Float Coercion

Cast passed value into a PHP float type.

Input Value	Output Result	Description
`float(T)`	`float(T)`	Returns float value "as is"
`int(T)`	`float(T)`	Converts int to a float value ^[1]
`string(T)`	`float(T)`	Converts string to a float value ^[2]
`bool(false)`	`float(0.0)`
`bool(true)`	`float(1.0)`
`null`	`float(0.0)`
Other	`never`	Throws `InvalidValueException` exception

The int-to-float casts uses built-in PHP rules:
- The mantissa 0 will be added
The string value must satisfy the following rules:
- Must be non-empty
- Must contain numeric value

05 November 2025