Show Published Date If Modified Date is not available

I have an issue with the code too.
Let's say
Case 1. When I have published the post today, it should show something like this
January 18, 2020 by Author Name
but it's showing Last Updated on: January 18, 2020 by Author Name
Case 2. When I actually updated the post, it is working fine. showing
Last Updated on: January 18, 2020 by Author Name

Is it possible to get like in case 1?

Hi there,

use the original code provided here:

https://docs.generatepress.com/article/generate_post_date_output/#only-show-updated-date

Then update this line for the update-date:

$time_string = '<time class="entry-date updated-date" datetime="%3$s" itemprop="dateModified">%4$s</time>';

to:

$time_string = '<time class="entry-date updated-date" datetime="%3$s" itemprop="dateModified">Last Updated on: %4$s</time>';

It's not working

add_filter( 'generate_post_date_output', function( $output, $time_string ) {
    $time_string = '<time class="entry-date published" datetime="%1$s" itemprop="datePublished">%2$s</time>';

    if ( get_the_time( 'U' ) !== get_the_modified_time( 'U' ) ) {
        $time_string = '<time class="entry-date updated-date" datetime="%3$s" itemprop="dateModified">Last Updated on: %4$s</time>';
    }

    $time_string = sprintf( $time_string,
        esc_attr( get_the_date( 'c' ) ),
        esc_html( get_the_date() ),
        esc_attr( get_the_modified_date( 'c' ) ),
        esc_html( get_the_modified_date() )
    );

    return sprintf( '<span class="posted-on">%s</span> ',
        $time_string
    );
}, 10, 2 );

It's not working

add_filter( 'generate_post_date_output', function( $output, $time_string ) {
    $time_string = '<time class="entry-date published" datetime="%1$s" itemprop="datePublished">%2$s</time>';

    if ( get_the_time( 'U' ) !== get_the_modified_time( 'U' ) ) {
        $time_string = '<time class="entry-date updated-date" datetime="%3$s" itemprop="dateModified">Last Updated on: %4$s</time>';
    }

    $time_string = sprintf( $time_string,
        esc_attr( get_the_date( 'c' ) ),
        esc_html( get_the_date() ),
        esc_attr( get_the_modified_date( 'c' ) ),
        esc_html( get_the_modified_date() )
    );

    return sprintf( '<span class="posted-on">%s</span> ',
        $time_string
    );
}, 10, 2 );

Everything is fine but when I hit the publish button for the first time it's showing Last Updated Date Text.
Thank You

Any Update?

Hi there,

sorry we missed your replies - somehow they slipped through our system.
Try this code - it will compare date strings - so should only show updated if the there is a days difference:

add_filter( 'generate_post_date_output', function( $output, $time_string ) {
    $time_string = '<time class="entry-date published" datetime="%1$s" itemprop="datePublished">%2$s</time>';

    if ( get_the_date() !== get_the_modified_date() ) {
        $time_string = '<time class="entry-date updated-date" datetime="%3$s" itemprop="dateModified">Last Updated on: %4$s</time>';
    }

    $time_string = sprintf( $time_string,
        esc_attr( get_the_date( 'c' ) ),
        esc_html( get_the_date() ),
        esc_attr( get_the_modified_date( 'c' ) ),
        esc_html( get_the_modified_date() )
    );

    return sprintf( '<span class="posted-on">%s</span> ',
        $time_string
    );
}, 10, 2 );

where to find the file to make this change?

I can't find it in functions.php

Hi there,

that code is PHP - this article explains:

https://docs.generatepress.com/article/adding-php/

However things have changed since this topic. I have replied directly to your topic to answer this.