Report - Simple Calendar 3.6.2

Does Simple Calendar work with WordPress 7.0 and PHP 8.1.12? A smoke test was performed on 2026-05-21 02:19:07 UTC.

Summary

Errors

2	PHP deprecation warnings
2	JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 170.47 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 version	7.0
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-05-28T07:05:00+00:00
Active installs	50,000+
WordPress.org page	https://wordpress.org/plugins/google-calendar-events/
Badges	Get badge code

Pages 9

Welcome to Simple Calendar ‹ Test site — WordPress

URL	/wp-admin/index.php?page=simple-calendar_about#038;simcal_install=fresh
Requested URL	/wp-admin/plugins.php?action=activate&plugin=google-calendar-events%2Fgoogle-calendar-events.php&plugin_status=all&paged=1&s&_wpnonce=160ace080c
Aspect	after-activation
HTTP status	200
Load time	1.192 s
Memory usage	4.63 MiB
JS errors	None
Resource errors	None

Calendars

URL	/wp-admin/edit.php?post_type=calendar
Aspect	menu-item
HTTP status	200
Load time	0.735 s
Memory usage	4.1 MiB
JS errors	None
Resource errors	None

Calendars → Add New Calendar

URL	/wp-admin/post-new.php?post_type=calendar
Aspect	menu-item
HTTP status	200
Load time	1.530 s
Memory usage	4.59 MiB
JS errors	None
Resource errors	None

Calendars → Categories

URL	/wp-admin/edit-tags.php?taxonomy=calendar_category&post_type=calendar
Aspect	menu-item
HTTP status	200
Load time	0.543 s
Memory usage	4.04 MiB
JS errors	None
Resource errors	None

Calendars → Settings

URL	/wp-admin/edit.php?post_type=calendar&page=simple-calendar_settings
Aspect	menu-item
HTTP status	200
Load time	0.844 s
Memory usage	4.18 MiB
JS errors	None
Resource errors	None

Calendars → Add-ons

URL	https://simplecalendar.io/addons/?utm_source=inside-plugin#038;utm_medium=link&utm_campaign=core-plugin&utm_content=plugin-submenu-link
Requested URL	/wp-admin/edit.php?post_type=calendar&page=simple-calendar_add_ons
Aspect	menu-item
HTTP status	200
Load time	3.375 s
Memory usage	N/A
JS errors	[ { "message": "ReferenceError: wp is not defined\n at wp-i18n-js-after:1179:1", "trace": null, "code": null }, { "message": "Error: Syntax error, unrecognized expression: #my-account-038;utm_medium=link&utm_campaign=core-plugin&utm_content=plugin-submenu-link\n at Function.I.error (https://simplecalendar.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:11769)\n at Y (https://simplecalendar.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:17234)\n at re (https://simplecalendar.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:20008)\n at Function.I (https://simplecalendar.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:7520)\n at Function.<anonymous> (https://simplecalendar.io/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1:2:2898)\n at Function.e.<computed> [as find] (https://simplecalendar.io/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1:2:1582)\n at ce.fn.init.find (https://simplecalendar.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:21991)\n at e.<computed>.ce.fn.init (https://simplecalendar.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:22483)\n at e.<computed>.<anonymous> (https://simplecalendar.io/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1:2:2438)\n at new e.<computed> (https://simplecalendar.io/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1:2:1582)", "trace": null, "code": null } ]
Resource errors	None

Calendars → Tools

URL	/wp-admin/edit.php?post_type=calendar&page=simple-calendar_tools
Aspect	menu-item
HTTP status	200
Load time	1.740 s
Memory usage	4.43 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.265 s
Memory usage	4.34 MiB
JS errors	None
Resource errors	None

Widgets ‹ Test site — WordPress

URL	/wp-admin/widgets.php
Aspect	new-sidebar-widgets
HTTP status	200
Load time	1.429 s
Memory usage	6.59 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.699 s	0.668 s	-0.031 s	3.92 MiB	4.12 MiB	+ 200.66 KiB
/wp-admin/edit.php	0.905 s	0.797 s	-0.108 s	3.98 MiB	4.16 MiB	+ 181.21 KiB
/wp-admin/post-new.php	1.654 s	1.828 s	+0.174 s	6.56 MiB	6.76 MiB	+ 206.94 KiB
/wp-admin/upload.php	0.996 s	0.664 s	-0.332 s	3.89 MiB	4.05 MiB	+ 165.41 KiB
/wp-admin/options-writing.php	0.542 s	0.533 s	-0.009 s	3.86 MiB	4.01 MiB	+ 156.35 KiB
/wp-admin/media-new.php	0.554 s	0.943 s	+0.389 s	3.85 MiB	4.01 MiB	+ 164.49 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.670 s	0.523 s	-0.147 s	3.86 MiB	4.03 MiB	+ 169.69 KiB
/wp-admin/post-new.php?post_type=page	1.598 s	1.377 s	-0.221 s	6.55 MiB	6.75 MiB	+ 207.12 KiB
/wp-admin/options-discussion.php	0.638 s	0.597 s	-0.041 s	3.86 MiB	4.01 MiB	+ 152.85 KiB
/wp-admin/edit-comments.php	0.517 s	0.535 s	+0.018 s	3.88 MiB	4.03 MiB	+ 153.2 KiB
/	0.263 s	0.213 s	-0.050 s	4.23 MiB	4.34 MiB	+ 117.2 KiB
Average	0.821 s	0.789 s	-0.033 s	4.4 MiB	4.57 MiB	+ 170.47 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
	PHP	87.7%	12,699	6,401	74
	CSS	6.6%	960	167	1
	PO File	5.4%	783	455	1
	SVG	0.2%	33	0	1
Total			14,475	7,023	77

PHP Code Analysis | More results »

Lines of code	12,666
Total complexity	2,490
Median class complexity	24.0
Median method complexity	3.0
Most complex class	SimpleCalendar\Browser
Most complex function	SimpleCalendar\Events\Event_Builder::process_event_content()

Classes	64
Methods	474
Functions	41

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` 3

simple-calendar_admin_notices
simple-calendar_version
widget_gce_widget

Custom Post Types 1

ID	Name
calendar	Calendars

Sidebar Widgets 1

ID	Name
gce_widget	Simple Calendar

Meta Boxes

{
    "calendar": {
        "simcal-calendar-settings": {
            "title": "Calendar Settings",
            "context": "normal"
        },
        "simcal-upgrade": {
            "title": "Looking for more?",
            "context": "side"
        },
        "simcal-get-shortcode": {
            "title": "Calendar Shortcode",
            "context": "side"
        }
    }
}

PHP Error Log 2 lines

[21-May-2026 02:19:33 UTC] PHP Deprecated:  version_compare(): Passing null to parameter #1 ($version1) of type string is deprecated in /wp-content/plugins/google-calendar-events/includes/update.php on line 69
[21-May-2026 02:19:33 UTC] PHP Deprecated:  version_compare(): Passing null to parameter #1 ($version1) of type string is deprecated in /wp-content/plugins/google-calendar-events/includes/update.php on line 69

Simple Calendar 3.6.2