php - 我需要不注册具有相同用户名的用户的 PHP 脚本

Question

我需要 PHP 脚本，它不注册具有相同用户名的用户。我编写脚本，它工作正常，但它注册具有相同 USERNAME 的用户。我希望我的脚本检查用户名，如果它可用继续注册，如果它不可用停止注册。对不起，我的英语不好 :d :D PLZ 写这个脚本。

这是我的脚本，请告诉如何编辑它

我的脚本

剧本：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>


<body>


<?php require_once('Connections/tourname_regcs16.php'); ?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
  }


  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);


  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;    
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  }
  return $theValue;
}
}


$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
  $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}


if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
  $insertSQL = sprintf("INSERT INTO members (team_name, team_member1, team_member2, team_member3, team_member4, team_member5, email, phone_number, emoney, password,win ,defeat ,score , tour_status_complete, tour_status_progress, tour_status_willstart, team_status_payed, team_status_notpayed, team_place_1, team_place_2, team_place_3, team_place_4, team_place_5, team_place_6, team_place_7, team_place_8, team_place_9, team_place_10, team_place_11, team_place_12, team_place_13, team_place_14, team_place_15, team_place_16, team_place_17, team_place_18, team_place_19, team_place_20, team_place_final, `data`) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)",
                       GetSQLValueString($_POST['team_name'], "text"),
                       GetSQLValueString($_POST['team_member1'], "text"),
                       GetSQLValueString($_POST['team_member2'], "text"),
                       GetSQLValueString($_POST['team_member3'], "text"),
                       GetSQLValueString($_POST['team_member4'], "text"),
                       GetSQLValueString($_POST['team_member5'], "text"),
                       GetSQLValueString($_POST['email'], "text"),
                       GetSQLValueString($_POST['phone_number'], "text"),
                       GetSQLValueString($_POST['emoney'], "text"),
                       GetSQLValueString($_POST['password'], "text"),
                       GetSQLValueString($_POST['win'], "text"),
                       GetSQLValueString($_POST['defeat'], "text"),
                       GetSQLValueString($_POST['score'], "text"),
                       GetSQLValueString($_POST['tour_status_complete'], "text"),
                       GetSQLValueString($_POST['tour_status_progress'], "text"),
                       GetSQLValueString($_POST['tour_status_willstart'], "text"),
                       GetSQLValueString($_POST['team_status_payed'], "text"),
                       GetSQLValueString($_POST['team_status_notpayed'], "text"),
                       GetSQLValueString($_POST['team_place_1'], "text"),
                       GetSQLValueString($_POST['team_place_2'], "text"),
                       GetSQLValueString($_POST['team_place_3'], "text"),
                       GetSQLValueString($_POST['team_place_4'], "text"),
                       GetSQLValueString($_POST['team_place_5'], "text"),
                       GetSQLValueString($_POST['team_place_6'], "text"),
                       GetSQLValueString($_POST['team_place_7'], "text"),
                       GetSQLValueString($_POST['team_place_8'], "text"),
                       GetSQLValueString($_POST['team_place_9'], "text"),
                       GetSQLValueString($_POST['team_place_10'], "text"),
                       GetSQLValueString($_POST['team_place_11'], "text"),
                       GetSQLValueString($_POST['team_place_12'], "text"),
                       GetSQLValueString($_POST['team_place_13'], "text"),
                       GetSQLValueString($_POST['team_place_14'], "text"),
                       GetSQLValueString($_POST['team_place_15'], "text"),
                       GetSQLValueString($_POST['team_place_16'], "text"),
                       GetSQLValueString($_POST['team_place_17'], "text"),
                       GetSQLValueString($_POST['team_place_18'], "text"),
                       GetSQLValueString($_POST['team_place_19'], "text"),
                       GetSQLValueString($_POST['team_place_20'], "text"),
                       GetSQLValueString($_POST['team_place_final'], "text"),
                       GetSQLValueString($_POST['data'], "date"));


  mysql_select_db($database_tourname_regcs16, $tourname_regcs16);
  $Result1 = mysql_query($insertSQL, $tourname_regcs16) or die(mysql_error());


  $insertGoTo = "cs16_reg_complete.php";
  if (isset($_SERVER['QUERY_STRING'])) {
    $insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
    $insertGoTo .= $_SERVER['QUERY_STRING'];
  }
  header(sprintf("Location: %s", $insertGoTo));
}








?>
<style type="text/css">
#form1 table tr td p {
    text-align: center;
}
</style>




