ReflectionClass::isInstance

(PHP 5)

ReflectionClass::isInstance — Checks class for instance

Descrierea

public bool ReflectionClass::isInstance ( object $object )

Checks if an object is an instance of a class.

Parametri

object: The object being compared to.

Valorile întoarse

Întoarce valoarea TRUE în cazul succesului sau FALSE în cazul eșecului.

Exemple

Example #1 ReflectionClass::isInstance() related examples


<?php
// Example usage
$class = new ReflectionClass('Foo');

if ($class->isInstance($arg)) {
    echo "Yes";
}

// Equivalent to
if ($arg instanceof Foo) {
    echo "Yes";
}

// Equivalent to
if (is_a($arg, 'Foo')) {
    echo "Yes";
}
?>

Exemplul de mai sus va afișa ceva similar cu:

Yes
Yes
Yes

Vedeți de asemenea

ReflectionClass::isInterface() - Checks if the class is an interface
Type operators (instanceof)
Object Interfaces
is_a() - Checks if the object is of this class or has this class as one of its parents