php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

expression

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expression 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: throw-expressionthrow-expression
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
expression =
    throw-expression ;

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throw-expression
Referenced by 43
variable-variableencapsulated-variableconstant-expressionconditional-expressionvoid-cast-statementfully-dereferenceable-expressioncallable-expressionprimary-expressionmember-nameclass-constantclass-name-referenceclone-argument-listargumentargument-no-expressionexpression-listarray-pairmatch-expressionmatch-armmatch-arm-condition-listexpression-statementstatic-variablereturn-statementbreak-statementcontinue-statementalt-elseif-listdo-statementfor-expressionfor-condition-expression-listswitch-statementswitch-caseproperty-hook-bodycallable-variablenew-variableproperty-nameisset-variablematched-if-statementunmatched-if-statementalternative-if-statementmatched-while-statementunmatched-while-statementmatched-foreach-statementunmatched-foreach-statementconditional-prefix-context

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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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