Fix Fatal error: Call to undefined function post_exists()

The error message “Fatal error: Call to undefined function post_exists()” typically occurs when you are trying to use the “post_exists()” function in WordPress, but the function is not available or has not been defined at the time of execution.

The “post_exists()” function is not a built-in function in WordPress, so if you are using this function in your code, it’s possible that you are either using a custom function or a third-party plugin that provides this functionality.

Here are some steps you can take to troubleshoot the issue:

  1. Check Function Definition: Verify that the “post_exists()” function is defined and implemented correctly in your code or a custom plugin you are using. Ensure that there are no typos or syntax errors in the function’s definition.
  2. Plugin Conflicts: If you are using a third-party plugin that provides the “post_exists()” function, make sure the plugin is active and up-to-date. Sometimes, conflicts between plugins can lead to undefined function errors. Disable other plugins one by one to check if any of them might be causing the conflict.
  3. Code Placement: Ensure that the code using the “post_exists()” function is placed correctly and within the appropriate context. If you are using the function in a theme template or custom plugin, ensure that it is loaded at the right time, such as within the “init” action or later hooks.
  4. Update WordPress: Make sure you are using the latest version of WordPress. An outdated installation might not have access to newly introduced functions.
  5. Review Theme/Plugin Files: If the “post_exists()” function is part of a custom theme or plugin, review the theme/plugin files to ensure there are no issues with the code.
  6. Seek Developer Support: If you are not sure why the error is occurring or how to fix it, consider seeking help from a developer or a community support forum related to the theme or plugin you are using.

Please keep in mind that without access to the specific code causing the error, it’s challenging to provide a precise solution. The steps mentioned above are general troubleshooting tips to help you identify and resolve the “undefined function” error.

Similar Posts

Hook pll_after_languages_cache is deprecated since version 3.4 with no alternative available

The error you’re seeing is a deprecated notice, which means that the particular hook “pll_after_languages_cache” is no longer recommended for use and will likely be removed in future versions of the software. Deprecated notices are not necessarily dangerous, but they indicate that the code you’re using may not be compatible with future versions of WordPress…

How to customize the title of the WooCommerce Product Archives based on the category?

To customize the title of the WooCommerce Product Archives based on the category, you can use a filter hook called “woocommerce_page_title“. By modifying this hook, you can change the text of the title according to the category and add the prefix “Here are” to every product category page. Here’s an example code snippet that you…

How to change the text of the “Publish” button to “Save” in WordPress?

To change the text of the “Publish” button to “Save” in WordPress, you can use the following code snippet: function change_publish_button_text($translation, $text) { if ($text === ‘Publish’) { return ‘Save’; } return $translation; } add_filter(‘gettext’, ‘change_publish_button_text’, 10, 2); You can add this code to your theme’s functions.php file or in a custom plugin file. This…

Fix: Unable to change wordpress password from dashboard

If you encountered the error while trying to change your password in the WordPress dashboard, here are a few potential solutions: define(‘WP_MEMORY_LIMIT’, ‘256M’); This will increase the memory limit to 256 megabytes. Save the file and try changing the password again. To reset a WordPress user password using phpMyAdmin, you can follow these steps: Remember…