如何将一个值放入多个类别 [英] How to put a value in multiple categories
本文介绍了如何将一个值放入多个类别的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在我解决了在数据库中的 game_category 字段下查看超过 1 个游戏类别的问题后，我面临另一个问题.我的网站通过 $game_category 变量决定哪个游戏属于哪个类别，但是现在，我插入了一个具有 4 个类别的游戏，而不是 game_category 记录下的动作"，我有动作，空间，策略，射击"，所以游戏无处可去......
这是我的代码的一部分，显示了按game_category查看结果的逻辑:
if(isset($_GET['genre'])){$game_category = $_GET['流派'];$select_games = "SELECT * FROM games WHERE game_category='$game_category' ORDER BY game_name ASC";如何制作一个系统来读取具有多个类别的记录?
有什么想法吗?:(
由于我的问题中没有足够的信息，我将在此处发布 2 个涉及该问题的 php 文件:1. "insert_games.php" - 用于通过管理面板上传新游戏(完美运行).2. "categories.php" - 用于查看游戏所属的正确类别.
这是 insert_games.php:
<?phpinclude("../includes/connect.php");if(isset($_POST['提交'])){$game_name = $_POST['game_name'];$game_category = implode(",",$_POST['game_category']);$game_keywords = $_POST['game_keywords'];$game_image = $_FILES['game_image']['name'];$image_tmp = $_FILES['game_image']['tmp_name'];$game_code = $_FILES['game_code']['name'];$code_tmp = $_FILES['game_code']['tmp_name'];$game_file = $_FILES['game_file']['name'];$file_tmp = $_FILES['game_file']['tmp_name'];$game_desc = $_POST['game_desc'];if($game_name=='' or $game_category=='' or $game_keywords=='' or $game_image=='' or $game_code=='' or $game_file==''){echo "";出口();}别的 {$path = "../games/$game_name";mkdir("$path", 0777);move_uploaded_file($image_tmp,"../images/games_images/$game_image");move_uploaded_file($code_tmp,"$path/$game_code");move_uploaded_file($file_tmp,"$path/$game_file");$insert_query = "插入游戏 (game_name,game_category,game_keywords,game_image,game_code,game_file,game_desc) 值 ('$game_name','$game_category','$game_keywords','$game_image','$game_code','$game_file','$game_desc')";if($game_category == '3d'){$three_d_status = '已检查';}if($game_category == '动作'){$action_status = '检查';}if($game_category == '冒险'){$adventure_status = '检查';}if($game_category == '街机'){$arcade_status = '检查';}如果($game_category == '大脑'){$brain_status = '检查';}if($game_category == '卡片'){$cards_status = '已检查';}if($game_category == '破坏'){$destruction_status = '检查';}if($game_category == '教育'){$education_status = '检查';}如果($game_category == '极端'){$extreme_status = '检查';}if($game_category == '战斗'){$fighting_status = '检查';}if($game_category == '飞行'){$flying_status = '检查';}如果($game_category == '女孩'){$girls_status = '检查';}if($game_category == '假期'){$holidays_status = '检查';}if($game_category == 'hidden_objects'){$hidden_objects_status = '已检查';}if($game_category == 'motocross'){$motocross_status = '检查';}if($game_category == '多人'){$multiplayer_status = '检查';}if($game_category == 'new'){$new_status = '已检查';}if($game_category == '拼图'){$puzzle_status = '已检查';}if($game_category == '赛车'){$racing_status = '检查';}如果($game_category == 'fps'){$fps_status = '检查';}if($game_category == '空格'){$space_status = '已检查';}if($game_category == '体育'){$sports_status = '检查';}if($game_category == '策略'){$strategy_status = '检查';}if($game_category == '特技'){$stunt_status = '检查';}如果($game_category == 'top_rated'){$top_rated_status = '检查';}if($game_category == 'words'){$words_status = '已检查';}if($game_category == '僵尸'){$zombies_status = '检查';}如果(mysql_query($insert_query)){echo "<script>alert('游戏上传成功！')</script>";echo "<script>window.open('view_games.php','_self')</script>";}}}?><?php } ?><!DOCTYPE HTML><头><link href="css/insert_game.css" rel="stylesheet" type="text/css"><身体><form method="post" id="insert_form" action="insert_games.php" enctype="multipart/form-data"><table id="insert_games_table" width="680" border="1" align="center"><tr><td id="insert_games_table_title" colspan="2" align="center">插入新游戏</td></tr><tr><td id="insert_cat_name">游戏名称:</td><td><input type="text" name="game_name" size="80"></td></tr><tr><td id="insert_cat_name">游戏类别:</td><td id="insert_cat_select"><input class="checkbox" type="checkbox" name="game_category[]" value="3d"<?php print $three_d_status;?>/><span>3D</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="action"<?php print $action_status;?>/><span>动作</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="adventure"<?php print $adventure_status;?>/><span>冒险</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="arcade"<?php print $arcade_status;?>/><span>街机</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="brain"<?php print $brain_status;?>/><span>大脑</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="cards"<?php print $cards_status;?>/><span>卡片</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="destruction"<?php print $destruction_status;?>/><span>销毁</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="education"<?php print $education_status;?>/><span>教育</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="extreme"<?php print $extreme_status;?>/><span>极限</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="fighting"<?php print $fighting_status;?>/><span>战斗</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="flying"<?php print $flying_status;?>/><span>飞行</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="girls"<?php print $girls_status;?