在php中设置cookie值，很简单的例子，适合入门参考。
代码：
<?php
/**
* 接收参数、设置cookie
* by www.jb200.com
*/
$user = $_POST['user'];
$color = $_POST['color'];
$self = $_SERVER['PHP_SELF'];
if( ( $user != null ) and ( $color != null ) )
{
setcookie( "firstname", $user , time() + 36000 );
setcookie( "fontcolor", $color, time() + 36000 );
header( "Location:getcookie.php" );
exit();
}
?>
<html>
<head>
<title>php 设置cookie</title>
</head>
<body>
<form action ="<?php echo( $self ); ?>" method = "post">
请输入您的姓名：
<input type = "text" name = "user"><br><br>
请选择您喜欢的颜色：<br>
<input type = "radio" name = "color" value = "#FF0000">Red
<input type = "radio" name = "color" value = "#00FF00">Green
<input type = "radio" name = "color" value = "#0000FF">Blue
<br><br>
<input type = "submit" value = "确认提交">
</form>
</body>
</html>