solid #8BF1B0;
background-color: #8BF1B0;
margin-top: 10px;
border-radius: 5px;
box-shadow: 0 0 15px #626F7E;
margin-left: 15%;
width: 72%;
}
#message{
position:absolute;
top:120px;
left:815px;
}
#success
{
color:green;
}
#invalid
{
color:red;
}
#line
{
margin-top: 274px;
}
#error
{
color:red;
}
#error_message
{
color:blue;
}
#loading
{
display:none;
position:absolute;
top:50px;
left:850px;
font-size:25px;
}
</style>
</body>
</html>
<?php
if(isset($_FILES["file"]["type"]))
{
$validextensions = array("jpeg", "jpg", "png");
$temporary = explode(".", $_FILES["file"]["name"]);
$file_extension = end($temporary);
if ((($_FILES["file"]["type"] == "image/png") || ($_FILES["file"]["type"] == "image/jpg") || ($_FILES["file"]["type"] == "image/jpeg")
) && ($_FILES["file"]["size"] < 100000)//Approx. 100kb files can be uploaded.
&& in_array($file_extension, $validextensions)) {
if ($_FILES["file"]["error"] > 0){
echo "Return Code: " . $_FILES["file"]["error"] . "<br/><br/>";
}else{
if (file_exists("upload/" . $_FILES["file"]["name"])) {
echo $_FILES["file"]["name"] . " <span id='invalid'><b>already exists.</b></span> ";
}else{
$sourcePath = $_FILES['file']['tmp_name']; // Storing source path of the file in a variable
$targetPath = "upload/".$_FILES['file']['name']; // Target path where file is to be stored
move_uploaded_file($sourcePath,$targetPath) ; // Moving Uploaded file
echo "<span id='success'>Image Uploaded Successfully...!!</span><br/>";
echo "<br/><b>File Name:</b> " . $_FILES["file"]["name"] . "<br>";
echo "<b>Type:</b> " . $_FILES["file"]["type"] . "<br>";
echo "<b>Size:</b> " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "<b>Temp file:</b> " . $_FILES["file"]["tmp_name"] . "<br>";
}
}
}else{
echo "<span id='invalid'>***Invalid file Size or Type***<span>";
}
}
?>
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