Work with Data Types

<?php show_source(end(explode('/',$_SERVER['PHP_SELF']))); echo "<hr>"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <title>Work with Data Types</title>
</head>
<body>
<?php
    $v = 125;
    echo gettype($v) . '<br />';

    $v = 'A string';
    echo gettype($v) . '<br />';

    $success = settype($v, 'integer');
    echo "The success of the settype operation was: $success.<br />";
?>
</body>
</html>

Work with Data Types integer
string
The success of the settype operation was: 1.