Try Flow Online
Definition
/**
* Create a literal value for use in queries.
*
* Automatically detects the type and creates the appropriate literal:
* - literal('hello') creates a string literal
* - literal(42) creates an integer literal
* - literal(3.14) creates a float literal
* - literal(true) creates a boolean literal
* - literal(null) creates a NULL literal
*/
literal(string|int|float|bool|null $value) : Literal
