Search notes:

PHP: gettype()

gettype(x) returns a string that corresponds to the the of x.

<html><head><title>gettype</title>
  <style type="text/css">
    td {margin-left: 0.5em;}
  </style>
</head>

<body>

<?php

   class CLS { }
   $obj = new CLS;

?>

  <table summary='gettype'>
    <tr><td>42                  </td><td><?php echo gettype( 42               ); ?></td></tr> <!-- integer    -->
    <tr><td>42.42               </td><td><?php echo gettype( 42.42            ); ?></td></tr> <!-- double     -->
    <tr><td>'hello world'       </td><td><?php echo gettype('hello world'     ); ?></td></tr> <!-- string     -->
    <tr><td>TRUE                </td><td><?php echo gettype( TRUE             ); ?></td></tr> <!-- boolean    -->
    <tr><td>array('one'       ) </td><td><?php echo gettype( array('one'    ) ); ?></td></tr> <!-- array      -->
    <tr><td>array('one'=&gt; 1) </td><td><?php echo gettype( array('one'=> 1) ); ?></td></tr> <!-- array      -->
    <tr><td>NULL                </td><td><?php echo gettype( NULL             ); ?></td></tr> <!-- NULL       -->
    <tr><td>$obj                </td><td><?php echo gettype( $obj             ); ?></td></tr> <!-- object     -->
    <tr><td>$undefined_var      </td><td><?php echo gettype( $undefined_var   ); ?></td></tr> <!-- NULL       -->
    <tr><td>gettype(0)          </td><td><?php echo gettype( gettype(0)       ); ?></td></tr> <!-- string     -->
  </table>

</body>
</html>

Github repository about-php, path: /gettype.html

PHP: gettype()

See also