PHP 数组函数 array_diff_assoc()

<?php
   $input1 = array( "a"=>"orange", "b"=>"mango", "c"=>"banana");
   $input2 = array( "a"=>"orange", "b"=>"apple", "c"=>"banana");
   print_r(array_diff_assoc($input1, $input2));

   $input1 = array( "a"=>"orange", "b"=>"mango", "c"=>"banana");
   $input2 = array( "a"=>"banana", "b"=>"apple", "c"=>"orange");
   print_r(array_diff_assoc($input1, $input2));
?>