php-grammarAn open source EBNF grammar for PHP.

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PHP 8.5 Production

hexadecimal-integer-literal

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hexadecimal-integer-literal 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."0x""0X"Explore production: hexadecimal-digithexadecimal-digitExplore production: numeric-separatornumeric-separatorExplore production: hexadecimal-digithexadecimal-digit
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
hexadecimal-integer-literal =
    ( "0x" | "0X" ) , hexadecimal-digit , { [ numeric-separator ] , hexadecimal-digit } ;

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hexadecimal-digit numeric-separator
Referenced by 2
integer-literalnumeric-string

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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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