php-grammarAn open source EBNF grammar for PHP.

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PHP 8.5 Production

logical-xor-prefix-context

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logical-xor-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: logical-and-prefix-contextlogical-and-prefix-contextExplore production: logical-xor-expressionlogical-xor-expression"xor"Explore production: logical-and-prefix-contextlogical-and-prefix-context
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
logical-xor-prefix-context =
    logical-and-prefix-context | logical-xor-expression , "xor" , [ logical-and-prefix-context ] ;

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logical-and-prefix-context logical-xor-expression
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logical-or-prefix-context

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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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