Report - Simple Calendar 3.5.4

Does Simple Calendar work with WordPress 6.8.1 and PHP 8.1.12? A smoke test was performed on 2025-07-04 04:10:40 UTC.

Summary

Errors

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

Performance

Memory usage: 154.59 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	6.8.1
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=cc2db3c855
Aspect	after-activation
HTTP status	200
Load time	0.887 s
Memory usage	4.26 MiB
JS errors	None
Resource errors	None

Calendars

URL	/wp-admin/edit.php?post_type=calendar
Aspect	menu-item
HTTP status	200
Load time	0.278 s
Memory usage	3.72 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	1.263 s
Memory usage	4.24 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	0.243 s
Memory usage	3.66 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	0.306 s
Memory usage	3.74 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	3.358 s
Memory usage	N/A
JS errors	[ { "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	1.463 s
Memory usage	4 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.410 s
Memory usage	3.56 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	1.434 s
Memory usage	5.99 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.564 s	0.613 s	+0.049 s	3.51 MiB	3.66 MiB	+ 158.12 KiB
/wp-admin/edit.php	0.274 s	0.297 s	+0.023 s	3.57 MiB	3.75 MiB	+ 186.83 KiB
/wp-admin/post-new.php	0.866 s	1.667 s	+0.801 s	6.06 MiB	6.28 MiB	+ 229.08 KiB
/wp-admin/upload.php	0.816 s	0.352 s	-0.464 s	3.52 MiB	3.67 MiB	+ 144.79 KiB
/wp-admin/options-writing.php	0.217 s	0.222 s	+0.005 s	3.5 MiB	3.65 MiB	+ 148.1 KiB
/wp-admin/media-new.php	0.291 s	0.317 s	+0.026 s	3.49 MiB	3.64 MiB	+ 156.3 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.211 s	0.210 s	-0.001 s	3.5 MiB	3.66 MiB	+ 161.49 KiB
/wp-admin/post-new.php?post_type=page	1.279 s	0.965 s	-0.314 s	6.05 MiB	6.21 MiB	+ 164.95 KiB
/wp-admin/options-discussion.php	0.538 s	0.301 s	-0.237 s	3.5 MiB	3.64 MiB	+ 144.66 KiB
/wp-admin/edit-comments.php	0.277 s	0.221 s	-0.056 s	3.52 MiB	3.66 MiB	+ 144.1 KiB
/	0.360 s	0.300 s	-0.060 s	3.5 MiB	3.56 MiB	+ 62.04 KiB
Average	0.518 s	0.497 s	-0.021 s	3.98 MiB	4.13 MiB	+ 154.59 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	87.5%	12,421	6,267	74
	CSS	6.8%	960	167	1
	PO File	5.5%	783	455	1
	SVG	0.2%	33	0	1
Total			14,197	6,889	77

PHP Code Analysis | More results »

Lines of code	12,388
Total complexity	2,408
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	465
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

[04-Jul-2025 04:11:09 UTC] PHP Deprecated:  version_compare(): Passing null to parameter #1 ($version1) of type string is deprecated in /wp-content/plugins/google-calendar-events/includes/update.php on line 69
[04-Jul-2025 04:11:09 UTC] PHP Deprecated:  version_compare(): Passing null to parameter #1 ($version1) of type string is deprecated in /wp-content/plugins/google-calendar-events/includes/update.php on line 69

Simple Calendar 3.5.4