Grammar explorer

PHP 8.5 Production

cast-operator

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

cast-operator 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."(int)""(integer)""(float)""(double)""(string)""(binary)""(array)""(object)""(bool)""(boolean)""(unset)"
Production LiteralBranch: choiceBypass: optionalLoop: repeat
EBNF source
cast-operator =
    "(int)" | "(integer)" | "(float)" | "(double)" | "(string)"
    | "(binary)" | "(array)" | "(object)" | "(bool)" | "(boolean)" | "(unset)" ;
Referenced by 2

Take it with you

The grammar, in plain text.

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

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