Source of multiArray.php
<!doctype html public "-//W3C//DTD HTML 4.0 //EN">
<html>
<head>
<title>Distance Calculator</title>
</head>
<body>
<h1>Distance Calculator</h1>
<?
//create arrays
$indy = array (
"Indianapolis" => 0,
"New York" => 648,
"Tokyo" => 6476,
"London" => 4000
);
$ny = array (
"Indianapolis" =>648,
"New York" => 0,
"Tokyo" => 6760,
"London" => 3470
);
$tokyo = array (
"Indianapolis" => 6476,
"New York" => 6760,
"Tokyo" => 0,
"London" => 5956
);
$london = array (
"Indianapolis" => 4000,
"New York" => 3470,
"Tokyo" => 5956,
"London" => 0
);
//set up master array
$distance = array (
"Indianapolis" => $indy,
"New York" => $ny,
"Tokyo" => $tokyo,
"London" => $london
);
$result = $distance[$cityA][$cityB];
print "<h3>The distance between $cityA and $cityB is $result miles.</h3>";
?>
</body>
</html>