php-grammarAn open source EBNF grammar for PHP.

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PHP 8.5 Production

shift-expression

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shift-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: additive-expressionadditive-expression"<<"">>"Explore production: additive-expressionadditive-expression
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
shift-expression =
    additive-expression , { ( "<<" | ">>" ) , additive-expression } ;

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additive-expression
Referenced by 2
concatenation-expressionshift-prefix-context

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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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