ReflectionClass::isInstance

(PHP 5)

ReflectionClass::isInstance — Checks class for instance

Description

public bool ReflectionClass::isInstance ( object $object )

Checks if an object is an instance of a class.

Parameters

object

The object being compared to.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

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";
}
?>

The above example will output something similar to:

Yes
Yes
Yes

See Also

• ReflectionClass::isInterface() - Checks if 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