php读写init配置文件

//----------------------------------------------------------------
<?php
/**
* 测试用ini文件定义配置项
* @author snmoney@gmail.com
* @copyright 2010
*/

//写入的部分
for($i=0;$i<5;$i++){
$testStr = "online = $i \r\npasswd = asdasdfawe";
file_put_contents("test.ini",$testStr);  //写入的关键～
echo "$i >";
}
echo " OK!";
//读取
$cfg = parse_ini_file("test.ini");
echo "<br> online? ".$cfg['online'];
echo "<br> passwd? ".$cfg['passwd'];
?>