Custom Post Count Plugin

Description

The Custom Post Count plugin allows you to display the number of posts based on selected categories, tags, custom post types, and a specified date range. This plugin adds an admin page where you can configure your selections and view the resulting post count.

Installation

1. Upload the custom-post-count directory to the /wp-content/plugins/ directory.
2. Activate the plugin through the 'Plugins' menu in WordPress.

Usage

1. Navigate to the 'Post Count' page in the WordPress admin menu.
2. Select the categories, enter tags (comma-separated), custom post types (comma-separated), and specify the date range.
3. Click the 'Save Changes' button to save your selections.
4. The post count based on your selections will be displayed on the same page.

Features

• Select one or more categories.
• Enter tags as a comma-separated list.
• Enter custom post types as a comma-separated list.
• Specify a date range to filter posts.
• View the total number of posts that match your criteria.

Code Explanation

Prevent Direct Access

Prevents direct access to the plugin file.

if (!defined('ABSPATH')) {
    exit;
}

Add Admin Page

Adds a new menu item for the plugin in the WordPress admin.

add_action('admin_menu', 'cpc_add_admin_page');

Register Settings

Registers settings and fields for the plugin's admin page.

add_action('admin_init', 'cpc_register_settings');

Display Post Count

Calculates and displays the post count based on selected criteria.

function cpc_display_post_count() {
    // Implementation
}
add_action('admin_footer', 'cpc_display_post_count');

Functions

cpc_add_admin_page

Adds the admin page to the WordPress menu.

cpc_admin_page

Displays the settings form and post count results.

cpc_register_settings

Registers the settings, sections, and fields for the plugin.

cpc_sanitize_array

Sanitizes an array of inputs.

cpc_main_section_cb

Callback function for the main section description.

cpc_categories_cb

Displays the categories as checkboxes.

cpc_tags_cb

Displays the tags input field.

cpc_post_types_cb

Displays the custom post types input field.

cpc_date_from_cb

Displays the 'Date From' input field.

cpc_date_to_cb

Displays the 'Date To' input field.

cpc_display_post_count

Fetches and displays the post count based on selected criteria.

License

This plugin is open-source and available under the GPL-2.0+ license.