Constant Contact Forms 2.15.1

Does "Constant Contact Forms for WordPress" work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
5PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 488.62 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
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 20,000+
WordPress.org page https://wordpress.org/plugins/constant-contact-forms/
Badges

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Pages 14

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=constant-contact-forms%2Fconstant-contact-forms.php&plugin_status=all&paged=1&s&_wpnonce=ea56dd48c8
Aspect after-activation
HTTP status 200
Load time 0.441 s
Memory usage 4.31 MiB
JS errors None
Resource errors None

Contact form

Page screenshot: Contact form
URL /wp-admin/edit.php?post_type=ctct_forms
Aspect menu-item
HTTP status 200
Load time 0.393 s
Memory usage 4.26 MiB
JS errors None
Resource errors None

Contact form → Add new form

Page screenshot: Contact form → Add new form
URL /wp-admin/post-new.php?post_type=ctct_forms
Aspect menu-item
HTTP status 200
Load time 0.671 s
Memory usage 4.91 MiB
JS errors None
Resource errors None

Contact form → Lists

Page screenshot: Contact form → Lists
URL /wp-admin/edit.php?post_type=ctct_lists
Aspect menu-item
HTTP status 200
Load time 0.542 s
Memory usage 4.26 MiB
JS errors None
Resource errors None

Contact form → Connect Now

Page screenshot: Contact form → Connect Now
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_connect
Aspect menu-item
HTTP status 200
Load time 0.385 s
Memory usage 4.17 MiB
JS errors None
Resource errors None

Contact form → Settings

Page screenshot: Contact form → Settings
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_settings_general
Aspect menu-item
HTTP status 200
Load time 0.391 s
Memory usage 4.18 MiB
JS errors None
Resource errors None

Contact form → Settings → Styles

Page screenshot: Contact form → Settings → Styles
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_settings_styles
Aspect menu-item-tab
HTTP status 200
Load time 0.383 s
Memory usage 4.18 MiB
JS errors None
Resource errors None

Contact form → Settings → Opt-in

Page screenshot: Contact form → Settings → Opt-in
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_settings_optin
Aspect menu-item-tab
HTTP status 200
Load time 0.344 s
Memory usage 4.18 MiB
JS errors None
Resource errors None

Contact form → Settings → Spam control

Page screenshot: Contact form → Settings → Spam control
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_settings_spam
Aspect menu-item-tab
HTTP status 200
Load time 0.354 s
Memory usage 4.18 MiB
JS errors None
Resource errors None

Contact form → Settings → Support

Page screenshot: Contact form → Settings → Support
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_settings_support
Aspect menu-item-tab
HTTP status 200
Load time 0.365 s
Memory usage 4.18 MiB
JS errors None
Resource errors None

Contact form → Settings → Account

Page screenshot: Contact form → Settings → Account
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_settings_auth
Aspect menu-item-tab
HTTP status 200
Load time 0.447 s
Memory usage 4.18 MiB
JS errors None
Resource errors None

Contact form → About

Page screenshot: Contact form → About
URL /wp-admin/edit.php?post_type=ctct_forms&page=ctct_options_about
Aspect menu-item
HTTP status 200
Load time 1.077 s
Memory usage 4.18 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 0.414 s
Memory usage 4.31 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 1.032 s
Memory usage 6.55 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.373 s0.475 s+0.102 s3.77 MiB4.25 MiB+ 485.93 KiB
/wp-admin/edit.php0.353 s0.318 s-0.035 s3.78 MiB4.27 MiB+ 499.4 KiB
/wp-admin/post-new.php0.843 s0.923 s+0.080 s6.3 MiB7.05 MiB+ 760.3 KiB
/wp-admin/upload.php0.635 s0.525 s-0.110 s3.74 MiB4.16 MiB+ 437.55 KiB
/wp-admin/options-writing.php0.319 s0.336 s+0.017 s3.71 MiB4.14 MiB+ 441.85 KiB
/wp-admin/media-new.php0.481 s0.356 s-0.125 s3.7 MiB4.14 MiB+ 450.05 KiB
/wp-admin/edit-tags.php?taxonomy=category0.466 s0.315 s-0.151 s3.71 MiB4.16 MiB+ 454.91 KiB
/wp-admin/post-new.php?post_type=page0.678 s0.684 s+0.006 s6.29 MiB7.03 MiB+ 754.09 KiB
/wp-admin/options-discussion.php0.332 s0.413 s+0.081 s3.71 MiB4.14 MiB+ 438.04 KiB
/wp-admin/edit-comments.php0.322 s0.336 s+0.014 s3.73 MiB4.16 MiB+ 437.85 KiB
/0.273 s0.188 s-0.085 s4.1 MiB4.31 MiB+ 214.84 KiB
Average 0.461 s0.443 s-0.019 s4.23 MiB4.71 MiB+ 488.62 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
Language % Lines of code Comment lines Files
PHP72.7%20,88813,897211
Markdown8.0%2,298017
Sass6.2%1,7757819
CSS5.4%1,564155
JavaScript5.4%1,54366024
JSON2.0%58507
SVG0.1%3426
XML0.1%1901
YAML0.0%601
Bourne Shell0.0%301
Total 28,715 14,652 292

PHP Code Analysis | More results »

Lines of code 10,002
Total complexity 1,974
Median class complexity 19.0
Median method complexity 2.0
Most complex class ConstantContact_Display
Most complex function ConstantContact_Process_Form::process_form()
Classes 39
Methods 514
Functions 75

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 7

Custom Post Types 2

ID Name
ctct_formsForms
ctct_listsLists

Sidebar Widgets 1

ID Name
ctct_formConstant Contact Form

Meta Boxes

{
    "ctct_lists": {
        "ctct_list_metabox": {
            "title": "List Information",
            "context": "normal"
        }
    },
    "ctct_forms": {
        "ctct_0_description_metabox": {
            "title": "Form description",
            "context": "normal"
        },
        "ctct_0_list_metabox": {
            "title": "Constant Contact lists",
            "context": "normal"
        },
        "ctct_1_optin_metabox": {
            "title": "Form options",
            "context": "normal"
        },
        "ctct_2_fields_metabox": {
            "title": "Form fields",
            "context": "normal"
        },
        "ctct_2_generated_metabox": {
            "title": "Embed shortcode",
            "context": "side"
        },
        "email_settings": {
            "title": "Email settings",
            "context": "side"
        },
        "ctct_1_custom_form_css_metabox": {
            "title": "Form design",
            "context": "side"
        },
        "ctct_1_custom_input_css_metabox": {
            "title": "Input design",
            "context": "side"
        },
        "ctct_3_reset_css_metabox": {
            "title": "Reset styles",
            "context": "side"
        }
    }
}

PHP Error Log 5 lines

[11-Dec-2025 21:44:32 UTC] PHP Deprecated:  strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-admin/admin-header.php on line 41
[11-Dec-2025 21:44:33 UTC] PHP Deprecated:  strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-admin/admin-header.php on line 41
[11-Dec-2025 21:44:34 UTC] PHP Deprecated:  strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-admin/admin-header.php on line 41
[11-Dec-2025 21:44:35 UTC] PHP Deprecated:  strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-admin/admin-header.php on line 41
[11-Dec-2025 21:44:36 UTC] PHP Deprecated:  strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-admin/admin-header.php on line 41
See also: All tests for this plugin, How to Hide Constant Contact Forms for WordPress Admin Menus and Meta Boxes