php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

comment

Read left to right. Select any rule to explore it.

comment railroad diagramRead left to right. Branches are alternatives, bypasses are optional, and loops repeat. Select a production to explore it. The EBNF and linked references follow below.Explore production: line-commentline-commentExplore production: block-commentblock-commentExplore production: doc-commentdoc-comment
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
comment =
      line-comment
    | block-comment
    | doc-comment ;

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line-comment block-comment doc-comment

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php.ebnfPHP 8.5 · Canonical EBNF grammar php.mdPHP 8.5 · Grammar & source contract

A shared understanding of PHP.

php-grammar is an open source project documenting PHP syntax in a consistent, tool-independent format. The EBNF describes syntax; the accompanying specification defines lexical rules and contextual constraints.

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