<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title> New Document </title>
<meta name="author" content=""/>
<meta name="keywords" content=""/>
<meta name="description" content=""/>
<link rel="stylesheet" type="text/css" href="" />
</head>

<body>
<?php
$string1 = "i am a phper";
$string2 = "这网站是【宜配屋www.yipeiwu.com】";
print_r(str_split($string1));
echo "<br />";
print_r(str_split($string2,4));
?>
</body>
</html>