BUG caused by empty categories

  • Resolved kappa8086

    (@kappa8086)


    2 years, 8 months ago

    Below is logged in www-error:

    PHP Warning: Undefined array key 0 in XXXXX/wp-content/plugins/google-sitemap-generator/class-googlesitemapgeneratorstandardbuilder.php on line 696
    PHP Warning: Attempt to read property “taxonomy” on null in XXXXX/wp-content/plugins/google-sitemap-generator/class-googlesitemapgeneratorstandardbuilder.php on line 696
    PHP Warning: Undefined array key 0 in XXXXX/wp-content/plugins/google-sitemap-generator/class-googlesitemapgeneratorstandardbuilder.php on line 697
    PHP Warning: Attempt to read property “taxonomy” on null in XXXXX/wp-content/plugins/google-sitemap-generator/class-googlesitemapgeneratorstandardbuilder.php on line 697

    while in the generating result, a bad entry like
    https://xxx.com/sitemap-tax–1.xml
    appears, but if I refresh the page, it should get normal, until, a cache expiration time.

    I’ve traced in this BUG, and found that since my first category is empty, it is filtered out by core get_terms function, without a re-index, which makes $taxs[ 0 ] unset.

    Recommend a call of array_values() to make it work.

    As for why it can be recovered by a refresh, I found it’s due to the core BUG, for cached term query result, ‘hide_empty’=>TRUE (default value) does not work, so instead, $taxs[0] is back.

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