ReflectionClass::newInstance
I misunderstood this function to be a sort of setter of Reflection::newInstance() arguments in an array form rather than a creator of new instances itself.
This function is equivilant to call_user_func_array() while Reflection::newInstance() is equivilant to call_user_func()
ReflectionClass::newInstanceArgs
(PHP 5 >= 5.1.3)
ReflectionClass::newInstanceArgs — New instance args
Description
public object ReflectionClass::newInstanceArgs
([ array $args
] )
New instance args.
Warning
This function is currently not documented; only its argument list is available.
Parameters
- args
-
Return Values
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User Contributed NotesReflectionClass::newInstanceArgs
kevinpeno at gmail dot com
16-Sep-2009 03:11
16-Sep-2009 03:11
richardcook at gmail dot com
12-Apr-2009 09:39
12-Apr-2009 09:39
the newInstanceArgs function cannot call a class' constructor if it has references in its arguments, so be careful what you pass into it:
<?php
class Foo {
function __construct (&$arr) {
$this->arr = &$arr;
}
function createInstance () {
$reflectionClass = new ReflectionClass("Bar");
return $reflectionClass->newInstanceArgs(array($this, $this->arr));
}
function mod($key, $val) {
$this->arr[$key] = $val;
}
}
class Bar {
function __construct (&$foo, &$arr) {
$this->foo = &$foo;
$this->arr = &$arr;
}
function mod($key, $val) {
$this->arr[$key] = $val;
}
}
$arr = array();
$foo = new Foo($arr);
$arr["x"] = 1;
$foo->mod("y", 2);
$bar = $foo->createInstance();
$bar->mod("z", 3);
echo "<pre>";
print_r($arr);
print_r($foo);
print_r($bar);
echo "</pre>";
/*
Output:
Warning: Invocation of Bar's constructor failed in [code path] on line 31
Fatal error: Call to a member function mod() on a non-object in [code path] on line 58
*/
?>
gromit at mailinator dot com
29-Jul-2008 08:37
29-Jul-2008 08:37
Be aware that calling the method newInstanceArgs with an empty array will still call the constructor with no arguments. If the class has no constructor then it will generate an exception.
You need to check if a constructor exists before calling this method or use try and catch to act on the exception.