ICS Calendar 11.7.0.3

Does ICS Calendar work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
1PHP notices
4PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 69.76 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 10,000+
WordPress.org page https://wordpress.org/plugins/ics-calendar/
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Pages 3

ICS Calendar ‹ Test site — WordPress

Page screenshot: ICS Calendar ‹ Test site — WordPress
URL /wp-admin/admin.php?page=ics-calendar
Requested URL /wp-admin/plugins.php?action=activate&plugin=ics-calendar%2Fics-calendar.php&plugin_status=all&paged=1&s&_wpnonce=97d28dae6f
Aspect after-activation
HTTP status 200
Load time 0.727 s
Memory usage 3.77 MiB
JS errors None
Resource errors None

ICS Calendar

Page screenshot: ICS Calendar
URL /wp-admin/admin.php?page=ics-calendar
Aspect menu-item
HTTP status 200
Load time 0.355 s
Memory usage 3.75 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 0.205 s
Memory usage 4.17 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.430 s0.366 s-0.064 s3.77 MiB3.86 MiB+ 84.38 KiB
/wp-admin/edit.php0.364 s0.445 s+0.081 s3.78 MiB3.9 MiB+ 119.18 KiB
/wp-admin/post-new.php0.864 s0.882 s+0.018 s6.3 MiB6.41 MiB+ 105.39 KiB
/wp-admin/upload.php0.561 s0.448 s-0.113 s3.74 MiB3.78 MiB+ 40.71 KiB
/wp-admin/options-writing.php0.322 s0.313 s-0.009 s3.71 MiB3.75 MiB+ 44.7 KiB
/wp-admin/media-new.php0.524 s0.358 s-0.166 s3.7 MiB3.75 MiB+ 52.9 KiB
/wp-admin/edit-tags.php?taxonomy=category0.385 s0.480 s+0.095 s3.71 MiB3.77 MiB+ 63.26 KiB
/wp-admin/post-new.php?post_type=page0.683 s0.721 s+0.038 s6.29 MiB6.39 MiB+ 98.82 KiB
/wp-admin/options-discussion.php0.347 s0.574 s+0.227 s3.71 MiB3.75 MiB+ 41.2 KiB
/wp-admin/edit-comments.php0.319 s0.354 s+0.035 s3.73 MiB3.77 MiB+ 40.7 KiB
/0.426 s0.236 s-0.190 s4.1 MiB4.18 MiB+ 76.07 KiB
Average 0.475 s0.471 s-0.004 s4.23 MiB4.3 MiB+ 69.76 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.

PO File
PHP
Language % Lines of code Comment lines Files
PO File81.6%28,95916,74039
PHP15.7%5,5581,30960
JavaScript1.6%5631072
CSS1.1%38592
SVG0.0%707
Total 35,472 18,165 110

PHP Code Analysis | More results »

Lines of code 4,054
Total complexity 1,338
Median class complexity 781.0
Median method complexity 4.5
Most complex class R34ICS
Most complex function R34ICS::display_calendar()
Classes 1
Methods 62
Functions 89

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

PHP Error Log 5 lines

[03-Dec-2025 14:27:07 UTC] PHP Notice:  Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>ics-calendar</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href="https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /wp-includes/functions.php on line 6131
[03-Dec-2025 14:27:10 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[03-Dec-2025 14:27:10 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[03-Dec-2025 14:27:19 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[03-Dec-2025 14:27:19 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
See also: All tests for this plugin, How to Hide the "ICS Calendar" Admin Menu