ReflectionClass::isInstantiable

(PHP 5, PHP 7)

ReflectionClass::isInstantiable — Checks if the class is instantiable

Description

public ReflectionClass::isInstantiable ( ) : bool

Checks if the class is instantiable.

Parameters

This function has no parameters.

Return Values

Returns true on success or false on failure.

Examples

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() { }
}

trait T {
    function f1() {}
}

class privateConstructor {
    private function __construct() { }
}

$classes = array(
    "C",
    "iface",
    "ifaceImpl",
    "abstractClass",
    "D",
    "T",
    "privateConstructor",
);

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)
Is T instantiable?  bool(false)
Is privateConstructor instantiable?  bool(false)

See Also

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https://www.php.net/manual/en/reflectionclass.isinstantiable.php