php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

escape-sequence

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escape-sequence 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: source-charactersource-character
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
escape-sequence =
    "\\" , source-character ;

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source-character
Referenced by 2
single-quoted-string-contentstring-text

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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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