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PHP License: Earlier versions & Overview

The PHP License is the open-source license under which the PHP scripting language is released. The PHP License is designed to encourage widespread adoption of the source code. Redistribution is permitted in source or binary form with or without modifications, with some caveats.

Language: English [EN]
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PHP License topic overview

The analysis highlights Earlier versions and Overview as prominent areas in the source structure around PHP License.

Related topics
15
Source areas
2
Connected nodes
17
Extracted relationships
36
Concept neighborhoods
16
Bridge connections
17

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Earlier versions · 9 topics
Overview · 6 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Publisher
The PHP Group
Copyleft
No
Debian FSG compatible
No
FSF approved
Yes
GPL compatible
Yes
Latest version
4.0

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Earlier versions

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How PHP License connects Entity context

The extracted context around PHP License shows recurring relationship patterns in the source. For example, PHP License → GNU General Public License, GPL, GPL's, PHP, PHP's, The Zend Engine, This, Version, Zend, Zend Engine, Zend Engine License Another extracted example is PHP License → Debian, Expressed, Free Software Foundation, GPL-incompatible, Open Source Initiative, PHP, The, Version. Use these groups to spot repeated connection types before inspecting the individual relationships.

PHP License

Top relations

related to Earlier versions · 11
PHP License → GNU General Public License, GPL, GPL's, PHP, PHP's, The Zend Engine, This, Version, Zend, Zend Engine, Zend Engine License
related to Criticism of early versions · 8
PHP License → Debian, Expressed, Free Software Foundation, GPL-incompatible, Open Source Initiative, PHP, The, Version
see also · 3
PHP License → Apache LicenseSoftware, Free, PHP
is a · 2
PHP License → open source license according to the Open Source Initiative, open-source license under which the PHP scripting language is released
related to External links · 2
PHP License → Grant Documents, Official PHP License InformationZend
Copyleft · 1
PHP License → No
Debian FSG compatible · 1
PHP License → No
FSF approved · 1
PHP License → Yes
GPL compatible · 1
PHP License → Yes
Latest version · 1
PHP License → 4.0

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

php license source gpl version compatible debian zend licences 2026 restrictions software open-source according clause use copyleft binary used contains

PHP License relationships Subject–Predicate–Object triples

TTTA extracted 36 structured relationships around PHP License. Examples in this analysis include PHP License → Copyleft → No and PHP License → FSF approved → Yes. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
PHP LicenseCopyleftNo1.00infobox
PHP LicenseDebian FSG compatibleNo1.00infobox
PHP LicenseFSF approvedYes1.00infobox
PHP LicenseGPL compatibleYes1.00infobox
PHP LicenseLatest version4.01.00infobox
PHP LicenseOSI approvedYes1.00infobox
PHP LicensePublishedMay 20261.00infobox
PHP LicensePublisherThe PHP Group1.00infobox
PHP LicenseSPDX identifierBSD-3-Clause1.00infobox
PHP LicenseWebsitewww.php.net/license/1.00infobox
PHP Licenseis aopen-source license under which the PHP scripting language is released0.90text
PHP Licenseis aopen source license according to the Open Source Initiative0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around PHP License bring nearby vocabulary together. In this analysis, examples include Php, Debian and Restrictions. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • PHP License
    • Php
    • Debian
    • Restrictions
    • Software
    • Version
    • Zend
    • Source
    • Open-source
    • According
    • Clause
    • Contains
    • Copyleft
  • php license
    • Php
    • Debian
    • Software
    • Version
    • Zend
    • Restrictions
    • Source
    • According
    • Clause
    • Contains
    • Free
    • Open-source
  • open-source license
    • Php
    • Language
    • Released
    • Scripting
    • Free
    • Specific
    • Used
    • Debian
    • Software
    • Version
    • Zend
    • Source
  • php
    • Debian
    • Restrictions
    • Software
    • Version
    • Zend
    • Source
    • According
    • Clause
    • Contains
    • Copyleft
    • Free
    • Specific
  • 3-clause bsd license
    • Php
    • Debian
    • Software
    • Version
    • Zend
    • Source
    • According
    • Clause
    • Contains
    • Free
    • Open-source
    • Specific
  • dual license
    • Php
    • Debian
    • Software
    • Version
    • Zend
    • Source
    • According
    • Clause
    • Contains
    • Free
    • Open-source
    • Specific
  • gnu general public license
    • Php
    • Debian
    • Software
    • Version
    • Zend
    • Source
    • According
    • Clause
    • Contains
    • Free
    • Open-source
    • Specific
  • zend engine
    • Beginning
    • Clauses
    • Reduced
    • Three
    • License
    • Clause
    • Contains
    • Free
    • Licences
    • Open-source
    • Php
    • Specific

Connections between topic areas Semantic bridges

For PHP License, one of the stronger structural bridges in this analysis connects PHP License with Earlier versions. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
PHP License — Earlier versions · splits 8 ⟂ 10
PHP License — Overview · splits 11 ⟂ 7

Map overview Semantic statistics

PHP License

Nodes18
Edges17
Triples36
Avg. degree1.89
Density0.111111
Components1

Source & methodology

TTTA analyzes the structure around PHP License to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Earlier versions & Overview, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — PHP License · EN edition · Analysis: TopicsToTalkAbout

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