php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

unset-statement

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unset-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."unset""("Explore production: unset-variable-listunset-variable-list","")"";"
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
unset-statement =
    "unset" , "(" , unset-variable-list , [ "," ] , ")" , ";" ;

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unset-variable-list
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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