Contact Form 7 Extension For Mailchimp 0.5.31

Does "Contact Form 7 Extension For Mailchimp" work with WordPress 5.6 and PHP 7.4.8? A smoke test was performed on .

Summary

Errors
1PHP notices
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 214.35 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 version5.6
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 50,000+
WordPress.org page https://wordpress.org/plugins/contact-form-7-mailchimp-extension/
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Pages 5

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=contact-form-7-mailchimp-extension%2Fchimpmatic-lite.php&plugin_status=all&paged=1&s&_wpnonce=c478525aa1
Aspect after-activation
HTTP status 200
Load time 1.149 s
Memory usage 3.96 MiB
JS errors None
Resource errors None

Contact

Page screenshot: Contact
URL /wp-admin/admin.php?page=wpcf7
Aspect menu-item
HTTP status 200
Load time 0.260 s
Memory usage 4.58 MiB
JS errors None
Resource errors None

Contact → Add New

Page screenshot: Contact → Add New
URL /wp-admin/admin.php?page=wpcf7-new
Aspect menu-item
HTTP status 200
Load time 1.636 s
Memory usage 4.69 MiB
JS errors None
Resource errors None

Contact → Integration

Page screenshot: Contact → Integration
URL /wp-admin/admin.php?page=wpcf7-integration
Aspect menu-item
HTTP status 200
Load time 0.231 s
Memory usage 3.03 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 2.78 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.290 s0.258 s-0.032 s2.79 MiB2.99 MiB+ 198.73 KiB
/wp-admin/edit.php0.184 s0.235 s+0.051 s2.84 MiB3.04 MiB+ 204.53 KiB
/wp-admin/post-new.php0.791 s0.930 s+0.139 s4.94 MiB5.17 MiB+ 238.87 KiB
/wp-admin/upload.php0.664 s0.421 s-0.243 s2.67 MiB2.92 MiB+ 253.91 KiB
/wp-admin/options-writing.php0.223 s0.180 s-0.043 s2.68 MiB2.9 MiB+ 221.9 KiB
/wp-admin/media-new.php0.196 s0.195 s-0.001 s2.65 MiB2.89 MiB+ 254.09 KiB
/wp-admin/edit-tags.php?taxonomy=category0.162 s0.182 s+0.020 s2.68 MiB2.93 MiB+ 255.02 KiB
/wp-admin/post-new.php?post_type=page0.879 s0.981 s+0.102 s4.92 MiB5.09 MiB+ 170.52 KiB
/wp-admin/options-discussion.php0.272 s0.353 s+0.081 s2.65 MiB2.9 MiB+ 254.41 KiB
/wp-admin/edit-comments.php0.200 s0.228 s+0.028 s2.75 MiB2.93 MiB+ 189.95 KiB
/0.235 s0.248 s+0.013 s2.67 MiB2.78 MiB+ 115.95 KiB
Average 0.372 s0.383 s+0.010 s3.11 MiB3.32 MiB+ 214.35 KiB

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 9

Custom Post Types 1

ID Name
wpcf7_contact_formContact Forms

PHP Error Log 1 lines

[15-Dec-2020 15:52:42 UTC] PHP Notice:  Trying to access array offset on value of type null in /wp-content/plugins/contact-form-7-mailchimp-extension/lib/find.php on line 157
See also: All tests for this plugin, How to Hide Contact Form 7 Extension For Mailchimp Admin Menus