Old constructors also count as contructor:
<?php
class SomeClass {
function SomeClass($some_arg) {
}
}
$refl = new ReflectionClass('SomeClass');
var_dump($refl->isInstantiable()); // bool(true)
echo $refl->getConstructor();
/* OUTPUT:
Method [ <user, ctor> public method SomeClass ] {
@@ /var/www/vhosts/api.example.com/httpdocs/testRefl.php 5 - 6
- Parameters [1] {
Parameter #0 [ <required> $some_arg ]
}
}
*/
?>
Some more behavior:
<?php
class SomeClass {
function funcA($arg1, $arg2) {
}
}
$refl = new ReflectionClass('SomeClass');
var_dump($refl->isInstantiable()); // bool(true)
var_dump($refl->getConstructor()); // NULL
/* --------------- */
class AnotherClass {
private function __construct() {
}
function funcB($arg1, $arg2) {
}
}
$refl = new ReflectionClass('AnotherClass');
var_dump($refl->isInstantiable()); // bool(false)
echo $refl->getConstructor();
/*
Method [ <user, ctor> private method __construct ] {
@@ /testRefl.php 22 - 23
}
*/
?>
Tested on PHP 5.2.4
ReflectionClass::getDefaultProperties
ReflectionClass::getConstants
[edit] Last updated: Fri, 24 May 2013
ReflectionClass::getConstants
[edit] Last updated: Fri, 24 May 2013
ReflectionClass::getConstructor
(PHP 5)
ReflectionClass::getConstructor — Récupère le constructeur d'une classe
Description
Récupère le constructeur d'une classe.
Liste de paramètres
Cette fonction ne contient aucun paramètre.
Valeurs de retour
Un objet ReflectionMethod reflétant le constructeur
de la classe, ou NULL si la classe n'a pas de constructeur.
Exemples
Exemple #1 Exemple avec ReflectionClass::getConstructor()
<?php
$class = new ReflectionClass('ReflectionClass');
$constructor = $class->getConstructor();
var_dump($constructor);
?>
L'exemple ci-dessus va afficher :
object(ReflectionMethod)#2 (2) {
["name"]=>
string(11) "__construct"
["class"]=>
string(15) "ReflectionClass"
}
add a note
User Contributed Notes
ReflectionClass::getConstructor - [2 notes]
jochem at drecomm dot nl ¶
2 years ago
Rob McVey ¶
2 years ago
Just posting some example code for anyone wanting to mess around with this stuff:
<?php
class Say
{
private $what_to_say;
public function __construct($no_default, $word = "Hello World", $options = array('a', 'b'))
{
$this->what_to_say = $word;
}
public function speak()
{
echo $this->what_to_say;
}
}
$class = new ReflectionClass('Say');
$constructor = $class->getConstructor();
echo $constructor;
/* OUTPUTS:
Method [ <user, ctor> public method __construct ] {
@@ /reflect.php 6 - 9
- Parameters [3] {
Parameter #0 [ <required> $no_default ]
Parameter #1 [ <optional> $word = 'Hello World' ]
Parameter #2 [ <optional> $options = Array ]
}
}
*/
$parameters = $constructor->getParameters();
var_export($parameters);
/* OUTPUT:
array (
0 =>
ReflectionParameter::__set_state(array(
'name' => 'no_default',
)),
1 =>
ReflectionParameter::__set_state(array(
'name' => 'word',
)),
2 =>
ReflectionParameter::__set_state(array(
'name' => 'options',
)),
)
*/
$nl = "\n";
echo "$nl\tParameters$nl";
foreach($parameters as $param)
{
echo "****** $" . $param->name . " ******$nl";
echo "Nullable:\t\t" . $param->allowsNull() . $nl
."Default Value:\t\t";
echo ($param->isDefaultValueAvailable()) ? $param->getDefaultValue() : "None";
echo $nl ."Is Array:\t\t";
echo ($param->isArray()) ? "Yes" : "No";
echo $nl . "Optional:\t\t";
echo ($param->isOptional()) ? "Yes" : "No";
echo $nl;
}
/* OUTPUT:
Parameters
****** $no_default ******
Nullable: 1
Default Value: None
Is Array: No
Optional: No
****** $word ******
Nullable: 1
Default Value: Hello World
Is Array: No
Optional: Yes
****** $options ******
Nullable: 1
Default Value: Array
Is Array: No
Optional: Yes
*/
?>
To clarify the possibly confusing behavior of ReflectionParemeter::isArray(), it will return true if the parameter has type hinting:
<?php
...
public function __construct($no_default, $word = "Hello World", array $options = array('a', 'b'))
...
?>
Calling isArray() will now return true for the $options parameter