Yii2 commonly requires these PHP extensions:

🛠 Step 2: Install/Enable Extensions via cPanel

✅ Method 1: Using Select PHP Version

1. Log in to your cPanel.
2. Scroll to "Software" section.
3. Click "Select PHP Version" (or "PHP Selector").
4. Choose your PHP version from the dropdown.
5. Enable the required extensions by checking the boxes.
6. Click "Save" or "Apply".

📝 If you don’t see this option, your hosting provider might restrict it. In that case, contact their support. 

✅ Step-by-Step: Install Required PHP Extensions in WHM

📌 Step 1: Log in to WHM

• Go to your WHM URL (usually https://yourserverip:2087)
• Log in with root or reseller credentials

📌 Step 2: Use EasyApache 4 to Manage Extensions

1. In the WHM sidebar, search for:
   🔍 "EasyApache 4"

2. Click "Customize" next to your current profile.

3. Go to the PHP Extensions section.

4. In the search bar, type and enable the following extensions by clicking the toggle:

• Common Yii Required Extensions:

  • PHP 8.0 or Higher
  • Ghost Script and Imagic Package (required)
  • JSON (must be enabled)
  • exec (must be enabled)
  • phpXX-mbstring
  • phpXX-pdo
  • phpXX-pdo_mysql
  • phpXX-intl
  • phpXX-curl
  • phpXX-dom
  • phpXX-json
  • phpXX-gd
  • phpXX-bcmath
  • phpXX-zip
  • phpXX-fileinfo
    (Replace phpXX with your PHP version, like php81 for PHP 8.1)

• After selecting, click "Review", then "Provision" to install.

Optional: Use MultiPHP INI Editor To ensure proper configuration: In WHM, search "MultiPHP INI Editor" Select your domain Ensure settings like memory_limit , upload_max_filesize , etc., meet Yii2 needs