php-grammarAn open source EBNF grammar for PHP.

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PHP 8.5 Production

unmatched-if-statement

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unmatched-if-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."if""("Explore production: expressionexpression")"Explore production: statementstatementExplore production: matched-statementmatched-statement"elseif""("Explore production: expressionexpression")"Explore production: matched-statementmatched-statement"elseif""("Explore production: expressionexpression")"Explore production: unmatched-statementunmatched-statement"else"Explore production: unmatched-statementunmatched-statementExplore production: matched-statementmatched-statement"elseif""("Explore production: expressionexpression")"Explore production: matched-statementmatched-statement"elseif""("Explore production: expressionexpression")"Explore production: matched-statementmatched-statement
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
unmatched-if-statement =
    "if" , "(" , expression , ")" ,
    ( statement
    | matched-statement , { "elseif" , "(" , expression , ")" , matched-statement } ,
      ( "elseif" , "(" , expression , ")" , unmatched-statement
      | "else" , unmatched-statement )
    | matched-statement , "elseif" , "(" , expression , ")" , matched-statement ,
      { "elseif" , "(" , expression , ")" , matched-statement } ) ;

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expression statement matched-statement unmatched-statement
Referenced by 2
if-statementunmatched-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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