variablefunction.php

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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>

<body>
<?php
	function foo()
	{
		echo "In foo()<br/>";
	}
	function bar($arg="")
	{
		echo "in bar(); argument was '$arg'.<br/>";
	}
	function echoit($string)
	{
		echo $string;
	}
	
	$fun='foo';
	$func();
	
	$fun='bar';
	$func('test');
?>
</body>
</html>