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Sebastian Bergmann on GitHub

Sebastian Bergmann

@sebastianbergmann

Sebastian Bergmann is the creator of PHPUnit. He co-founded thePHP.cc and helps PHP teams build better software.

  • @thePHPcc
  • Siegburg, Germany
  • 152K
    Total stars
  • 7,643
    Followers
  • 70
    Public repos
  • 4,634
    Contributions

0 following

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Profile tree

  • Contributions: 4,634. Past 12 months.
  • Followers: 7,643. People who follow you.
  • Total stars: 152,121. Across all repos.
  • Following: 0. People you follow.
  • Public repos: 70. Owned, non-fork.

A living snapshot

Every leaf is a headline number from Sebastian Bergmann’s public GitHub. The canopy fills out as the work grows - sway and all.

  • 4,634 Contributions Past 12 months
  • 7,643 Followers People who follow you
  • 152K Total stars Across all repos
  • 0 Following People you follow
  • 70 Public repos Owned, non-fork

Data from GitHub API · refreshed in real time

What your GitHub says

Based on public GitHub activity · how this is calculated

  • HTML is the largest language share across analyzed repositories, at 58%.

    High confidence

  • Public visibility is broadly distributed across analyzed repositories rather than concentrated in one or two projects.

    Medium confidence

  • Public GitHub activity is implementation-heavy: commits account for 96% of tracked contribution activity.

    Medium confidence

  • 23 of 40 analyzed repositories were pushed to in the last 6 months.

    Medium confidence

  • This analysis covers 40 of 70 public repositories (57%); broader totals may differ.

    High confidence

Profile health

Signals from analyzed public data

Activity 100

Strong

  • 4,634 contributions in the trailing year
  • 5-day current streak
Portfolio 70

Developing

  • 23 of 40 analyzed repositories are actively maintained
  • 152,121 stars across analyzed repositories
Discoverability 56

Developing

  • Every analyzed repository has a description
  • 33 of 40 have no topic tags
Maintenance 57

Developing

  • 23 of 40 analyzed repositories were pushed to in the last 6 months
  • 3 show no public activity in over a year
Collaboration 3

Needs work

  • 88 pull requests and 8 code reviews in the trailing year

Recruiter snapshot

A skim of public evidence, not a hiring judgement

Technical focus
HTML / PHP / XSLT / JavaScript

Largest language shares across analyzed repositories

Project depth
23 of 40

Analyzed repositories rated established or maintained

Collaboration
88 PRs / 8 reviews

Public pull requests and code reviews in the trailing year

Community signals
152,121 stars / 4,699 forks

Summed across analyzed repositories

Recent activity
12 of last 12 months

Calendar months with at least one tracked contribution

Strongest signals

  • 4,634 contributions in the trailing year
  • 23 of 40 analyzed repositories are actively maintained

4,634
Contributions
Past 12 months
5
Current streak
Sep 19, 2026 – Sep 23, 2026
38
Longest streak
May 3, 2026 – Jun 9, 2026
Sep Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Mon Wed Fri
Less More

Language distribution for sebastianbergmann HTML 58.2%, PHP 34.8%, XSLT 6.2%, JavaScript 0.5%, Java 0.1%, CSS 0.1%, Other 0.1%
  • HTML 58.2%
  • PHP 34.8%
  • XSLT 6.2%
  • JavaScript 0.5%
  • Java 0.1%
  • CSS 0.1%
  • Other 0.1%

Frontend Backend Mobile DevOps Data AI Security Embedded Game Dev
  • Backend 100
  • Frontend 8
  • Data 5
  • DevOps 3
  • Embedded 3
  • Mobile 0
  • AI 0
  • Security 0
  • Game Dev 0

Longest streak
38d
May 2026
Favourite coding day
Wednesday
781 contributions
Most active year
2023
5,091 contributions
Signature language
HTML
58% of tracked code
Flagship repository
phpunit
20,052 stars
On GitHub since
2008
18 years and counting

Across their public repositories, Sebastian Bergmann works mainly in HTML, which accounts for roughly 58% of their committed code, alongside PHP and XSLT. They have 70 public repositories, which together have earned 152,121 stars, led by phpunit at 20,052. Their activity over the last twelve months totals 4,634 contributions, including a longest run of 38 consecutive active days. Sebastian Bergmann has been on GitHub since 2008 and is followed by 7,643 developers.

This overview is generated from Sebastian Bergmann’s public GitHub activity at the time of the last refresh. Figures cover public repositories and the trailing twelve months of contributions.

  1. 01

    Add topics to php-code-coverage

    Low impact

    php-code-coverage has no topic tags, making its technology harder to discover.

    php-code-coverage →
  2. 02

    Add topics to php-timer

    Low impact

    php-timer has no topic tags, making its technology harder to discover.

    php-timer →
  3. 03

    Add topics to diff

    Low impact

    diff has no topic tags, making its technology harder to discover.

    diff →
  4. 04

    Add topics to php-file-iterator

    Low impact

    php-file-iterator has no topic tags, making its technology harder to discover.

    php-file-iterator →
  5. 05

    Add topics to php-text-template

    Low impact

    php-text-template has no topic tags, making its technology harder to discover.

    php-text-template →

How these are calculated: see the methodology page .

phpunit

The PHP Unit Testing framework.

