Automatyczne generowanie tekstu ALT dla obrazów w WordPressie

Kod

<?php
// Hook into the 'add_attachment' action to automatically generate alt text for images
add_action('add_attachment', 'wp_dudecom_generate_alt_text_for_images');

/**
 * Automatically generate alt text for images using AI when they are uploaded.
 *
 * @param int $post_ID The ID of the attachment.
 */
function wp_dudecom_generate_alt_text_for_images($post_ID) {
    // Check if the uploaded file is an image
    if (wp_attachment_is_image($post_ID)) {
        // Get the current alt text
        $current_alt = get_post_meta($post_ID, '_wp_attachment_image_alt', true);

        // If there is no alt text, generate one
        if (empty($current_alt)) {
            // Get the image file path
            $image_path = get_attached_file($post_ID);

            // Generate alt text using an AI service (this is a placeholder function)
            $generated_alt_text = wp_dudecom_ai_generate_alt_text($image_path);

            // Update the alt text meta field
            if (!empty($generated_alt_text)) {
                update_post_meta($post_ID, '_wp_attachment_image_alt', sanitize_text_field($generated_alt_text));
            }
        }
    }
}

/**
 * Placeholder function to simulate AI-based alt text generation.
 * Replace this function with actual AI service integration.
 *
 * @param string $image_path The path to the image file.
 * @return string The generated alt text.
 */
function wp_dudecom_ai_generate_alt_text($image_path) {
    // Simulate AI processing and return a generated alt text
    // In a real scenario, you would integrate with an AI service API here
    return 'Generated alt text for image';
}
?>