Function get_page_by_title is deprecated since version 6.2.0! Use WP_Query instead.

If you want to retrieve a WordPress page by its title using WP_Query instead of the deprecated get_page_by_title function in WordPress, you can achieve that by setting the post_title parameter within the WP_Query arguments. Here's an example:

$args = array(
    'post_type' => 'page',
    'post_status' => 'publish',
    'posts_per_page' => 1,
    'post_title' => 'Your Page Title'
);

$query = new WP_Query($args);

if ($query->have_posts()) {
    while ($query->have_posts()) {
        $query->the_post();
        // Page found, you can access its properties here
        the_title(); // Example of displaying the page title
    }
} else {
    // Page not found
}

wp_reset_postdata(); // Reset the query

In the example above, we're setting the post_type parameter to 'page' to specify that we're querying for pages. You can adjust the post type according to your needs. The post_status parameter is set to 'publish' to retrieve only published pages. You can modify these parameters as required.

The posts_per_page parameter is set to 1 to retrieve only one page matching the title. If you expect multiple pages with the same title, you can increase this value.

Finally, the post_title parameter is set to 'Your Page Title', where you should replace it with the actual title you're searching for.

Within the loop, you can access the properties of the retrieved page using functions like the_title(), the_content(), get_permalink(), etc.

Don't forget to call wp_reset_postdata() after the loop to reset the query and restore the global post data.