  • php
  • phpunit
  • testing-tools
PHP 20,052 ★ 2,210 forks 17 issues today
BSD-3-Clause Live demo GitHub
php-code-coverage

Library that provides collection, processing, and rendering functionality for PHP code coverage information.

PHP 8,925 ★ 385 forks 5 issues 2d ago
BSD-3-Clause GitHub
php-timer

Utility class for timing

PHP 7,736 ★ 63 forks 1 issues 2d ago
BSD-3-Clause GitHub
diff

Diff implementation

PHP 7,650 ★ 89 forks 1 issues 2d ago
BSD-3-Clause GitHub
php-file-iterator

FilterIterator implementation that filters files based on a list of suffixes, prefixes, and other exclusion criteria.

PHP 7,477 ★ 47 forks 1 issues 2d ago
BSD-3-Clause GitHub
comparator

Provides the functionality to compare PHP values for equality.

PHP 7,046 ★ 74 forks 1 issues 2d ago
BSD-3-Clause GitHub
exporter

Provides the functionality to export PHP variables for visualization

PHP 6,811 ★ 40 forks 1 issues 2d ago
BSD-3-Clause GitHub
environment

Provides functionality that helps writing PHP code that has runtime-specific execution paths

PHP 6,767 ★ 36 forks 1 issues 7d ago
BSD-3-Clause GitHub

Most popular
phpunit

20,052 stars

Most recently active
phpunit

Last pushed 1d ago

Longest maintained
php-code-coverage

Active for 17.3y

Most discoverable
phpunit

100% of discoverability signals present

phpunit

The PHP Unit Testing framework.

PHP 20,052 ★ 2,210 forks

  • phpunit 20,052 ★

    The PHP Unit Testing framework.

  • php-code-coverage 8,925 ★

    Library that provides collection, processing, and rendering functionality for PHP code coverage information.

  • php-timer 7,736 ★

    Utility class for timing

  • diff 7,650 ★

    Diff implementation

  • php-file-iterator 7,477 ★

    FilterIterator implementation that filters files based on a list of suffixes, prefixes, and other exclusion criteria.

  • php-text-template 7,425 ★

    A simple template engine.

All repositories →

Public visibility is broadly distributed across many analyzed repositories.

Top 1 repository 13% of stars
Top 3 repositories 24% of stars
Top 5 repositories 34% of stars

Leading repository: phpunit (20,052 stars, 152,121 total across analyzed repositories)

Technology breakdown

Derived from repository languages and topics - horizontal bars, never a pie.

Languages

  • HTML 58%
  • PHP 35%
  • XSLT 6%
  • JavaScript 1%
  • Java 0%
  • CSS 0%

README, contributing-guide and GitHub Actions badges below are detected by exact filename on each repository’s default branch - they report presence, not quality.

  • phpunit Established
    Popularity 100
    Discoverability 100
    Maintenance 100
    README No contributing guide CI: 6 workflows
  • php-code-coverage Established
    Popularity 43
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • php-timer Established
    Popularity 36
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • diff Established
    Popularity 36
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • php-file-iterator Established
    Popularity 35
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • php-text-template Established
    Popularity 34
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • comparator Established
    Popularity 33
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • exporter Established
    Popularity 32
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • environment Established
    Popularity 31
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • global-state Established
    Popularity 31
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • complexity Established
    Popularity 6
    Discoverability 75
    Maintenance 100
    README No contributing guide CI: 4 workflows
  • version Established
    Popularity 30
    Discoverability 50
    Maintenance 100
    README No contributing guide CI: 4 workflows

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Contato
Experiência
Formação

70
Public repos
40 analyzed
152K
Total stars
Across all repos
4,634
Contributions
Past 12 months
88
Pull requests
Opened this year
11
Public gists
Snippets shared
18 y
Account age
Since 2008
100 %
Profile score
Completeness

Repository explorer

→

Name Language Stars Forks Size Updated

Coding statistics

→
Largest repository
273.6 MB
phpunit
Smallest repository
41 KB
git
Oldest repository
Jan 22, 2009
phploc
Newest repository
Mar 22, 2023
csv-parser
Most starred
20,052 ★
phpunit
Most forked
2,210 forks
phpunit
Most watched
306 watchers
phpunit
Longest description
117 characters
php-file-iterator
Most open issues
17 open
phpunit

Contribution patterns

→

By year

  • 2026
    3,734
  • 2025
    3,557
  • 2024
    3,770
  • 2023
    5,091
  • 2022
    3,094
  • 2021
    3,129

By day of week

  • Sun
    528
  • Mon
    593
  • Tue
    670
  • Wed
    781
  • Thu
    735
  • Fri
    758
  • Sat
    569

Best coding day: Wed

By month (last 12)

  • Oct
    138
  • Nov
    154
  • Dec
    332
  • Jan
    296
  • Feb
    408
  • Mar
    391
  • Apr
    670
  • May
    836
  • Jun
    220
  • Jul
    358
  • Aug
    316
  • Sep
    239

GitHub journey

→
  1. September 2008

    Joined GitHub

    Created the @sebastianbergmann account.

