Php/docs/function.is-bool
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is_bool
(PHP 4, PHP 5, PHP 7)
is_bool — Finds out whether a variable is a boolean
Parameters
var- The variable being evaluated.
Return Values
Returns TRUE if var is a bool,
FALSE otherwise.
Examples
Example #1 is_bool() examples
<?php$a = false;$b = 0;// Since $a is a boolean, it will return trueif (is_bool($a) === true) { echo "Yes, this is a boolean";}// Since $b is not a boolean, it will return falseif (is_bool($b) === false) { echo "No, this is not a boolean";}?>
See Also
- is_float() - Finds whether the type of a variable is float
- is_int() - Find whether the type of a variable is integer
- is_string() - Find whether the type of a variable is string
- is_object() - Finds whether a variable is an object
- is_array() - Finds whether a variable is an array
