php - how to access a variable inside the function from another class -

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How can I use the variable inside a function in a square from another class

Below east .. I want to use $ asdf in another category.

For example 

  class abc {public function foo1 () {$ asdf = 'YEAHHHHH'; }} Class xyz {private qw; Public event foo2 () {$ this- & gt; Qw = new foo1 (); $ This- & gt; Qw- & gt; Foo1 () - & gt; Asdf; // asdf has not been found .. echo $ this- & gt; Firstly make sure the function returns the value as needed, that is:  
 
 
 return <$> $ asdf;   
 Then you can reference and assign a value to a variable:  
  $ value = $ this-> qw- & gt; Foo1 ();   
 Then your code will look something like this:  
  class abc {public function foo1 () {$ asdf = 'YehahHHH'; Return $ Asdf; }} Class xyz {private qw; Public event foo2 () {$ this- & gt; Qw = new foo1 (); $ Value = $ this- & gt; Qw- & gt; Foo1 (); Echo $ value; }}

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