class Person {
public static function ShowQualification() {
}
}
class School {
public static $Headmaster = new Person(); // NetBeans complains about this line
}
Why is this not possible?
I want to be able to use this like
School::Headmaster::ShowQualification();
..without instantiating any class. How can I do it?
Update: Okay I understood the WHY part. Can someone explain the HOW part? Thanks :)
From the docs,
"Like any other PHP static variable, static properties may only be initialized using a literal or constant; expressions are not allowed."
new Person() is not a literal or a constant, so this won't work.
You can use a work-around:
class School {
public static $Headmaster;
}
School::$Headmaster = new Person();
new Person() is an operation, not a value.
Like any other PHP static variable, static properties may only be initialized using a literal or constant; expressions are not allowed. So while you may initialize a static property to an integer or array (for instance), you may not initialize it to another variable, to a function return value, or to an object.
You can initialise the School class to an object:
class School {
public static $Headmaster; // NetBeans complains about this line
public function __construct() {
$this->Headmaster = new Person();
}
}
$school = new School();
$school->Headmaster->ShowQualification();
