Get current post id witout passing in shortcode

Is that possible to get current post ID without passing in shortcode as parameter. Like [related-post] I want to get the post ID in which post this shortcode will use.

add_shortcode( 'related-article', 'related_article_title' );
function related_article_title( $atts ) {
    $post_id = get_the_ID();
    echo $post_id; 
    ob_start();
    $query = new WP_Query( array(
        'post_type' => 'post',
        'posts_per_page' => 1,
        'order' => 'DESC',
        )
    );
    if ( $query->have_posts() ) {   ?>
    <div class="menu-row">
        <?php while ( $query->have_posts() ) : $query->the_post(); ?>
            Leggi anche: <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
        <?php endwhile; wp_reset_postdata(); ?>
    </div>
    <?php $myvariable = ob_get_clean();
    return $myvariable;
}
}

Is that possible to get current post ID without passing in shortcode as parameter. Like [related-post] I want to get the post ID in which post this shortcode will use.

add_shortcode( 'related-article', 'related_article_title' );
function related_article_title( $atts ) {
    $post_id = get_the_ID();
    echo $post_id; 
    ob_start();
    $query = new WP_Query( array(
        'post_type' => 'post',
        'posts_per_page' => 1,
        'order' => 'DESC',
        )
    );
    if ( $query->have_posts() ) {   ?>
    <div class="menu-row">
        <?php while ( $query->have_posts() ) : $query->the_post(); ?>
            Leggi anche: <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
        <?php endwhile; wp_reset_postdata(); ?>
    </div>
    <?php $myvariable = ob_get_clean();
    return $myvariable;
}
}

• shortcode

Share Improve this question edited Dec 2, 2015 at 9:22 Sisir 7,87188 gold badges6161 silver badges9999 bronze badges asked Dec 2, 2015 at 9:16 Gorakh ShresthaGorakh Shrestha 10111 gold badge11 silver badge66 bronze badges 2

• 1 What does get_the_ID() returns? You can always find current post ID on global $post_id – Sisir Commented Dec 2, 2015 at 9:22
• 2 get_the_ID() return nothing here but global $post; $post_id = $post->ID; work for me. – Gorakh Shrestha Commented Dec 2, 2015 at 11:41

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2 Answers 2

Sorted by: Reset to default 6

add_shortcode( 'related-article', 'related_article_title' );
function related_article_title( $atts ) {
    global $post;
    echo $post->ID; // currently viewing post id
    ob_start();
    $query = new WP_Query( array(
        'post_type' => 'post',
        'posts_per_page' => 1,
        'order' => 'DESC',
        )
    );
    if ( $query->have_posts() ) {   ?>
    <div class="menu-row">
        <?php while ( $query->have_posts() ) : $query->the_post(); ?>
            Leggi anche: <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
        <?php endwhile; wp_reset_postdata(); ?>
    </div>
    <?php $myvariable = ob_get_clean();
    return $myvariable;
}
}

Just as @gorakh-shrestha was trying, using global $post and then $post->ID, is a good way to proceed, even inside a shortcode