How PHP variable variables work? -

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I know how PHP variable variables work, but there is a problem understanding why this script is "I am r . " Instead of "I'm B" 

  & lt ;? Php square fu {var $ bar = 'I'm the bar.'; Var $ arr = Array ('I am', 'I am b', 'I am'); Var $ r = 'I am' '; } $ Fooo = new Fuo (); $ Arr = 'arr'; $ Fooo- & gt; Resonate $ arr [1] "\ N"; // top line output // i am r? & Gt;    
 
 
 You are defining  $ arr = 'arr';  and then getting the second letter from string 'arr', not array in class Foo, this is the reason why you 'r' ( [1]  is returning from your word to second letter is).  
  Solution?  You should replace:  
  $ fooo-> $ Arr [1] echo "\ N"; With   
:  
  echo $ fooo-> Arr [1] "\ N";   
 You should get your desired output:  
  'I am'

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