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Code:
<?php
   $state
["Delaware"] = "December 7, 1787";
   
$state["Pennsylvania"] = "December 12, 1787";
   
$state["New Jersey"] = "December 18, 1787";
   
$keys = array_keys($state);
   
print_r($keys);
   
// Array ( [0] => Delaware [1] => Pennsylvania [2] => New Jersey )
?>




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M. S. Rakha, Ph.D.
Queen's University
Canada


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