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Resize 101

Get multiple size of image depend on the requested URL. It is needed by Imagemap message object for LINE messaging API.

Try it on https://resize101.herokuapp.com/

Note

actually this project only consists of the following files:

  • .htaccess
  • index.php
  • folder_select.php
  • resize_image.php
  • 460 (folder containing images)
  • 700 (folder containing images)
  • 1040 (folder containing images)

The other files and folder (composer.json, composer.lock, folder vendor) are additional because Heroku need composer to activate GD library for image resizing.

Method available

This project show 3 methods, you will just need to choose one of them.

1. Htaccess

The available image size depends on the existing folder and image

Test url : https://yourdomain/images/brown/700

JSON example for LINE Messaging API:

{
  "type": "imagemap",
  "baseUrl": "https://yourdomain/images/brown",
  "altText": "This is an imagemap",
  "baseSize": {
      "height": 1040,
      "width": 1040
  }

2. Folder selection

The available image size depends on the existing folder and image

Test url : https://yourdomain/folder_select.php/brown/700

JSON example for LINE Messaging API:

{
  "type": "imagemap",
  "baseUrl": "https://yourdomain/folder_select.php/brown",
  "altText": "This is an imagemap",
  "baseSize": {
      "height": 1040,
      "width": 1040
  }

3. Image resizing

This is the most flexible, you can request any image size. It use GD library on your PHP server.

Test url : https://yourdomain/resize_image.php/brown/700

JSON example for LINE Messaging API:

{
  "type": "imagemap",
  "baseUrl": "https://yourdomain/resize_image.php/brown",
  "altText": "This is an imagemap",
  "baseSize": {
      "height": 1040,
      "width": 1040
  }