Pull Request Resolves #47211

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Summary of Changes

This pull request updates the system/schemaorg plugin to support the image property when it is provided as an array.

Previously, the plugin only supported a string value for image. However, according to Schema.org specifications, the image property may also be an array (e.g., multiple images for a product).

This change:

• Adds support for both string and array values for image
• Prevents PHP errors caused by passing arrays to preg_match()
• Maintains backward compatibility with existing implementations
• Enables proper handling of multiple images in structured data

Testing Instructions

1. Apply this pull request.

2. Enable the System - Schemaorg plugin.

3. Test structured data using:

   • image as a string
   • image as an array of strings

4. Verify:

   • No PHP errors or warnings occur
   • Structured data is generated correctly
   • Existing functionality continues to work as expected

Actual Result Before Applying This Pull Request

• The plugin only accepts image as a string.
• Providing an array results in errors.
• PHP warnings may occur due to invalid usage of preg_match().

Expected Result After Applying This Pull Request

• The plugin supports both string and array formats for image.
• No errors or warnings occur.
• Multiple images are correctly processed.
• Backward compatibility is preserved.

Documentation Changes

• No documentation changes required for guide.joomla.org
• No documentation changes required for manual.joomla.org