84% back-to-top-pro

Code Review | Back To Top Pro

WordPress plugin Back To Top Pro scored84%from 54 tests.

About plugin

  • Plugin page: back-to-top-pro
  • Plugin version: 1.1.9
  • PHP version: 7.4.16
  • WordPress compatibility: 3.0.1-6.2.2
  • WordPress version: 6.3.1
  • First release: Nov 1, 2016
  • Latest release: Jul 25, 2023
  • Number of updates: 44
  • Update frequency: every 55.8 days
  • Top authors: zotabox (100%)

Code review

54 tests

User reviews

7 reviews

Install metrics

200+ active /11,327 total downloads

Benchmarks

Plugin footprint 83% from 16 tests

Installer Passed 1 test

🔺 Critical test (weight: 50) | The install procedure must perform silently
This plugin's installer ran successfully

Server metrics [RAM: ▲0.04MB] [CPU: ▼9.72ms] Passed 4 tests

An overview of server-side resources used by Back To Top Pro
No issues were detected with server-side resource usage
PageMemory (MB)CPU Time (ms)
Home /3.52 ▲0.0540.56 ▼0.09
Dashboard /wp-admin3.35 ▲0.0146.96 ▼16.49
Posts /wp-admin/edit.php3.40 ▲0.0545.90 ▼3.27
Add New Post /wp-admin/post-new.php5.94 ▲0.0581.21 ▼19.01
Media Library /wp-admin/upload.php3.28 ▲0.0544.13 ▲6.61

Server storage [IO: ▲0.18MB] [DB: ▲0.00MB] Passed 3 tests

How much does this plugin use your filesystem and database?
This plugin installed successfully
Filesystem: 10 new files
Database: no new tables, 14 new options
New WordPress options
theysaidso_admin_options
widget_recent-posts
widget_recent-comments
ztb_id
ztb_access_key
ztb_source
ztb_email
can_compress_scripts
ztb_domainid
widget_theysaidso_widget
...

Browser metrics Passed 4 tests

An overview of browser requirements for Back To Top Pro
Minimal impact on browser resources
PageNodesMemory (MB)Script (ms)Layout (ms)
Home /2,819 ▲4814.77 ▲0.091.65 ▼0.2243.35 ▲0.16
Dashboard /wp-admin2,228 ▲405.84 ▼0.22100.10 ▼12.8480.99 ▲34.99
Posts /wp-admin/edit.php2,111 ▲192.02 ▲0.0033.32 ▼1.8732.68 ▼1.01
Add New Post /wp-admin/post-new.php1,684 ▲15122.52 ▼0.68725.56 ▲52.9546.18 ▼18.13
Media Library /wp-admin/upload.php1,401 ▲164.27 ▲0.1198.96 ▼15.4871.40 ▲22.73

Uninstaller [IO: ▲0.00MB] [DB: ▲0.00MB] 75% from 4 tests

🔸 Tests weight: 35 | It is important to correctly uninstall your plugin, without leaving any traces
You still need to fix the following
  • This plugin does not fully uninstall, leaving 14 options in the database
    • ztb_email
    • theysaidso_admin_options
    • ztb_id
    • widget_recent-posts
    • ztb_domainid
    • widget_recent-comments
    • ztb_access_key
    • access_key
    • ztb_source
    • can_compress_scripts
    • ...

Smoke tests 75% from 4 tests

Server-side errors Passed 1 test

🔹 Test weight: 20 | A shallow check that no server-side errors were triggered
Even though no errors were found, this is by no means an exhaustive test

SRP 50% from 2 tests

🔹 Tests weight: 20 | It is important to ensure that your PHP files perform no action when accessed directly, respecting the single-responsibility principle
Please fix the following
  • 1× PHP files trigger errors when accessed directly with GET requests:
    • > PHP Fatal error
      Uncaught Error: Call to undefined function add_action() in wp-content/plugins/back-to-top-pro/back-to-top.php:15

User-side errors Passed 1 test

🔹 Test weight: 20 | A shallow check that no browser errors were triggered
Everything seems fine on the user side

Optimizations

Plugin configuration 93% from 29 tests

readme.txt 94% from 16 tests

It's important to format your readme.txt file correctly as it is parsed for the public listing of your plugin
These attributes need to be fixed:
  • Donate link: Please fix this invalid url: ""
You can take inspiration from this readme.txt

back-to-top-pro/back-to-top.php 92% from 13 tests

The main file in "Back To Top Pro" v. 1.1.9 serves as a complement to information provided in readme.txt and as the entry point to the plugin
You should first fix the following items:
  • Main file name: The principal plugin file should be the same as the plugin slug ("back-to-top-pro.php" instead of "back-to-top.php")

Code Analysis Passed 3 tests

File types Passed 1 test

🔸 Test weight: 35 | There should be no dangerous file extensions present in any WordPress plugin
Success! There were no dangerous files found in this plugin501 lines of code in 4 files:
LanguageFilesBlank linesComment linesLines of code
CSS234273
PHP11915188
JavaScript14040

PHP code Passed 2 tests

An overview of cyclomatic complexity and code structure
This plugin has no cyclomatic complexity problems
Cyclomatic complexity
Average complexity per logical line of code0.22
Average class complexity0.00
▷ Minimum class complexity0.00
▷ Maximum class complexity0.00
Average method complexity0.00
▷ Minimum method complexity0.00
▷ Maximum method complexity0.00
Code structure
Namespaces0
Interfaces0
Traits0
Classes0
▷ Abstract classes00.00%
▷ Concrete classes00.00%
▷ Final classes00.00%
Methods0
▷ Static methods00.00%
▷ Public methods00.00%
▷ Protected methods00.00%
▷ Private methods00.00%
Functions10
▷ Named functions10100.00%
▷ Anonymous functions00.00%
Constants0
▷ Global constants00.00%
▷ Class constants00.00%
▷ Public constants00.00%

Plugin size Passed 2 tests

Image compression Passed 2 tests

Often times overlooked, PNG files can occupy unnecessary space in your plugin
4 PNG files occupy 0.03MB with 0.02MB in potential savings
Potential savings
Compression of 4 random PNG files using pngquant
FileSize - originalSize - compressedSavings
assets/images/bg_body.png22.84KB9.83KB▼ 56.98%
zotabox.png3.19KB0.44KB▼ 86.31%
assets/images/logo-zotabox.png5.45KB2.43KB▼ 55.35%
assets/images/check.png2.96KB0.37KB▼ 87.47%