MC4WP: Mailchimp for WordPress 4.9.6

Does MC4WP: Mailchimp for WordPress work with WordPress 6.3 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: 134.96 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 version6.3
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=ba09151eb2
Aspect after-activation
HTTP status 200
Load time 0.312 s
Memory usage 3.07 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 0.218 s
Memory usage 2.92 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 0.231 s
Memory usage 2.95 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 0.195 s
Memory usage 2.94 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 0.237 s
Memory usage 2.95 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 0.195 s
Memory usage 2.91 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 0.172 s
Memory usage 3.21 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 2.344 s
Memory usage 5.25 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.371 s0.315 s-0.056 s2.82 MiB2.99 MiB+ 172.45 KiB
/wp-admin/edit.php0.214 s0.232 s+0.018 s2.85 MiB3.02 MiB+ 170.61 KiB
/wp-admin/post-new.php0.812 s0.648 s-0.164 s5.21 MiB5.29 MiB+ 80.36 KiB
/wp-admin/upload.php0.838 s0.555 s-0.283 s2.77 MiB2.92 MiB+ 155.04 KiB
/wp-admin/options-writing.php0.231 s0.219 s-0.012 s2.76 MiB2.89 MiB+ 126.27 KiB
/wp-admin/media-new.php0.305 s0.206 s-0.099 s2.74 MiB2.88 MiB+ 146.49 KiB
/wp-admin/edit-tags.php?taxonomy=category0.203 s0.195 s-0.008 s2.76 MiB2.92 MiB+ 171.66 KiB
/wp-admin/post-new.php?post_type=page0.678 s0.558 s-0.120 s5.21 MiB5.27 MiB+ 64.5 KiB
/wp-admin/options-discussion.php0.544 s0.367 s-0.177 s2.75 MiB2.9 MiB+ 154.8 KiB
/wp-admin/edit-comments.php0.240 s0.277 s+0.037 s2.78 MiB2.93 MiB+ 154.34 KiB
/0.284 s0.209 s-0.075 s3.13 MiB3.21 MiB+ 88.01 KiB
Average 0.429 s0.344 s-0.085 s3.25 MiB3.38 MiB+ 134.96 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
PHP88.0%8,0305,130122
Markdown10.1%92301
SVG1.0%9513
XML0.5%4401
JavaScript0.4%3219
CSS0.0%404
Total 9,128 5,132 140

PHP Code Analysis | More results »

Lines of code 6,520
Total complexity 1,311
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 64
Methods 524
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

The log file is empty.

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