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MC4WP: Mailchimp for WordPress 4.8.7

Does MC4WP: Mailchimp for WordPress work with WordPress 6.0 and PHP 7.4.8? 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: 169.46 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 version6.0
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 2,000,000+
WordPress.org page https://wordpress.org/plugins/mailchimp-for-wp/
Badges

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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=bcfc9acf62
Aspect after-activation
HTTP status 200
Load time 0.320 s
Memory usage 4 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 0.232 s
Memory usage 3.87 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 0.274 s
Memory usage 3.88 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 0.182 s
Memory usage 3.89 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 0.202 s
Memory usage 3.89 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 0.189 s
Memory usage 3.86 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 0.218 s
Memory usage 3.65 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 1.527 s
Memory usage 5.63 MiB
JS errors
External errors: The following JavaScript errors were probably triggered by WordPress itself, or by compatibility issues in the test runner. They are not related to the plugin. 
[
    {
        "message": "TypeError: Cannot read properties of null (reading 'offsetHeight')\n    at t (/wp-includes/js/dist/widgets.min.js?ver=80e98954519d1dad7a91a2248dbc2cc9:7:10419)\n    at IntersectionObserver.n.threshold (/wp-includes/js/dist/widgets.min.js?ver=80e98954519d1dad7a91a2248dbc2cc9:7:10591)",
        "trace": null,
        "code": null
    }
]
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.491 s0.278 s-0.213 s3.72 MiB3.89 MiB+ 173.24 KiB
/wp-admin/edit.php0.185 s0.208 s+0.023 s3.75 MiB3.92 MiB+ 171.41 KiB
/wp-admin/post-new.php0.786 s0.988 s+0.202 s5.53 MiB5.67 MiB+ 137.12 KiB
/wp-admin/upload.php0.433 s0.390 s-0.043 s3.68 MiB3.85 MiB+ 172.11 KiB
/wp-admin/options-writing.php0.303 s0.154 s-0.149 s3.61 MiB3.82 MiB+ 215.69 KiB
/wp-admin/media-new.php0.312 s0.157 s-0.155 s3.66 MiB3.83 MiB+ 172.28 KiB
/wp-admin/edit-tags.php?taxonomy=category0.244 s0.196 s-0.048 s3.68 MiB3.85 MiB+ 172.45 KiB
/wp-admin/post-new.php?post_type=page0.648 s0.825 s+0.177 s5.53 MiB5.66 MiB+ 132.75 KiB
/wp-admin/options-discussion.php0.253 s0.279 s+0.026 s3.59 MiB3.82 MiB+ 236.17 KiB
/wp-admin/edit-comments.php0.231 s0.196 s-0.035 s3.69 MiB3.86 MiB+ 171.4 KiB
/0.290 s0.209 s-0.081 s3.55 MiB3.65 MiB+ 109.48 KiB
Average 0.380 s0.353 s-0.027 s4 MiB4.17 MiB+ 169.46 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
JavaScript
CSS
Language % Lines of code Comment lines Files
PHP68.4%8,3425,373123
JavaScript14.7%1,79619137
CSS8.1%988408
Markdown7.2%87701
SVG0.8%9513
XML0.7%9102
Total 12,189 5,605 174

PHP Code Analysis | More results »

Lines of code 6,940
Total complexity 1,404
Median class complexity 13.5
Median method complexity 1.0
Most complex class \MC4WP_API_V3
Most complex function _mc4wp_update_groupings_data()
Classes 66
Methods 555
Functions 55

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