php-grammarAn open source EBNF grammar for PHP.

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PHP 8.5 Production

postfix-expression

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postfix-expression 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: variable-expressionvariable-expression"++""--"Explore production: primary-expressionprimary-expression"++""--"Explore production: variable-expressionvariable-expressionExplore production: closure-expressionclosure-expressionExplore production: match-expressionmatch-expression
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
postfix-expression =
    variable-expression , [ "++" | "--" ] | primary-expression
    | ( "++" | "--" ) , variable-expression | closure-expression | match-expression ;

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variable-expression primary-expression closure-expression match-expression
Referenced by 1
clone-expression

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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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