<form action="<?php echo $editFormAction; ?>" method="post" name="form1" id="form1">
  <table width="493" align="center">
    <tr valign="baseline">
      <td width="120" align="right" nowrap="nowrap">გუნდის სახელი:</td>
      <td width="250"><p><input type="text" name="team_name" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">გუნდის წევრი №1:</td>
      <td><p><input type="text" name="team_member1" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">გუნდის წევრი №2:</td>
      <td><p><input type="text" name="team_member2" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">გუნდის წევრი №3:</td>
      <td><p><input type="text" name="team_member3" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">გუნდის წევრი №4:</td>
      <td><p><input type="text" name="team_member4" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">გუნდის წევრი №5:</td>
      <td><p><input type="text" name="team_member5" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">Emoney:</td>
      <td><p><input type="text" name="emoney" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">ელ. ფოსტა:</td>
      <td><p><input type="text" name="email" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">მობ. ნომერი:</td>
      <td><p><input type="text" name="phone_number" value="" size="32" /></p></td>
      <td>&nbsp;</td>
    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">პაროლი:</td>
      <td><p><input type="password" name="password" value="" size="32" /></p></td>

    </tr>
    <tr valign="baseline">
      <td nowrap="nowrap" align="right">&nbsp;</td>
      <td><p><br><input type="submit" value="რეგისტრაცია" /></p></td>
      <td>&nbsp;</td>
    </tr>
  </table>
  <input type="hidden" name="win" value="0" />
  <input type="hidden" name="defeat" value="0" />
  <input type="hidden" name="score" value="0" />
  <input type="hidden" name="tour_status_complete" value="Complete" />
  <input type="hidden" name="tour_status_progress" value="In Progress" />
  <input type="hidden" name="tour_status_willstart" value="Is Starting" />
  <input type="hidden" name="team_status_payed" value="Payed" />
  <input type="hidden" name="team_status_notpayed" value="Not Payed" />
  <input type="hidden" name="team_place_1" value="Round I" />
  <input type="hidden" name="team_place_2" value="Round II" />
  <input type="hidden" name="team_place_3" value="Round III" />
  <input type="hidden" name="team_place_4" value="Round IV" />
  <input type="hidden" name="team_place_5" value="Round V" />
  <input type="hidden" name="team_place_6" value="Round VI" />
  <input type="hidden" name="team_place_7" value="Round VII" />
  <input type="hidden" name="team_place_8" value="Round VIII" />
  <input type="hidden" name="team_place_9" value="Round IX" />
  <input type="hidden" name="team_place_10" value="Round X" />
  <input type="hidden" name="team_place_11" value="Round XI" />
  <input type="hidden" name="team_place_12" value="Round XII" />
  <input type="hidden" name="team_place_13" value="Round XIII" />
  <input type="hidden" name="team_place_14" value="Round XIV" />
  <input type="hidden" name="team_place_15" value="Round XV" />
  <input type="hidden" name="team_place_16" value="Round XVI" />
  <input type="hidden" name="team_place_17" value="Round XVII" />
  <input type="hidden" name="team_place_18" value="Round XVIII" />
  <input type="hidden" name="team_place_19" value="Round XIX" />
  <input type="hidden" name="team_place_20" value="Round XX" />
  <input type="hidden" name="team_place_final" value="Final" />
  <input type="hidden" name="data" value="<?php 
echo "Server time: ".date("M d, Y - g:i:s A"); 
?>" />
  <input type="hidden" name="MM_insert" value="form1" />
</form>
</body>
</html>

score 2 · Accepted Answer

看起来您正在寻找教程，因为您自己没有尝试过这个问题。假设您使用 MySQL，这里有一个简洁的教程。

将来，我建议您展示您的一些工作，因为这不是一个为您工作的社区，我们在这里为您提供帮助。

score 1 · Accepted Answer

火; php mysql 查询用户名ex。select * from users where username='$username'. 如果它返回任何行，则用户名已经分配，否则您可以注册该用户。

score 1 · Accepted Answer

您只需在注册阶段，当用户按下注册按钮时，查看数据库并尝试找到输入用户名的用户：

SELECT * FROM users WHERE username = ?

如果找到记录，则只需显示注册错误“使用此用户名的用户已存在”如果未找到记录 - 在数据库用户表中创建新记录：

INSERT INTO users SET username = ?, ...

score 1 · Accepted Answer

您可以在 PHP 中的表单提交操作中检查它。例如..

if(isset($_POST) && (!empty($_POST)){
  $username = $_POST['username'];
   $username_exist_query  = "SELECT * from usertable where username = '".$usernae."' WHERE conditions";
   $username_result = mysql_query($username_exist_query) or die(mysql_error());
   if($username_result){
      if(mysql_num_rows($username_result) == 0){
            //Do Registration operation
     }else{
         echo "Username already exist!";
     }
  }

}

希望此示例代码对您有所帮助。

谢谢

score 0 · Accepted Answer

在某些时候，您将带有用户名字符串的 AJAX 请求（即通过 jQuery）发送到一些简单的 PHP 脚本，该脚本接受用户名，运行 SQL 查询以检查用户名是否已经在数据库中并返回结果。

php - 我需要不注册具有相同用户名的用户的 PHP 脚本

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