I have a main php class such as this:
class MyClass { public $a; public $b; function __construct() { $this->a = new \SomeClass(); $this->b = 'some string'; } } is there a way the class which is stored in the $a (SomeClass) property can access the $b value which is actually a property which is stored in the class that initiated $a (MyClass) ?
You could do something like this:
class MyClass { public $a; public $b; function __construct() { $this->a = new \SomeClass($this); $this->b = 'some string'; } } class SomeClass { public $mc; function __construct(MyClass $mc) { $this->mc = $mc; } } $myClass = new MyClass(); echo $myClass->a->mc->b; The output would be: some string
You can do something like this:
class MyClass { public $a; public $b; function __construct() { $this->b = 'some string'; $this->a = new \SomeClass($this->b); } } class SomeClass{ function __construct($b) { echo $b; // it will become a $this->b as given while creating new class in MyClass } } 
MyClass::$b ever changes it will not be reflected in the SomeClass object if done this way.
$thisin the constructor or setting it after the object is created. You then would need to store MyClass as a property if you intend to use any where else in SomeClass after it is instantiated.