get_the_excerpt() PHP warning if no except/post_content exists.

[jaredatch]

In blog post single templates, it's not uncommon to have a blog "header" that pulls from whatever is set in the page_for_posts option. Example: ​https://cl.ly/2d27f2540fdc

This can be accomplished in the single post template by checking.

$title = get_the_title( get_option( 'page_for_posts' ) );
$desc  = get_the_excerpt( get_option( 'page_for_posts' ) );

However if the Blog page does not have anything inside the excerpt OR the post content, it triggers a PHP error.

See ​https://cl.ly/7dc933f2ef76

If there is no post content or excerpt, the function should return an empty string.

[jaredatch]

Original post should read if the Blog page does not have anything inside the excerpt AND the post content is empty :)

[birgire]

Thanks for the ticket @jaredatch

I suspect this might be covered in #42814 for 5.2 ?

[SergeyBiryukov]

Appears to be the same issue as in #42814.