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How to Add Custom Fields in WordPress

Adding custom fields in WordPress can be a powerful way to extend the functionality of your website or plugin. Custom fields allow you to store additional information about your posts, pages, or custom post types.

To add custom fields in WordPress, you can use the add_meta_box function. This function allows you to create a meta box where you can add and save custom fields.

function flashify_add_custom_fields_meta_box() {
    add_meta_box(
        'flashify_custom_fields_meta_box',
        'Custom Fields',
        'flashify_custom_fields_meta_box_callback',
        'post',
        'normal',
        'default'
    );
}

add_action('add_meta_boxes', 'flashify_add_custom_fields_meta_box');

function flashify_custom_fields_meta_box_callback($post) {
    // Add your custom fields here
}

Once you have added the meta box, you can define the custom fields and save their values using the save_post hook.

function flashify_save_custom_fields($post_id) {
    if (array_key_exists('custom_field_name', $_POST)) {
        update_post_meta(
            $post_id,
            '_custom_field_name',
            sanitize_text_field($_POST['custom_field_name'])
        );
    }
}

add_action('save_post', 'flashify_save_custom_fields');

When displaying the custom field value in your theme or plugin, you can use the get_post_meta function.

function flashify_display_custom_field_value($post_id) {
    $custom_field_value = get_post_meta($post_id, '_custom_field_name', true);
    echo $custom_field_value;
}

Custom fields are a great way to add additional information to your WordPress posts, pages, or custom post types. They can be used to store various types of data, such as text, numbers, dates, or even files.

For more information on adding custom fields in WordPress, you can refer to the WordPress developer documentation.

Shashika De Silva

Shashika De Silva

Hey there! I’m a seasoned PHP developer with over 10 years of experience crafting awesome WordPress plugins and themes. I specialize in creating scalable and robust solutions for WordPress and WooCommerce, ensuring everything runs smoothly. Whether it’s cross-platform software development, web development, or diving into Sheets/Excel with Appscript, Macros, and VBA, I’ve got you covered. I’m all about delivering top-notch results that go beyond expectations. Let’s team up and turn your ideas into reality, making your project shine! Looking forward to working together and achieving something remarkable!

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