How to Pass Variables from front-page.php to JavaScript in WordPress

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Understanding the Problem

Example Code

Here’s the code snippet you might have tried:

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In this example, you correctly expected to see the variable printed in your JavaScript file with:

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However, if this does not work, you may wonder what went wrong.

The Solution

Common Issues

Steps to Fix the Issue

Follow these steps to resolve the problem:

Add wp_head() in the <head> Section

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Modify the Action Hooks
You can keep your function pass_var_to_js() in the body of your HTML, but you no longer need to call add_action('wp_body_open', 'pass_var_to_js');. Instead, the wp_enqueue_scripts action will suffice:

Remove this line:

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Updated Example Code

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Testing the Output

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Conclusion

Sharing data between PHP and JavaScript in WordPress doesn’t have to be complicated. By ensuring that you’ve configured your scripts properly and using the wp_head() function, you can easily access your PHP variables in your JavaScript files.

Feel free to reach out in the comments below if you have any further queries or if you face any challenges! Happy coding!