Uploading images using php, but without page refresh

✔ Recommended Answer

This isn't the best way to do things, infact I am looking for a faster way to do this, but here is something I have coded myself that will upload the image data to the database and also automatically change your profile photo without refresh.

First the HTML, CSS and Javascript/JQuery for the client side.

//NOTE: this code is jquery, go to JQuery.com and find the download then link it in a script tag$("#activateFile").on('click', function(){   $("#fileBrowser").click();  });//if you want a finish edit button then use this otherwise put this code in the fileBrowser change event handler below KEEP THE readURL(this) OR IT WON'T WORK!$("#finishEdit").on('click', function(){      var imgData = document.getElementById('image').src;     //imageData is the variable you use $_POST to get the data in php   $.post('phpscriptname.php', {imageData:imgData}, function(data){              //recieve information back from php through the echo function(not required)          });  });$("#fileBrowser").change(function(){    readURL(this);  });function readURL(input) {  if (input.files && input.files[0]) {    var reader = new FileReader();	reader.onload = function (e) {	  $('#image').attr('src', e.target.result)    };	  		  reader.readAsDataURL(input.files[0]);  }}
#fileBrowser{  display: none;  }#image{  width: 200px;  height: 200px;  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script><!DOCTYPE html><html>  <head>    <title>Whatever your title is</title>   </head>  <body>        <img id="image" src="somesource.png" alt="somesource"/>    <!-- NOTE: you can use php to input the users current image in the source attribute -->    <br/>    <br/>        <!-- position and style these however you like -->        <input type="file" id="fileBrowser"> <!-- this is display none in css -->    <button id="activateFile">Choose files</button>    <br/>    <br/>    <button id="finishEdit">Done</button>      </body></html>

Now I will I show the server side with the database

require("yourconnectiontodatabase.php"); //create a connection to your db.$imgData = $_POST['imageData']; //the same variable we gave it in the jquery $.post method.//The bad part now is because we are using data straight from the input I don't think it's possible to know if the content type of the file is an image. This is a security flaw as people could try upload .exe files however, I do know the imagedata we get in javascript contains the filetype it is so you could check in javascript if it's an image type like if it's png or jpeg.//NOTE: when looking for types in images use image/type for example image/png//upload image to database$updateprofile = mysql_query("UPDATE table_name SET profileimage='$imgData' ");
Method #2

Yes, it is possible to upload images using PHP without a page refresh. You can use AJAX to make an asynchronous request to the server and upload the image in the background without reloading the page.

Here's a basic example of how you can achieve this using jQuery and PHP:

HTML form:

<form id="image-form" method="post" enctype="multipart/form-data"> <input type="file" name="image"> <button type="submit" id="submit-button">Upload</button> </form> <div id="message"></div>

JavaScript code using jQuery:

$(document).ready(function() { // Intercept the form submission $('#image-form').submit(function(e) { e.preventDefault(); // Serialize the form data var formData = new FormData($(this)[0]); // Send the AJAX request $.ajax({ url: 'upload.php', type: 'POST', data: formData, dataType: 'json', async: false, cache: false, contentType: false, processData: false, success: function(response) { // Show a success message $('#message').html(response.message); }, error: function(xhr, textStatus, errorThrown) { // Show an error message $('#message').html(xhr.responseText); } }); return false; }); });

PHP code:

if(isset($_FILES['image'])) { // Get the file information $fileName = $_FILES['image']['name']; $fileTmpName = $_FILES['image']['tmp_name']; $fileSize = $_FILES['image']['size']; $fileType = $_FILES['image']['type']; // Move the uploaded file to the uploads directory move_uploaded_file($fileTmpName, 'uploads/'.$fileName); // Send a JSON response echo json_encode(array('message' => 'Image uploaded successfully.')); }

In this example, we first intercept the form submission using jQuery and prevent the default behavior of reloading the page. We then use FormData to serialize the form data and send it to the server using an AJAX request.

On the server side, we use the move_uploaded_file function to move the uploaded file to a specified directory. We then send a JSON response back to the client to indicate whether the upload was successful or not.

Note that this is just a basic example, and you should add additional security measures (such as checking the file type and size) to prevent potential security vulnerabilities.


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