一些php函数

echo mysql_get_client_info()."<br/>";//获取mysql客户端信息

    echo mysql_get_host_info()."<br/>";//获取mysql主机信息

    echo mysql_get_server_info()."<br/>";//获取mysql服务器信息

    echo mysql_get_proto_info()."<br/>";//获取mysql协议信息

    mysql_set_charset("gz2313");//设置mysql编码

    $utp =mysql_client_encoding($mysql->lianjie("127.0.0.1", "root", ""));//返回默认字符集名称

    echo $utp;

    $arra=array("主机信息"=>array(mysql_get_client_info()),"服务器信息"=>array(mysql_get_server_info()));

    foreach ($arra as $k =>$value){

    var_dump($value) ."<br/>";

    }

    $str = "sdsss";

    echo strlen($str)."<br/>";//计算字符长度

    $str ="  sss asdqwe asd ";

$str = trim($str);//去掉两边的空格

    echo strlen($str);

    $replace = "binglan";

    $search ="cc";

    $subject= "hehe";

    echo str_replace($search, $replace, $subject);//关键字屏蔽

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