php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

string-literal

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string-literal 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: single-quoted-stringsingle-quoted-stringExplore production: double-quoted-stringdouble-quoted-stringExplore production: heredoc-stringheredoc-stringExplore production: nowdoc-stringnowdoc-string
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
string-literal =
      single-quoted-string
    | double-quoted-string
    | heredoc-string
    | nowdoc-string ;

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single-quoted-string double-quoted-string heredoc-string nowdoc-string
Referenced by 1
literal

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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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