用Flash圖形化資料(二)_PHP教程

让我们烤点甜饼（做饼图）
成功地安装了PHP地Shockwave Flash支持后,就可以用PHP创建Shockwave文件了。学习的最好方法就是直接跳到程序去，所以下面就让我们看看程序。第一个文件包括怎样使用类的示例代码，同时也显示了如何将一个Flash文件嵌入到HTML文档中。


// include class needed for flash graph
include("class.pie.flash.php");

mysql_connect ("localhost", "root", "");

$query = "SELECT DISTINCT city_name, COUNT(city_id)
FROM city
GROUP BY city_name;";

$result = mysql_db_query ("hermes",$query);

while ($row = mysql_fetch_array ($result)) {
$city_counts[] = $row["COUNT(city_id)"];
$city_names[] = $row["city_name"];
}

mysql_free_result ($result);

// Instantiate new object
$graph = new flash_pie($city_counts, "city.swf");

// set graph title (should not exceed about 25 characters)
$graph->pie_title("City Results", 30);

// set graph legend
$graph->pie_legend($city_names);

// show graph
$graph->show();

// free resources
$graph->close();

?>  

type="application/x-shockwave-flash" width=600 height=300>

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