php教程 用戶注冊實例代碼，適合初學者
if($_POST[submit]){
checkusername($_POST[username]);
if($_SESSION["code"]==$_POST[code])
{
$username= str_replace(" ","",$_POST[username]);
$password=md5($_POST[password].ALL_PS);
$sql="INSERT INTO `member`.`user_list` (`uid`, `m_id`, `username`, `password`) VALUES (NULL, '$_POST[select]', '$username','$password' )";
mysql教程_query($sql);
echo "注冊成功";
}
else
{
echo "驗證碼錯誤"."<br>";
session_destroy();
}
}
function checkusername($username)
{
$sql2 = "select uid from user_list where username='".mysql_escape_string($username)."'";
$result = mysql_query($sql2) or die ('ERROR: '.mysql_error());
if(mysql_num_rows($result)>0)
{
echo "該用戶名已經存在，請更換！";
exit();
}
else{
echo "<script> location.href='reg.php'</script>";
}
}
?>
<LINK href="common.css教程" type=text/css rel=stylesheet>
<form action="" method="post">
用戶名：<input type="text" name="username" style="height:23px" /><br>
密 碼：<input type="password" name="password" style="height:23px" /><br>
職 位:
<select name="select" size="1" style="height:23px" / >
<option value="1">1</option>
<option value="2">2</option>
</select>
<br/>
驗證碼：<input type="code" name="code" size="10" style="height:23px" />
<img src="imgcode.php">
<br><br>
<input type="submit" name="submit" value="注冊"/>
</form>
