Using WordPress ‘is_new_day()’ PHP function

The is_new_day() WordPress PHP function determines whether the publish date of the current post in the loop is different from the publish date of the previous post in the loop.

Table of contents

Usage

if ( is_new_day() ) {
    // Do something if it's a new day
} else {
    // Do something else if it's not a new day
}

Parameters

• None

More information

See WordPress Developer Resources: is_new_day()

Examples

Displaying “New Day” Heading

Display a “New Day” heading before the first post of each new day in the loop.

if ( have_posts() ) {
    while ( have_posts() ) {
        the_post();

        if ( is_new_day() ) {
            echo '<h2>New Day</h2>';
        }

        // Display the post content here
    }
}

Adding a CSS Class to Posts on a New Day

Add a special CSS class to the posts that are published on a new day.

if ( have_posts() ) {
    while ( have_posts() ) {
        the_post();

        $new_day_class = is_new_day() ? 'new-day' : '';

        echo '<div class="post ' . $new_day_class . '">';
        // Display the post content here
        echo '</div>';
    }
}

Separating Posts by Day with Horizontal Line

Separate posts in the loop with a horizontal line if they are from different days.

if ( have_posts() ) {
    while ( have_posts() ) {
        the_post();

        if ( is_new_day() ) {
            echo '<hr>';
        }

        // Display the post content here
    }
}

Displaying Date for Posts on a New Day

Display the date before the post title for posts published on a new day.

if ( have_posts() ) {
    while ( have_posts() ) {
        the_post();

        if ( is_new_day() ) {
            echo '<p class="post-date">' . get_the_date() . '</p>';
        }

        // Display the post title and content here
    }
}

Counting Posts Per Day

Count the number of posts published each day in the loop.

$day_count = 0;

if ( have_posts() ) {
    while ( have_posts() ) {
        the_post();

        if ( is_new_day() ) {
            if ( $day_count > 0 ) {
                echo '<p>Posts today: ' . $day_count . '</p>';
            }

            $day_count = 1;
        } else {
            $day_count++;
        }

        // Display the post content here
    }

    // Display the post count for the last day in the loop
    echo '<p>Posts today: ' . $day_count . '</p>';
}