php-grammarAn open source EBNF grammar for PHP.

Grammar explorer

PHP 8.5 Production

decimal-digit-nonzero

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

decimal-digit-nonzero 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."1""2""3""4""5""6""7""8""9"
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
decimal-digit-nonzero =
      "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" ;
Referenced by 1
decimal-integer-literal

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