MC4WP: Mailchimp for WordPress 4.12.5

Does MC4WP: Mailchimp for WordPress work with WordPress 6.9.4 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: 229.06 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 version6.9.4
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 1,000,000+
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=f1839e154e
Aspect after-activation
HTTP status 200
Load time 0.350 s
Memory usage 4.12 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 0.301 s
Memory usage 3.95 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 0.344 s
Memory usage 4.22 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 0.701 s
Memory usage 3.97 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 0.553 s
Memory usage 3.95 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 0.259 s
Memory usage 3.95 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 0.259 s
Memory usage 4.23 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 1.209 s
Memory usage 6.33 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.981 s0.514 s-0.467 s3.78 MiB4.01 MiB+ 240.14 KiB
/wp-admin/edit.php0.451 s0.291 s-0.160 s3.79 MiB4.06 MiB+ 285.06 KiB
/wp-admin/post-new.php0.797 s1.126 s+0.329 s6.31 MiB6.62 MiB+ 317.31 KiB
/wp-admin/upload.php0.503 s0.928 s+0.425 s3.74 MiB3.96 MiB+ 223.35 KiB
/wp-admin/options-writing.php0.321 s0.392 s+0.071 s3.72 MiB3.92 MiB+ 207.03 KiB
/wp-admin/media-new.php0.487 s0.267 s-0.220 s3.71 MiB3.92 MiB+ 215.23 KiB
/wp-admin/edit-tags.php?taxonomy=category0.330 s0.291 s-0.039 s3.72 MiB3.96 MiB+ 245.9 KiB
/wp-admin/post-new.php?post_type=page1.317 s0.730 s-0.587 s6.3 MiB6.54 MiB+ 246.8 KiB
/wp-admin/options-discussion.php0.449 s0.419 s-0.030 s3.72 MiB3.92 MiB+ 203.53 KiB
/wp-admin/edit-comments.php0.353 s0.337 s-0.016 s3.74 MiB3.96 MiB+ 223.03 KiB
/0.302 s0.214 s-0.088 s4.12 MiB4.23 MiB+ 112.24 KiB
Average 0.572 s0.501 s-0.071 s4.24 MiB4.46 MiB+ 229.06 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
PHP89.6%9,9515,421131
Markdown9.5%1,05602
XML0.4%4501
JavaScript0.3%33010
SVG0.2%2103
CSS0.0%404
Total 11,110 5,421 151

PHP Code Analysis | More results »

Lines of code 7,762
Total complexity 1,463
Median class complexity 14.0
Median method complexity 1.0
Most complex class MC4WP_API_V3
Most complex function MC4WP_List_Data_Mapper::map_list()
Classes 70
Methods 564
Functions 44

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