Variable Inspector allows you to easily inspect your PHP $variables in a visually clean manner at a central dashboard in wp-admin. It aims to be an easy and useful enough debug tool.
It provides a single-line code to inspect your variable (see “How to Use” below). Nothing is shown to site visitors nor being output on the frontend, and the $variable content is nicely formatted for review using var_dump(), var_export() and print_r() on the inspector dashboard in wp-admin.
It’s a real time-saver for scenarios where Xdebug or even something like Ray is not ideal or simply an overkill. For example, when coding on a non-local environment via tools like Code Snippets, WPCodeBox, Scripts Organizer or Advanced Scripts. Additionally, because it is a regular WordPress plugin, you simply install, activate and use without the need for complicated configuration.
How to Use
Simply place the following line anywhere in your code after the
$variable_name you’d like to inspect:
do_action( 'inspect', [ 'variable_name', $variable_name ] );
If you’d like to record the originating PHP file and line number, append the PHP magic constants
__LINE__ as follows.
do_action( 'inspect', [ 'variable_name', $variable_name, __FILE__, __LINE__ ] );
This would help you locate and clean up the inspector lines once you’re done debugging.
- A nice review would be great!
- Give feedback and help improve future versions.
- Github repo to contribute code.
- Donate and support my work.
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How was this plugin built?
Variable Inspector was built with: WordPress Plugin Boilerplate | wppb.me | CodeStar framework | Simple Accordion | Fomantic UI. It was originally inspired by WP Logger.
Contributors & Developers
“Variable Inspector” is open source software. The following people have contributed to this plugin.Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
- Fix an issue where sometimes inspection shows empty or false result when result type is array or object.
- Additional suppression of admin notices via all_admin_notices hook and via CSS.
- All admin notices are now suppressed, i.e. no longer shown, on the Variable Inspector page.
- Add viewer (function) selector, e.g. print_r, that will apply to all inspection results after the selection is made and will persist after page reload. The selection is stored in wp_options table. Different viewer can still be selected for each result. Props to @pexlechris for the feedback.
- Add toggle to expand or collapse all inspection results. Props to @pexlechris for the feedback.
- Remove CodeStar framework dependency and replace with lightweight solution
- Dequeue public css and js files as they are empty and unused
- Add Refresh button and “Auto refresh” checkbox to load latest results. Props to @imantsk for the code and suggestion
- Add quick tutorial on the inspector results page to enable users to quickly reference the inspector code
- Confirmed compatibility with WordPress 6.0
- Fixed output via var_export()
- Better sanitization of variable name output
- Update plugin description
- Fixed output buffering mistake causing the output of the ‘1’ character in variable values
- NEW: implement tabbed output of var_export, var_dump and print_r
- Fixed “Fatal error: Uncaught Error: Call to undefined function dbDelta()”. Thanks to @rashedul007 for the fix!
- Initial stable release