MC4WP: Mailchimp for WordPress 4.9.14

Does MC4WP: Mailchimp for WordPress work with WordPress 6.6.1 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: 195.19 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 version6.6.1
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=d9a7bb6f29
Aspect after-activation
HTTP status 200
Load time 0.240 s
Memory usage 3.83 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 0.189 s
Memory usage 3.65 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 0.164 s
Memory usage 3.66 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 0.150 s
Memory usage 3.66 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 0.185 s
Memory usage 3.65 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 0.168 s
Memory usage 3.65 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 0.182 s
Memory usage 3.49 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 1.872 s
Memory usage 5.82 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.279 s0.284 s+0.005 s3.47 MiB3.67 MiB+ 198.67 KiB
/wp-admin/edit.php0.187 s0.196 s+0.009 s3.54 MiB3.73 MiB+ 196.13 KiB
/wp-admin/post-new.php0.678 s0.588 s-0.090 s5.75 MiB5.96 MiB+ 208.1 KiB
/wp-admin/upload.php0.506 s0.465 s-0.041 s3.49 MiB3.66 MiB+ 179.09 KiB
/wp-admin/options-writing.php0.189 s0.176 s-0.013 s3.41 MiB3.65 MiB+ 241.89 KiB
/wp-admin/media-new.php0.205 s0.189 s-0.016 s3.4 MiB3.65 MiB+ 255.27 KiB
/wp-admin/edit-tags.php?taxonomy=category0.185 s0.176 s-0.009 s3.47 MiB3.67 MiB+ 201.95 KiB
/wp-admin/post-new.php?post_type=page0.536 s0.529 s-0.007 s5.75 MiB5.95 MiB+ 203.73 KiB
/wp-admin/options-discussion.php0.209 s0.237 s+0.028 s3.41 MiB3.65 MiB+ 243.58 KiB
/wp-admin/edit-comments.php0.201 s0.324 s+0.123 s3.49 MiB3.66 MiB+ 179.08 KiB
/0.275 s0.222 s-0.053 s3.45 MiB3.49 MiB+ 39.66 KiB
Average 0.314 s0.308 s-0.006 s3.88 MiB4.07 MiB+ 195.19 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%8,5995,044122
Markdown10.2%99602
SVG1.0%9513
XML0.5%4401
JavaScript0.3%3108
CSS0.0%404
Total 9,769 5,045 140

PHP Code Analysis | More results »

Lines of code 6,844
Total complexity 1,281
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