(PHP 5, PHP 7, PHP 8)
ReflectionClass::isInstance — Checks class for instance
$object): boolChecks if an object is an instance of a class.
objectThe object being compared to.
Returns true on success or false on failure.
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