PHP is_double() Function

The PHP is_double() function in PHP is used to  find whether the type of the specified variable is a float or not. It returns a Boolean value true if the parameter var is float else it returns false.

This function in an alias of is_float() function.

Syntax

is_ double( mixed $var ) 

Parameter

var(required)- This parameter represents the value to check.

Return

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

Example 1

Output

The var is Float

Example 2

Output

1232 is not a float value. 

Example 3

Output

1232 is not a float value.