WordPress feature image inside PHP

CMS & WordPress
1

I try insert inside functions.php a code to show a feature image.
An example inside functions.php:

add_theme_support( 'post-thumbnails' );	
set_post_thumbnail_size( 50, 50);
//add_image_size( 'single-post-thumbnail', 590, 180 );

As I understand this code will enable featured image support for posts and pages. When you set a featured image, it will not automatically display in our theme. We will still need to add it to the appropriate theme file. How to manage PHP inside a theme file like:

<?php the_post_thumbnail( 'single-post-thumbnail' ); ?>

How to connect a slider (NextGallery or Master slider) to such feature image code thumbnail?
Need help

2

Integrate with a Slider - If you want to integrate the featured image with a slider like NextGallery or Master Slider, you typically do the following:

  • Fetch the list of posts or custom post types you want to show in the slider.
  • Loop through the posts and for each post, get its featured image.
  • Use the slider’s API or recommended method to integrate the images into the slider.

Here’s a basic example to give you an idea:

$args = array(
    'posts_per_page' => 5, // Get latest 5 posts
);

$query = new WP_Query( $args );

if ( $query->have_posts() ) {
    echo '<div class="myslider">'; // Start your slider container

    while ( $query->have_posts() ) {
        $query->the_post();
        
        // Display featured image for each post in the slider
        the_post_thumbnail( 'single-post-thumbnail' );
    }

    echo '</div>'; // End your slider container
}

wp_reset_postdata();

For specific slider plugins like NextGallery or Master Slider, you would have to refer to their specific documentation or API on how to dynamically add images or content to slides.

3

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