求专家解答：php如何接收远程post过来的txt文本内容并同时写入mysql数据库呢？求完整代码！合适可加分！
txt文本内容字段格式：
学生id、学生名字、学生邮箱、学生地址
------解决思路----------------------
数据表：
CREATE TABLE `student` (
`id` int(10) unsigned NOT NULL auto_increment,
`xid` varchar(20) NOT NULL,
`name` varchar(20) NOT NULL,
`email` varchar(100) NOT NULL,
`address` varchar(100) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
postdemo.php
<?php
// 连接数据库
[email protected]_connect("数据库ip","帐号","密码") or die(mysql_error());
@mysql_select_db('数据库名',$conn) or die(mysql_error());
$action = isset($_REQUEST['action'])? $_REQUEST['action'] : '';
if($action=='add'){
$xid = isset($_POST['xid'])? mysql_escape_string($_POST['xid']) : '';
$name = isset($_POST['name'])? mysql_escape_string($_POST['name']) : '';
$email = isset($_POST['email'])? mysql_escape_string($_POST['email']) : '';
$address = isset($_POST['address'])? mysql_escape_string($_POST['address']) : '';
if($xid==''
------解决思路----------------------
$name==''
------解决思路----------------------
$email==''
------解决思路----------------------
$address==''){
echo 'please input data';
exit();
}
$sqlstr = "insert into student(xid,name,email,address) values('".$xid."','".$name."','".$email."','".$address."')";
mysql_query($sqlstr) or die(mysql_error());
header('location:postdemo.php');
}else{
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>demo</title>
</head>
<body>
<form name="form1" method="post" action="postdemo.php">
<p>学生id:<input type="text" name="xid"></p>
<p>学生名字:<input type="text" name="name"></p>
<p>学生邮箱:<input type="text" name="email"></p>
<p>学生地址:<input type="text" name="address"></p>
<p><input type="hidden" name="action" value="add"><input type="submit" name="b1" value="提交"></p>
</form>
<?php
$sqlstr = "select * from student order by id";
$query = mysql_query($sqlstr) or die(mysql_error());
$result = array();
while($thread=mysql_fetch_assoc($query)){
$result[] = $thread;
}
if($result){
echo '<table>';
echo '<th>NO</th><th>学生id</th><th>学生名字</th><th>学生邮箱</th><th>学生地址</th>';
foreach($result as $row){
echo '<tr>';
echo '<td>'.$row['id'].'</td>';
echo '<td>'.$row['xid'].'</td>';
echo '<td>'.$row['name'].'</td>';
echo '<td>'.$row['email'].'</td>';
echo '<td>'.$row['address'].'</td>';
echo '</tr>';
}
echo '</table>';
}
?>
</body>
</html>
<?php
}
?>