(PHP 5)
ReflectionClass::isInstantiable — Checks if instantiable
Checks if the class is instanciable.
This function is currently not documented; only its argument list is available.
This function has no parameters.
Returns TRUE on success or FALSE on failure.
Example #1 ReflectionClass::isInstantiable() example
<?php
class C { }
interface iface {
    function f1();
}
class ifaceImpl implements iface {
    function f1() {}
}
abstract class abstractClass {
    function f1() { }
    abstract function f2();
}
class D extends abstractClass {
    function f2() { }
}
$classes = array("C", "iface", "ifaceImpl", "abstractClass", "D");
foreach($classes  as $class ) {
    $reflectionClass = new ReflectionClass($class);
    echo "Is $class instantiable?  ";
    var_dump($reflectionClass->IsInstantiable()); 
}
?>
The above example will output:
Is C instantiable? bool(true) Is iface instantiable? bool(false) Is ifaceImpl instantiable? bool(true) Is abstractClass instantiable? bool(false) Is D instantiable? bool(true)