MC4WP: Mailchimp for WordPress 4.9.9

Does MC4WP: Mailchimp for WordPress work with WordPress 6.4.1 and PHP 8.1.12? A smoke test was performed on .

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: 144.34 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 version6.4.1
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/
Badges

WordPress compatibility badge PHP compatibility badge

Get badge code

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=de3dc5bc17
Aspect after-activation
HTTP status 200
Load time 0.525 s
Memory usage 3.65 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 0.234 s
Memory usage 3.5 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 0.264 s
Memory usage 3.51 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 0.218 s
Memory usage 3.51 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 0.264 s
Memory usage 3.52 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 0.214 s
Memory usage 3.49 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 0.260 s
Memory usage 3.39 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 2.779 s
Memory usage 5.51 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.499 s0.385 s-0.114 s3.38 MiB3.55 MiB+ 175.88 KiB
/wp-admin/edit.php0.274 s0.247 s-0.027 s3.41 MiB3.58 MiB+ 174.04 KiB
/wp-admin/post-new.php0.953 s0.763 s-0.190 s5.46 MiB5.56 MiB+ 103.98 KiB
/wp-admin/upload.php0.704 s0.539 s-0.165 s3.32 MiB3.48 MiB+ 158.47 KiB
/wp-admin/options-writing.php0.237 s0.259 s+0.022 s3.32 MiB3.46 MiB+ 150.32 KiB
/wp-admin/media-new.php0.337 s0.284 s-0.053 s3.29 MiB3.46 MiB+ 169.92 KiB
/wp-admin/edit-tags.php?taxonomy=category0.219 s0.238 s+0.019 s3.31 MiB3.48 MiB+ 175.09 KiB
/wp-admin/post-new.php?post_type=page0.732 s0.629 s-0.103 s5.45 MiB5.55 MiB+ 103.61 KiB
/wp-admin/options-discussion.php0.487 s0.291 s-0.196 s3.3 MiB3.46 MiB+ 159.76 KiB
/wp-admin/edit-comments.php0.317 s0.455 s+0.138 s3.33 MiB3.51 MiB+ 177.77 KiB
/0.383 s0.269 s-0.114 s3.36 MiB3.39 MiB+ 38.9 KiB
Average 0.467 s0.396 s-0.071 s3.72 MiB3.86 MiB+ 144.34 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
PHP87.6%7,8755,045120
Markdown10.4%93501
SVG1.1%9513
XML0.5%4401
JavaScript0.4%3219
CSS0.0%404
Total 8,985 5,047 138

PHP Code Analysis | More results »

Lines of code 6,209
Total complexity 1,279
Median class complexity 13.0
Median method complexity 1.0
Most complex class MC4WP_API_V3
Most complex function MC4WP_List_Data_Mapper::map_list()
Classes 63
Methods 509
Functions 48

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

The log file is empty.

See also: All tests for this plugin, How to Hide MC4WP: Mailchimp for WordPress Admin Menus