/**
*功能：实现像JSP,ASP里Application那样的全局变量
*author:[url]www.itzg.net[/url]
*version:1.0
*版权：如许转载请保留版权声明
*/
/*+----------------example----------------------
require_once("Application.php");
$arr=array(0=>"Hi",1=>"Yes");
$a=newApplication();
$a->setValue("t1","arui");
$a->setValue("arr",$arr);
$u=$a->getValue();
---------------------------------------------+*/
classApplication
{
/**保存共享变量的文件*/
var$save_file='Application/Application';
/**共享变量的名称*/
var$application=null;
/**序列化之后的数据*/
var$app_data='';
/**是否已经做过setValue的操作防止频繁写文件操作*/
var$__writed=false;
/**
*构造函数
*/
functionApplication()
{
$this->application=array();
}
/**
*设置全局变量
*@paramstring$var_name要加入到全局变量的变量名
*@paramstring$var_value变量的值
*/
functionsetValue($var_name,$var_value)
{
if(!is_string($var_name)||empty($var_name))
returnfalse;
if($this->__writed)
{
$this->application[$var_name]=$var_value;
return;
}
$this->application=$this->getValue();
if(!is_array($this->application))
settype($this->application,"array");
$this->application[$var_name]=$var_value;
$this->__writed=true;
$this->app_data=@serialize($this->application);
$this->__writeToFile();
}
/**
*取得保存在全局变量里的值
*@returnarray
*/
functiongetValue()
{
if(!is_file($this->save_file))
$this->__writeToFile();
return@unserialize(@file_get_contents($this->save_file));
}
/**
*写序列化后的数据到文件
*@scopeprivate
*/
function__writeToFile()
{
$fp=@fopen($this->save_file,"w");
@fwrite($fp,$this->app_data);
@fclose($fp);
}
}
?>
