Core PHP

Introduction First Program PHP Comments PHP Variables PHP $ and $$ Variables PHP Echo and Print PHP Data Types PHP Strings PHP Constants PHP Operators PHP If Else PHP Switch PHP While Loop PHP For Loop PHP For each Loop PHP Do while PHP Array PHP Associative Array PHP Multidimensional Array PHP Array Functions PHP Strings PHP Forms PHP Multiple Inheritance PHP Date & Time PHP Include & Require PHP isset PHP Implode PHP Explode PHP MySQL

CMS Tutorial

Word Press Tutorial

PHP is_bool() Function
2019-09-13 06:45:28

PHP is_bool() Function

The is_bool() Function in PHP is used to  find whether a variable is a Boolean or not. It returns a Boolean value true if the parameter var is a Boolean else it returns false.

Syntax

is_bool ( mixed $var )

Parameter

var(required)- This parameter represents the variable being evaluated.

Return

This function returns a Boolean value TRUE if the parameter ‘var’ is a Boolean, else it returns FALSE.

Example 1

Output

The given variable is a Boolean value.

Example 2

Output

The given variable is a Boolean value.

Example 3

Output

The given variable is not a Boolean value.

Example 4

Output

The given variable is not a Boolean value.