<?php

    function into($constr)

    {

        $con = mysql_connect("localhost","root","root");

        if (!$con)

          {

          die('Could not connect: ' . mysql_error());

          }

        mysql_select_db("sa", $con);

        mysql_query($constr);

        mysql_close($con);

    } 

 //调用实例

    $str="INSERT  INTO  doc (doc_num,doc_name,doc_from,doc_time) VALUES ('2014-3','a test name','','2014/9/25')";

    into($str);

?>