  2. January 2009

    Created first repository

    Published phploc, the oldest repository still on the account.

  3. January 2009

    First starred repository

    phploc is the earliest-created repository to have earned stars.

  4. April 2010

    Reached 10 repositories

    phpunit-mock-objects was the 10th public repository created.

  5. March 2023

    Latest repository

    csv-parser is the most recently created repository.

  6. June 2023

    Most productive year: 2023

    5,091 contributions recorded in 2023, more than any other year on record.

Developer evolution

Your GitHub career, year by year.

 →
2009

Started with PHP.

HTML PHP
Repos this year
9
Total repos
9
Stars, as of today
55k
phpunit
2010

Went deeper into PHP.

PHP
Repos this year
3
Total repos
12
Stars, as of today
68k
php-timer
2011

Went deeper into PHP.

PHP
Repos this year
2
Total repos
14
Stars, as of today
70k
php-invoker
2012

Went deeper into PHP.

PHP
Repos this year
2
Total repos
16
Stars, as of today
71k
money
2013

Went deeper into PHP.

PHP
Repos this year
6
Total repos
22
Stars, as of today
99k
diff
2014

Went deeper into PHP.

PHP
Repos this year
3
Total repos
25
Stars, as of today
113k
environment
2015

Went deeper into PHP.

PHP
Repos this year
2
Total repos
27
Stars, as of today
126k
recursion-context
2016

Went deeper into PHP.

PHP
Repos this year
2
Total repos
29
Stars, as of today
139k
code-unit-reverse-lookup
2017

Went deeper into PHP.

PHP
Repos this year
2
Total repos
31
Stars, as of today
145k
object-reflector
2018

Went deeper into PHP.

PHP
Repos this year
3
Total repos
34
Stars, as of today
146k
foal
2019

Went deeper into PHP.

PHP
Repos this year
1
Total repos
35
Stars, as of today
147k
type
2020

Went deeper into PHP.

PHP
Repos this year
4
Total repos
39
Stars, as of today
152k
complexity
2023

Went deeper into PHP.

PHP
Repos this year
1
Total repos
40
Stars, as of today
152k
Contributions
5,091
csv-parser

Built from sebastianbergmann’s public, non-fork repositories. Star totals reflect current counts, not historical snapshots.

Achievements

5 / 9 unlocked

Explorer
Created repositories in 8 or more languages
Builder
More than 50 public repositories
Open Source Enthusiast
100+ stars received across all repositories
Consistent
A 100-day-or-longer contribution streak
Documentation Hero
5 or more repositories with a detailed description
Popular
500 or more followers
Prolific Committer
1,000 or more commits in the past 12 months
Long Timer
5 or more years on GitHub
Star Collector
Starred 100 or more repositories

Open source activity

152,121
Stars received
4,699
Forks received
101
Issues opened
Past 12 months
88
Pull requests opened
Past 12 months
8
Reviews given
Past 12 months
11
Public gists

Language evolution

The primary languages of repositories created each year.

2009
  • HTML
  • PHP
2010
  • PHP
2011
  • PHP
2012
  • PHP
2013
  • PHP
2014
  • PHP
2015
  • PHP
2016
  • PHP
2017
  • PHP
2018
  • PHP
2019
  • PHP
2020
  • PHP
2023
  • PHP

Repository growth

Repositories created per year, and the running total.

9 repositories created in 2009 3 repositories created in 2010 2 repositories created in 2011 2 repositories created in 2012 6 repositories created in 2013 3 repositories created in 2014 2 repositories created in 2015 2 repositories created in 2016 2 repositories created in 2017 3 repositories created in 2018 1 repositories created in 2019 4 repositories created in 2020 1 repositories created in 2023 9 total repositories by end of 2009 12 total repositories by end of 2010 14 total repositories by end of 2011 16 total repositories by end of 2012 22 total repositories by end of 2013 25 total repositories by end of 2014 27 total repositories by end of 2015 29 total repositories by end of 2016 31 total repositories by end of 2017 34 total repositories by end of 2018 35 total repositories by end of 2019 39 total repositories by end of 2020 40 total repositories by end of 2023 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2023 40 0
Created that year Cumulative total

Language tree

Built automatically from repository languages and topics.

Programming Languages →
  • HTML
  • PHP
  • XSLT
  • JavaScript
  • Java
  • CSS