php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

magic-constant

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magic-constant 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."__LINE__""__FILE__""__DIR__""__CLASS__""__TRAIT__""__METHOD__""__FUNCTION__""__PROPERTY__""__NAMESPACE__"
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
magic-constant =
      "__LINE__"
    | "__FILE__"
    | "__DIR__"
    | "__CLASS__"
    | "__TRAIT__"
    | "__METHOD__"
    | "__FUNCTION__"
    | "__PROPERTY__"
    | "__NAMESPACE__" ;
Referenced by 3
primary-expressionreserved-non-modifiersarray-object-dereferenceable

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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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