Number

  • Number()

Validates if the input is a number.

v::number()->assert(42);
// Validation passes successfully

v::number()->assert(acos(8));
// → `NaN` must be a number

"In computing, NaN, standing for not a number, is a numeric data type value representing an undefined or unrepresentable value, especially in floating-point calculations." Wikipedia

Templates

Number::TEMPLATE_STANDARD

Mode Template
default {{subject}} must be a number
inverted {{subject}} must not be a number

Template placeholders

Placeholder Description
subject The validated input or the custom validator name (if specified).

Categorization

  • Numbers

Changelog

Version Description
3.0.0 Templates changed
2.0.0 Created

See Also