Exmple of associattive arrays
$array = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5)
<?php
//array_change_key_case.php
$array = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5);
echo"array_values print out <br/>";
print_r(array_values($array));
echo"<br>array_keys print out <br/>";
print_r(array_keys($array));
echo "<br/>Serialized Array Keys<br/>";
foreach($array as $m => $n) { echo "$m <br/>" ;}
echo "<br/>Serialized Array key and Values <br/>";
foreach($array as $m => $n) { echo "$m   $n<br/>" ;}
?>
<html>
<title> array_change_key_case($var)</title>
<body bgcolor="#E7F2F5" text="#000080">
<?php
echo "<br/> Case of Array keys<br/>";
$change_case = array_change_key_case($array, CASE_UPPER);
print_r($change_case);
echo "<br />";
echo "<table border='1'width='100'> <tr><td width='51'>Key</td><td width='51'> Values: </td></tr></table>";
foreach( $change_case as $key => $value){
echo "<table border='1' width='100'><tr><td width='50'>$key</td><td width='50'>$value </td></tr></table>";
}
?>
</body>
</html>
