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Another common cause of "jQuery not defined" errors is that jQuery is loaded after other scripts that depend on it. Fixed script loading order to ensure jQuery is always loaded first to avoid conflicts.

If you know which script depends on jQuery, you can queue the script correctly and add jQuery as a dependency.

If the "jQuery is not defined" error is caused by jQuery france phone number loading after other scripts that depend on it, you can use WPCode to fix the loading order of your scripts.

First, install and enable the WPCode plugin, or choose the free version called WPCode Lite.

Once activated, go to Code Snippets + New Snippet and click the Use Snippet button under Add Custom Code (New Snippet).


In the code editor, give your snippet a name, such as "Correct script load order," and select "PHP snippet" as the snippet type.

Then, add the following code to ensure that any custom scripts require jQuery as a dependency:

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wp_enqueue_script( 'your-script-handle', get_template_directory_uri() . '/js/your-script.js', array( 'jquery' ), null, true );
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Don't forget to replace "your-script-handle" with a meaningful name to identify the script. And replace "/js/your-script.js" with the actual name of the script file in your theme's /js/ folder.

The code section array('jquery') ensures that jQuery is loaded first.

After you've added the code, scroll through the Insert options and select Site Wide Header to make sure the script loads into the correct part of your site's HTML.

Load code site wide header
Finally, click the "Save Snippet" button at the top to save your custom code.

So don't forget to activate the snippet by moving the toggle to Active.