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<html>
<head>
<title>Testing the type of a variable</title>
</head>
<body>
<?php
$testing = 5;
print gettype( $testing ); // integer
print "<br>";
$testing = "five";
print gettype( $testing ); // string
print("<br>");
$testing = 5.0;
print gettype( $testing ); // double
print("<br>");
$testing = true;
print gettype( $testing ); // boolean
print "<br>";
?>
</body>
</html>
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