Attempt to read property "user_nicename" on bool in link-template.php on line 265

[psimatrix]

PHP Warning: Attempt to read property "user_nicename" on bool in .../wp-includes/link-template.php on line 265

if the $authordata == false from get_userdata() then this will produce the error. If the current post object is not set, it will produce the error.

[sabernhardt]

(line 265 is within get_permalink())

Prevent PHP warning when reading user_nicename property from $authordata variable

Trac ticket: https://core.trac.wordpress.org/ticket/56229

[sabernhardt]

Thanks for the report and for the patch!

Plugins can replace the get_userdata function (and/or get_user_by). In case the custom function returns an unexpected type, could checking whether $authordata is an object be a better condition?

	if ( is_object( $authordata ) ) {
		$author = $authordata->user_nicename;
	}