MC4WP: Mailchimp for WordPress 4.9.1

Does MC4WP: Mailchimp for WordPress work with WordPress 6.1.1 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
1PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 147.29 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 version6.1.1
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 2,000,000+
WordPress.org page https://wordpress.org/plugins/mailchimp-for-wp/
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Pages 8

Plugins ‹ Test site — WordPress

Page screenshot: Plugins ‹ Test site — WordPress
URL /wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL /wp-admin/plugins.php?action=activate&plugin=mailchimp-for-wp%2Fmailchimp-for-wp.php&plugin_status=all&paged=1&s&_wpnonce=38599704a2
Aspect after-activation
HTTP status 200
Load time 0.261 s
Memory usage 3.29 MiB
JS errors None
Resource errors None

MC4WP

Page screenshot: MC4WP
URL /wp-admin/admin.php?page=mailchimp-for-wp
Aspect menu-item
HTTP status 200
Load time 0.305 s
Memory usage 3.16 MiB
JS errors None
Resource errors None

MC4WP → Form

Page screenshot: MC4WP → Form
URL /wp-admin/admin.php?page=mailchimp-for-wp-forms&view=add-form
Requested URL /wp-admin/admin.php?page=mailchimp-for-wp-forms
Aspect menu-item
HTTP status 200
Load time 0.186 s
Memory usage 3.18 MiB
JS errors None
Resource errors None

MC4WP → Integrations

Page screenshot: MC4WP → Integrations
URL /wp-admin/admin.php?page=mailchimp-for-wp-integrations
Aspect menu-item
HTTP status 200
Load time 0.172 s
Memory usage 3.18 MiB
JS errors None
Resource errors None

MC4WP → Other

Page screenshot: MC4WP → Other
URL /wp-admin/admin.php?page=mailchimp-for-wp-other
Aspect menu-item
HTTP status 200
Load time 0.172 s
Memory usage 3.19 MiB
JS errors None
Resource errors None

MC4WP → Add-ons

Page screenshot: MC4WP → Add-ons
URL /wp-admin/admin.php?page=mailchimp-for-wp-extensions
Aspect menu-item
HTTP status 200
Load time 0.155 s
Memory usage 3.15 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.224 s
Memory usage 3.03 MiB
JS errors None
Resource errors None

Widgets ‹ Test site — WordPress

Page screenshot: Widgets ‹ Test site — WordPress
URL /wp-admin/widgets.php
Aspect new-sidebar-widgets
HTTP status 200
Load time 1.391 s
Memory usage 5 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.592 s0.257 s-0.335 s3.05 MiB3.21 MiB+ 165.5 KiB
/wp-admin/edit.php0.194 s0.170 s-0.024 s3.07 MiB3.23 MiB+ 163.66 KiB
/wp-admin/post-new.php0.742 s0.922 s+0.180 s4.97 MiB5.08 MiB+ 119.97 KiB
/wp-admin/upload.php0.649 s0.244 s-0.405 s2.99 MiB3.14 MiB+ 148.09 KiB
/wp-admin/options-writing.php0.135 s0.152 s+0.017 s2.99 MiB3.12 MiB+ 134.01 KiB
/wp-admin/media-new.php0.246 s0.361 s+0.115 s2.97 MiB3.12 MiB+ 159.55 KiB
/wp-admin/edit-tags.php?taxonomy=category0.172 s0.175 s+0.003 s2.98 MiB3.14 MiB+ 164.72 KiB
/wp-admin/post-new.php?post_type=page0.581 s0.619 s+0.038 s4.96 MiB5.07 MiB+ 115.6 KiB
/wp-admin/options-discussion.php0.205 s0.180 s-0.025 s2.97 MiB3.12 MiB+ 148.16 KiB
/wp-admin/edit-comments.php0.177 s0.198 s+0.021 s3 MiB3.14 MiB+ 147.39 KiB
/0.287 s0.200 s-0.087 s2.94 MiB3.09 MiB+ 153.48 KiB
Average 0.362 s0.316 s-0.046 s3.35 MiB3.5 MiB+ 147.29 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
Markdown
Language % Lines of code Comment lines Files
PHP88.3%8,1755,143123
Markdown9.8%90701
SVG1.0%9513
XML0.5%4401
JavaScript0.3%3219
CSS0.0%404
Total 9,257 5,145 141

PHP Code Analysis | More results »

Lines of code 6,674
Total complexity 1,334
Median class complexity 13.0
Median method complexity 1.0
Most complex class MC4WP_API_V3
Most complex function _mc4wp_update_groupings_data()
Classes 65
Methods 533
Functions 50

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 4

Custom Post Types 1

ID Name
mc4wp-formMailchimp Sign-up Forms

Sidebar Widgets 1

ID Name
mc4wp_form_widgetMailchimp Sign-Up Form

PHP Error Log 1 lines

[07-Feb-2023 08:15:12 UTC] PHP Deprecated:  Automatic conversion of false to array is deprecated in /wp-content/plugins/mailchimp-for-wp/includes/admin/class-review-notice.php on line 85
See also: All tests for this plugin, How to Hide MC4WP: Mailchimp for WordPress Admin Menus