POP – Free European electronic invoicing for e-commerce (ex-WooPop) 6.5.5

Does "POP – Free Electronic Invoices & Legal Documents Generator for eCommerce (ex-WooPop)" work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
2PHP fatal errors
No JavaScript exceptions
1Page failed to load
  • 1 500 Internal Server Error
No resource errors
Performance

Memory usage: 205.23 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 70+
WordPress.org page https://wordpress.org/plugins/woopop-electronic-invoice-free/
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Pages 11

Electronic Invoice - Settings ‹ Test site — WordPress

Page screenshot: Electronic Invoice - Settings ‹ Test site — WordPress
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=wizard&wizard=init
Requested URL /wp-admin/plugins.php?action=activate&plugin=woopop-electronic-invoice-free%2Findex.php&plugin_status=all&paged=1&s&_wpnonce=7504f07ccf
Aspect after-activation
HTTP status 200
Load time 2.334 s
Memory usage 3.88 MiB
JS errors None
Resource errors None

POP

Page screenshot: POP
URL /wp-admin/admin.php?page=wc_el_inv-options-page
Aspect menu-item
HTTP status 200
Load time 0.302 s
Memory usage 3.89 MiB
JS errors None
Resource errors None

POP → General

Page screenshot: POP → General
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=general
Aspect menu-item
HTTP status 200
Load time 0.293 s
Memory usage 3.88 MiB
JS errors None
Resource errors None

POP → Checkout

Page screenshot: POP → Checkout
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=provider-integration
Aspect menu-item
HTTP status 200
Load time 0.334 s
Memory usage 3.91 MiB
JS errors None
Resource errors None

POP → Numeration

Page screenshot: POP → Numeration
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=numeration
Aspect menu-item
HTTP status 200
Load time 0.361 s
Memory usage 3.93 MiB
JS errors None
Resource errors None

POP → Documents

Page screenshot: POP → Documents
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=invoice
Aspect menu-item
HTTP status 200
Load time 0.292 s
Memory usage 3.93 MiB
JS errors None
Resource errors None

POP → Advanced

Page screenshot: POP → Advanced
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=advanced
Aspect menu-item
HTTP status 200
Load time 0.297 s
Memory usage 4.4 MiB
JS errors None
Resource errors None

POP → Invoices

Page screenshot: POP → Invoices
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=xml
Aspect menu-item
HTTP status 200
Load time 0.275 s
Memory usage 3.98 MiB
JS errors None
Resource errors None

POP → Integrations

Page screenshot: POP → Integrations
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=integration
Aspect menu-item
HTTP status 200
Load time 0.301 s
Memory usage 4.1 MiB
JS errors None
Resource errors None

POP → Wizard setup

Page screenshot: POP → Wizard setup
URL /wp-admin/admin.php?page=wc_el_inv-options-page&tab=wizard&wizard=init
Aspect menu-item
HTTP status 200
Load time 0.261 s
Memory usage 3.88 MiB
JS errors None
Resource errors None

WordPress › Error

Page screenshot: WordPress › Error
URL /
Aspect front-page
HTTP status 500
Load time 0.050 s
Memory usage N/A
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.413 s0.442 s+0.029 s3.77 MiB3.97 MiB+ 201.8 KiB
/wp-admin/edit.php0.353 s0.424 s+0.071 s3.78 MiB4.02 MiB+ 245.53 KiB
/wp-admin/post-new.php0.846 s0.843 s-0.003 s6.3 MiB6.55 MiB+ 253.19 KiB
/wp-admin/upload.php0.649 s0.473 s-0.176 s3.74 MiB3.91 MiB+ 178.2 KiB
/wp-admin/options-writing.php0.327 s0.341 s+0.014 s3.71 MiB3.89 MiB+ 182.6 KiB
/wp-admin/media-new.php0.487 s0.478 s-0.009 s3.7 MiB3.89 MiB+ 190.8 KiB
/wp-admin/edit-tags.php?taxonomy=category0.321 s0.333 s+0.012 s3.71 MiB3.9 MiB+ 195.75 KiB
/wp-admin/post-new.php?post_type=page0.788 s0.678 s-0.110 s6.29 MiB6.53 MiB+ 246.98 KiB
/wp-admin/options-discussion.php0.326 s0.350 s+0.024 s3.71 MiB3.89 MiB+ 178.79 KiB
/wp-admin/edit-comments.php0.313 s0.361 s+0.048 s3.73 MiB3.91 MiB+ 178.7 KiB
Average 0.482 s0.472 s-0.010 s4.24 MiB4.44 MiB+ 205.23 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
JavaScript
Language % Lines of code Comment lines Files
PHP71.3%53,71020,270244
JavaScript11.0%8,2621,51087
PO File6.7%5,0722,8367
CSS5.9%4,478956
XSLT4.2%3,178591
Markdown0.5%38301
XML0.2%11502
SVG0.1%8814
HTML0.1%5701
JSON0.0%3301
Total 75,376 24,771 354

PHP Code Analysis | More results »

Lines of code 37,576
Total complexity 9,005
Median class complexity 11.5
Median method complexity 1.0
Most complex class WcElectronInvoice\WooCommerce\Fields\InvoiceFields
Most complex function WcElectronInvoice\Xml\CreateXml::createFromCloud()
Classes 142
Methods 1,320
Functions 196

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 10

PHP Error Log 20 lines

[08-Dec-2025 08:06:16 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function wc_get_page_id() in /wp-content/plugins/woopop-electronic-invoice-free/index.php:169
Stack trace:
#0 /wp-includes/class-wp-hook.php(341): {closure}()
#1 /wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#2 /wp-includes/plugin.php(522): WP_Hook->do_action()
#3 /wp-includes/template-loader.php(23): do_action()
#4 /wp-blog-header.php(19): require_once('...')
#5 /index.php(17): require('...')
#6 {main}
  thrown in /wp-content/plugins/woopop-electronic-invoice-free/index.php on line 169
[08-Dec-2025 08:06:25 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function wc_get_page_id() in /wp-content/plugins/woopop-electronic-invoice-free/index.php:169
Stack trace:
#0 /wp-includes/class-wp-hook.php(341): {closure}()
#1 /wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#2 /wp-includes/plugin.php(522): WP_Hook->do_action()
#3 /wp-includes/template-loader.php(23): do_action()
#4 /wp-blog-header.php(19): require_once('...')
#5 /index.php(17): require('...')
#6 {main}
  thrown in /wp-content/plugins/woopop-electronic-invoice-free/index.php on line 169
See also: All tests for this plugin, How to Hide POP – Free Electronic Invoices & Legal Documents Generator for eCommerce (ex-WooPop) Admin Menus