php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

conditional-prefix-context

Read left to right. Select any rule to explore it.

conditional-prefix-context 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: coalesce-prefix-contextcoalesce-prefix-contextExplore production: conditional-expressionconditional-expression"?"Explore production: expressionexpression":"Explore production: coalesce-prefix-contextcoalesce-prefix-context
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
conditional-prefix-context =
    coalesce-prefix-context
    | conditional-expression , "?" , [ expression ] , ":" , [ coalesce-prefix-context ] ;

Explore next

coalesce-prefix-context conditional-expression expression
Referenced by 2
assignment-expressionassignment-prefix-context

Take it with you

The grammar, in plain text.

For reading, building tools, and exploring PHP.
Free to use under the MIT license.

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.

Explore the project and contribute