MC4WP: Mailchimp for WordPress 4.9.10

Does MC4WP: Mailchimp for WordPress work with WordPress 6.4.2 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: 148.63 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 version6.4.2
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=82fa586cd3
Aspect after-activation
HTTP status 200
Load time 0.462 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 0.238 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 0.215 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 0.208 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 0.230 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 0.196 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 0.217 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 2.428 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.php0.376 s0.370 s-0.006 s3.38 MiB3.55 MiB+ 175.38 KiB
/wp-admin/edit.php0.213 s0.215 s+0.002 s3.41 MiB3.58 MiB+ 173.55 KiB
/wp-admin/post-new.php0.893 s0.665 s-0.228 s5.46 MiB5.56 MiB+ 103.48 KiB
/wp-admin/upload.php0.651 s0.488 s-0.163 s3.32 MiB3.48 MiB+ 157.97 KiB
/wp-admin/options-writing.php0.247 s0.236 s-0.011 s3.32 MiB3.46 MiB+ 149.82 KiB
/wp-admin/media-new.php0.325 s0.225 s-0.100 s3.29 MiB3.46 MiB+ 169.42 KiB
/wp-admin/edit-tags.php?taxonomy=category0.220 s0.212 s-0.008 s3.31 MiB3.48 MiB+ 174.59 KiB
/wp-admin/post-new.php?post_type=page0.613 s0.626 s+0.013 s5.45 MiB5.55 MiB+ 103.11 KiB
/wp-admin/options-discussion.php0.411 s0.267 s-0.144 s3.3 MiB3.46 MiB+ 159.26 KiB
/wp-admin/edit-comments.php0.278 s0.235 s-0.043 s3.34 MiB3.51 MiB+ 177.27 KiB
/0.323 s0.262 s-0.061 s3.31 MiB3.39 MiB+ 91.02 KiB
Average 0.414 s0.346 s-0.068 s3.72 MiB3.86 MiB+ 148.63 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%7,8775,047120
Markdown10.5%94101
SVG1.1%9513
XML0.5%4401
JavaScript0.4%3219
CSS0.0%404
Total 8,993 5,049 138

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