Report - Flexible Checkout Fields 4.1.36

Does Flexible Checkout Fields work with WordPress 6.9.1 and PHP 8.1.12? A smoke test was performed on 2026-03-07 03:12:22 UTC.

Summary

Errors

	No PHP errors, warnings or notices
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors
	Looks good! No problems were detected.

Performance

Memory usage: 24.42 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

Environment

WordPress version	6.9.1
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-03-07T03:07:00+00:00
Active installs	80,000+
WordPress.org page	https://wordpress.org/plugins/flexible-checkout-fields/
Badges	Get badge code

Pages 2

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=flexible-checkout-fields%2Fflexible-checkout-fields.php&plugin_status=all&paged=1&s&_wpnonce=1295ebf237
Aspect	after-activation
HTTP status	200
Load time	0.358 s
Memory usage	3.76 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.244 s
Memory usage	4.15 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.414 s	0.343 s	-0.071 s	3.78 MiB	3.8 MiB	+ 24.3 KiB
/wp-admin/edit.php	0.460 s	0.311 s	-0.149 s	3.79 MiB	3.81 MiB	+ 23.94 KiB
/wp-admin/post-new.php	0.801 s	0.868 s	+0.067 s	6.31 MiB	6.4 MiB	+ 92.33 KiB
/wp-admin/upload.php	0.472 s	0.429 s	-0.043 s	3.74 MiB	3.75 MiB	+ 6.89 KiB
/wp-admin/options-writing.php	0.341 s	0.319 s	-0.022 s	3.72 MiB	3.73 MiB	+ 10.89 KiB
/wp-admin/media-new.php	0.514 s	0.371 s	-0.143 s	3.71 MiB	3.72 MiB	+ 19.09 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.336 s	0.320 s	-0.016 s	3.72 MiB	3.75 MiB	+ 29.76 KiB
/wp-admin/post-new.php?post_type=page	0.695 s	0.728 s	+0.033 s	6.3 MiB	6.32 MiB	+ 23.86 KiB
/wp-admin/options-discussion.php	0.352 s	0.359 s	+0.007 s	3.72 MiB	3.73 MiB	+ 7.39 KiB
/wp-admin/edit-comments.php	0.336 s	0.325 s	-0.011 s	3.74 MiB	3.74 MiB	+ 6.89 KiB
/	0.298 s	0.208 s	-0.090 s	4.12 MiB	4.15 MiB	+ 23.25 KiB
Average	0.456 s	0.416 s	-0.040 s	4.24 MiB	4.26 MiB	+ 24.42 KiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

PHP

JavaScript

Language		%	Lines of code	Comment lines	Files
	PHP	84.1%	21,638	14,271	512
	JavaScript	9.6%	2,473	961	16
	JSON	4.0%	1,019	0	21
	CSS	2.1%	542	54	15
	SVG	0.2%	60	0	1
Total			25,732	15,286	565

PHP Code Analysis | More results »

Lines of code	7,604
Total complexity	1,531
Median class complexity	5.0
Median method complexity	1.0
Most complex class	Flexible_Checkout_Fields_Plugin
Most complex function	wpdesk_get_order_meta()

Classes	164
Methods	738
Functions	25

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Options `wp_options` 2

activation_plugin_flexible-checkout-fields/flexible-checkout-fields.php
plugin_activation_flexible-checkout-fields/flexible-checkout-fields.php

PHP Error Log

The log file is empty.

Flexible Checkout Fields 4.1.36