php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

echo-statement

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echo-statement 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."echo"Explore production: expression-listexpression-listExplore production: statement-terminatorstatement-terminator
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
echo-statement =
    "echo" , expression-list , statement-terminator ;

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expression-list statement-terminator
Referenced by 1
simple-statement

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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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