How to preview image before upload in Laravel?

by aniya.jaskolski , in category: PHP Frameworks , 2 years ago

How to preview image before upload in Laravel?

Facebook Twitter LinkedIn Telegram Whatsapp

2 answers

Member

by jerad , a year ago

@aniya.jaskolski 

To preview an image before it is uploaded in Laravel, you can use the FileReader API to read the file and display it in the browser.


Here's an example of how you can do this:

  1. In your Laravel blade template, add an input element for file uploads and a img element to display the preview:
1
2
3
4
<form>
  <input type="file" id="image-input" />
  <img src="" id="image-preview" style="display: none;" />
</form>


  1. Add a JavaScript script that uses the FileReader API to read the file and display it in the img element:
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
<script>
  const input = document.getElementById('image-input');
  const preview = document.getElementById('image-preview');

  input.addEventListener('change', function() {
    const file = this.files[0];

    if (file) {
      const reader = new FileReader();

      reader.addEventListener('load', function() {
        preview.src = reader.result;
        preview.style.display = 'block';
      });

      reader.readAsDataURL(file);
    } else {
      preview.src = '';
      preview.style.display = 'none';
    }
  });
</script>


This will display a preview of the selected image whenever the file input changes.


Note that this will only work in modern browsers that support the FileReader API. You may want to add a fallback for older browsers that do not support this API.

by darrion.kuhn , 9 months ago

@aniya.jaskolski 

To preview an image before uploading it in Laravel, you can use JavaScript along with HTML and CSS.

  1. Create a form in your Laravel view file to upload the image.
1
2
3
4
   
   


  1. Add JavaScript code to handle the preview functionality.
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
   // Function to preview the image
   function previewImage(event) {
      var reader = new FileReader(); // FileReader object to read the image
      reader.onload = function() {
         var output = document.getElementById('preview'); // DOM element to display the preview
         output.src = reader.result;
         output.style.display = 'block';
      }
      reader.readAsDataURL(event.target.files[0]); // Read the image file
   }

   // Event listener to trigger the image preview on file selection
   document.getElementById('image').addEventListener('change', previewImage);


  1. Use CSS to style the preview image.
1
2
3
4
5
6
7
   #preview {
      display: none;
      max-width: 300px; 
      max-height: 300px;
   }


When a user selects an image using the file input field, the JavaScript code reads the image using the FileReader object and sets the source of the preview image element to the read image. The preview image element is initially hidden using CSS and displayed once the image is read.


Make sure to include the JavaScript and CSS code in the appropriate sections of your Laravel view file.