Yoast Duplicate Post 4.7

Does Yoast Duplicate Post work with WordPress 7.0 and PHP 8.1.12? A smoke test was performed on .

Summary

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

Memory usage: 149.33 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 version7.0
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 4,000,000+
WordPress.org page https://wordpress.org/plugins/duplicate-post/
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Pages 3

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=duplicate-post%2Fduplicate-post.php&plugin_status=all&paged=1&s&_wpnonce=751c09fea4
Aspect after-activation
HTTP status 200
Load time 0.557 s
Memory usage 4.11 MiB
JS errors None
Resource errors None

Settings → Duplicate Post

Page screenshot: Settings → Duplicate Post
URL /wp-admin/options-general.php?page=duplicatepost
Aspect menu-item
HTTP status 200
Load time 0.465 s
Memory usage 4.02 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 0.226 s
Memory usage 4.34 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.632 s0.698 s+0.066 s3.92 MiB4.1 MiB+ 177.3 KiB
/wp-admin/edit.php0.508 s0.510 s+0.002 s3.98 MiB4.14 MiB+ 160.38 KiB
/wp-admin/post-new.php1.973 s1.748 s-0.225 s6.56 MiB6.72 MiB+ 170.42 KiB
/wp-admin/upload.php0.684 s0.652 s-0.032 s3.89 MiB4.04 MiB+ 150.66 KiB
/wp-admin/options-writing.php0.507 s0.495 s-0.012 s3.86 MiB4 MiB+ 137.13 KiB
/wp-admin/media-new.php0.948 s0.943 s-0.005 s3.85 MiB3.99 MiB+ 145.33 KiB
/wp-admin/edit-tags.php?taxonomy=category0.568 s0.492 s-0.076 s3.86 MiB4.01 MiB+ 150.5 KiB
/wp-admin/post-new.php?post_type=page1.333 s1.339 s+0.006 s6.55 MiB6.71 MiB+ 165.95 KiB
/wp-admin/options-discussion.php0.628 s0.878 s+0.250 s3.86 MiB3.99 MiB+ 133.63 KiB
/wp-admin/edit-comments.php0.508 s0.525 s+0.017 s3.88 MiB4.02 MiB+ 140.49 KiB
/0.270 s0.179 s-0.091 s4.23 MiB4.34 MiB+ 110.84 KiB
Average 0.778 s0.769 s-0.009 s4.4 MiB4.55 MiB+ 149.33 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
PHP93.9%4,1372,45341
CSS3.1%13842
JSON3.0%13101
Total 4,406 2,457 44

PHP Code Analysis | More results »

Lines of code 3,885
Total complexity 788
Median class complexity 11.0
Median method complexity 2.0
Most complex class Yoast\WP\Duplicate_Post\UI\Classic_Editor
Most complex function duplicate_post_create_duplicate()
Classes 34
Methods 215
Functions 30

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 25

Capabilities 1

PHP Error Log 3 lines

[22-Jun-2026 11:33:13 UTC] PHP Warning:  Undefined array key "HTTP_HOST" in /wp-config.php on line 174
[22-Jun-2026 11:33:13 UTC] PHP Warning:  Undefined array key "HTTP_HOST" in /wp-config.php on line 175
[22-Jun-2026 11:33:13 UTC] PHP Deprecated:  strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-includes/link-template.php on line 4881
See also: All tests for this plugin, How to Hide the "Duplicate Post" Admin Menu