To create a custom menu page in WordPress, retrieve custom table data from MySQL, and display it with the ability to export to CSV/Excel, you can follow these steps: 1. Create a custom table in your WordPress database to store your data. You can use the $wpdb global variable to interact with custom tables in WordPress. Here's an example of creating a custom table: <?php global $wpdb ; $table_name = $wpdb -> prefix . 'custom_data' ; $sql = "CREATE TABLE IF NOT EXISTS $table_name ( id INT(11) NOT NULL AUTO_INCREMENT, name VARCHAR(255) NOT NULL, email VARCHAR(255) NOT NULL, phone VARCHAR(20) NOT NULL, PRIMARY KEY (id) ) $charset_collate ;" ; require_once (ABSPATH . 'wp-admin/includes/upgrade.php' ); dbDelta( $sql ); ?> 2. Add the following code to your theme's functions.php file or create a custom plugin file to define the custom menu page: <?php // Add menu page function custom_menu_page () {
In a HTML table compare every column data of every row. if any column data has changed value with respect to previous row then highlight that data. We can achieve this using JavaScript. Here's a basic example of how you could implement this functionality: This code compares each cell of each row with the corresponding cell of the previous row. If the content of a cell is different from the content of the corresponding cell in the previous row, it adds a changed class to highlight the change. You can customise the appearance of the changed cells by modifying the CSS class .changed.