is_bool

is_bool

Finds out whether a variable is a boolean

bool **is_bool** mixed $value

Finds whether the given variable is a boolean.

valueThe variable being evaluated.

Returns true if is a , false otherwise. value``bool

Voorbeeld: examples

<?php
$a = false;
$b = 0;

// Since $a is a boolean, it will return true
if (is_bool($a) === true) {
    echo "Yes, this is a boolean\n";
}

// Since $b is not a boolean, it will return false
if (is_bool($b) === false) {
    echo "No, this is not a boolean\n";
}
?>

is_float``is_int``is_string``is_object``is_array