php-grammarAn open source EBNF grammar for PHP.

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PHP 8.5 Production

double-quoted-string

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double-quoted-string 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."b""B""""Explore production: encapsulated-string-partencapsulated-string-partExplore production: encapsulated-string-partencapsulated-string-part"""
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
double-quoted-string =
    [ "b" | "B" ] , "\"" , [ encapsulated-string-part , { encapsulated-string-part } ] , "\"" ;

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encapsulated-string-part
Referenced by 2
string-literaldereferenceable-scalar

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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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