php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

property-name

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

property-name 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: identifieridentifier"{"Explore production: expressionexpression"}"Explore production: variable-likevariable-like
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
property-name =
    identifier | "{" , expression , "}" | variable-like ;

Explore next

identifier expression variable-like
Referenced by 3
variable-expressioncallable-variablenew-variable

Take it with you

The grammar, in plain text.

For reading, building tools, and exploring PHP.
Free to use under the MIT license.

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.

Explore the project and contribute