php读取配置文件的代码一例

/**
* 读取配置文件
* by bbs.it-home.org
*/
if (!isset($config)){
    $ARR=file("admin.conf");
    foreach($ARR as $val) {
        $val=chop($val);
        if (ereg('^[[:space:]]*#',$val) || ereg('^[[:space:]]*$',$val))
            continue;
        list($key,$v)=split(":[[:space:]]*",$val,2);
        if (preg_match("/%\{(.+)\}/",$v,$matches)){
            $val=$config[$matches[1]];
            $v=preg_replace("/%\{$matches[1]\}/",$val,$v);
        }
        $config["$key"]="$v";
    }
    echo "";
    var_dump($config);
}