is_a
PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8
is_a - Checks if the object is of this class or has this class as one of its parents
Manual
is_a(
mixed$object_or_class,
string$class,
[bool$allow_string = false] ): bool
Checks if the given object_or_class is of this class or has this class as one of its parents.
Parameters
- object_or_class
-
A class name or an object instance.
- class
-
The class name
- allow_string
-
If this parameter set to false, string class name as object_or_class is not allowed. This also prevents from calling autoloader if the class doesn't exist.
Return Values
Returns true if the object is of this class or has this class as one of its parents, false otherwise.