php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

type

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type 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: union-typeunion-typeExplore production: intersection-typeintersection-typeExplore production: nullable-typenullable-typeExplore production: simple-typesimple-type
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
type =
      union-type
    | intersection-type
    | nullable-type
    | simple-type ;

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union-type intersection-type nullable-type simple-type
Referenced by 3
return-typeclass-constant-declarationenum-backing-type

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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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