<?php
function w3rfunction($value,$key)
{
echo "$key : $value"."\n";
}
$a = '{"Title": "The Cuckoos Calling",
"Author": "Robert Galbraith",
"Detail":
{ 
"Publisher": "Little Brown"
 }
  }';
$j1 = json_decode($a,true);
array_walk_recursive($j1,"w3rfunction");
?>