Yoast SEO 7.0: PHP notice when the language is set from the content #229
Description
Plugins activated
Polylang 2.3.2
Yoast SEO 7.0
Issue Description
I get a PHP notice/warning when visiting the front.
This issue happens only when the language is set from the content and with Yoast SEO 7.0 (no matter the Polylang version). I didn't reproduce the issue with the previous version of Yoast SEO 6.3.1
Steps to reproduce the issue
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Go to Languages > Settings > Url mdofications module: Select ' The language is set from content' (no matter is in plain or post name permalinks).
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Visit a page on the front: I get the PHP notice/warning below:
PHP Notice: Undefined property: WPSEO_Frontend::$options in /git/polylang/modules/plugins/wpseo.php on line 32
PHP Stack trace:
PHP 1. {main}() /index.php:0
PHP 2. require() /index.php:17
PHP 3. wp() /wp-blog-header.php:16
PHP 4. WP->main() /wp-includes/functions.php:960
PHP 5. WP->query_posts() /wp-includes/class-wp.php:715
PHP 6. WP_Query->query() /wp-includes/class-wp.php:599
PHP 7. WP_Query->get_posts() /wp-includes/class-wp-query.php:3230
PHP 8. WP_Query->parse_query() /wp-includes/class-wp-query.php:1621
PHP 9. do_action_ref_array() /wp-includes/class-wp-query.php:1006
PHP 10. WP_Hook->do_action() /wp-includes/plugin.php:515
PHP 11. WP_Hook->apply_filters() /wp-includes/class-wp-hook.php:310
PHP 12. PLL_Choose_Lang_Content->parse_main_query() /wp-includes/class-wp-hook.php:286
PHP 13. PLL_Choose_Lang->home_language() /git/polylang/frontend/choose-lang-content.php:98
PHP 14. PLL_Choose_Lang_Content->set_language() /git/polylang/frontend/choose-lang.php:224
PHP 15. PLL_Choose_Lang->set_language() /git/polylang/frontend/choose-lang-content.php:36
PHP 16. do_action() /git/polylang/frontend/choose-lang.php:73
PHP 17. WP_Hook->do_action() /wp-includes/plugin.php:453
PHP 18. WP_Hook->apply_filters() /wp-includes/class-wp-hook.php:310
PHP 19. PLL_WPSEO->init() /wp-includes/class-wp-hook.php:288
PHP Warning: array_merge(): Argument #1 is not an array in /git/polylang/modules/plugins/wpseo.php on line 32
PHP Stack trace:
PHP 1. {main}() /index.php:0
PHP 2. require() /index.php:17
PHP 3. wp() /wp-blog-header.php:16
PHP 4. WP->main() /wp-includes/functions.php:960
PHP 5. WP->query_posts() /wp-includes/class-wp.php:715
PHP 6. WP_Query->query() /wp-includes/class-wp.php:599
PHP 7. WP_Query->get_posts() /wp-includes/class-wp-query.php:3230
PHP 8. WP_Query->parse_query() /wp-includes/class-wp-query.php:1621
PHP 9. do_action_ref_array() /wp-includes/class-wp-query.php:1006
PHP 10. WP_Hook->do_action() /wp-includes/plugin.php:515
PHP 11. WP_Hook->apply_filters() /wp-includes/class-wp-hook.php:310
PHP 12. PLL_Choose_Lang_Content->parse_main_query() /wp-includes/class-wp-hook.php:286
PHP 13. PLL_Choose_Lang->home_language() /git/polylang/frontend/choose-lang-content.php:98
PHP 14. PLL_Choose_Lang_Content->set_language() /git/polylang/frontend/choose-lang.php:224
PHP 15. PLL_Choose_Lang->set_language() /git/polylang/frontend/choose-lang-content.php:36
PHP 16. do_action() /git/polylang/frontend/choose-lang.php:73
PHP 17. WP_Hook->do_action() /wp-includes/plugin.php:453
PHP 18. WP_Hook->apply_filters() /wp-includes/class-wp-hook.php:310
PHP 19. PLL_WPSEO->init() /wp-includes/class-wp-hook.php:288
PHP 20. array_merge() /git/polylang/modules/plugins/wpseo.php:32