>/><span>女孩</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="holidays"<?php print $holidays_status;?>/><span>假期</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="hidden_objects"<?php print $hidden_objects_status;?>/><span>隐藏对象</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="motocross"<?php print $motocross_status;?>/><span>越野摩托车</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="multiplayer"<?php print $multiplayer_status;?>/><span>多人游戏</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="new"<?php print $new_status;?>/><span>新游戏</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="puzzle"<?php print $puzzle_status;?>/><span>拼图</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="racing"<?php print $racing_status;?>/><span>赛车</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="fps"<?php print $fps_status;?>/><span>FPS</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="space"<?php print $space_status;?>/><span>空格</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="sports"<?php print $sports_status;?>/><span>体育</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="strategy"<?php print $strategy_status;?>/><span>策略</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="stunt"<?php print $stunt_status;?>/><span>特技</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="top_rated"<?php print $top_rated_status;?>/><span>最受好评</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="words"<?php print $words_status;?>/><span>词</span><br><input class="checkbox" type="checkbox" name="game_category[]" value="zombies"<?php print $zombies_status;?>/><span>僵尸</span><br></td></tr><tr><td id="insert_cat_name">游戏关键词:</td><td><textarea id="insert_text_area" name="game_keywords"></textarea></td></tr><tr><td id="insert_cat_name">游戏图片:</td><td><input type="file" name="game_image"></td></tr><tr><td id="insert_cat_name">游戏 HTML:</td><td><input type="file" name="game_code"></td></tr><tr><td id="insert_cat_name">游戏 Flash 文件:</td><td><input type="file" name="game_file"></td></tr><tr><td id="insert_cat_name">游戏说明:</td><td><textarea id="insert_text_area" name="game_desc"></textarea></td></tr><tr><td colspan="2" align="center"><input type="submit" name="submit" value="Publish Game Now" id="insert_submit"></td></tr></表单></html>我知道它有点太长了，因为有很多类别使用 HTML 表单和if"语句...
这是categories.php:
<头><身体><div class='container'><!--容器的开始--><div><?php include("includes/header.php");?></div><div><?php include("includes/navbar.php");?></div><div><?php include("includes/right_col.php");?></div><!--主列的开始--><div><?php echo '<img id="category_title" src="images/genres/' . $_GET[genre] . '.png"';?></div><?phpinclude("includes/connect.php");if(isset($_GET['流派'])){$game_category = $_GET['流派'];$select_games = "SELECT * FROM games WHERE game_category IN ($game_category) ORDER BY game_name ASC";$run_games = mysql_query($select_games);echo '';$游戏= 0;while($row = mysql_fetch_array($run_games)){//在 9 场比赛后创建一个新行if($games%9 == 0) {如果($游戏> 0){//并且仅当它不是第一行时才关闭前一行回声'</tr>';}echo '';}//在 3 场比赛后创建一个新列if($games%3 == 0) {如果($游戏> 0){//并且只有在它不是第一场比赛时才关闭它回声'</td>';}echo '';}$game_id = $row['game_id'];$game_name = $row['game_name'];$game_category = $row['game_name'];$game_keywords = $row['game_name'];$game_image = $row['game_image'];?><div class="game_grid"><div id="game_name"><a href="game_page.php?id=<?php echo $game_id; ?>"><?php echo $game_name;?></a><br/></div><div id="game_image"><a href="game_page.php?id=<?php echo $game_id; ?>"><img src="images/games_images/<?php回声 $game_image; ?>"width="120" height="120"/></a></div><?php$游戏++；}}?>
<!--主列的结尾-->
<!--容器结束--><div><?php include("includes/footer.php");?></div></html>
注意:我从标签中删除了所有内容，因为它是私有的并且与问题无关:)...
解决方案
您很可能需要一个查找表.由 id(唯一)、game_id(外键)和 category_id(或 category_name)组成的 game_categories 表.这样，您可以将同一游戏存储在多个类别中.然后您的查询可以在运行时加入，具体取决于您要完成的任务.我希望这会有所帮助！
After I solved the problem to view more than 1 game category under the game_category field in my database, I'm facing another issue.
My website decides which game goes in which category by the $game_category variable, but now, I inserted a game with 4 categories, so instead of "action" under game_category record, I have "action,space,strategy,shooting", so the game is sitting nowhere...
This is a part of my code that shows the logic of viewing results by game_category:
if(isset($_GET['genre'])){
$game_category = $_GET['genre'];
$select_games = "SELECT * FROM games WHERE game_category='$game_category' ORDER BY game_name ASC";
How can I make a system to read a record with more than one category?
Any ideas? :(
EDIT: Since there is not enough information in my question I will post here 2 php files that involved in the problem: 1. "insert_games.php" - Used to upload new games via admin panel (works perfectly). 2. "categories.php" - Used to view games on the right category they are belong to.
This is insert_games.php:
<?php
session_start();
if(!isset($_SESSION['user_name'])){
header("location:login.php");
}
else {
?>
<?php
include("../includes/connect.php");
if(isset($_POST['submit'])){
$game_name = $_POST['game_name'];
$game_category = implode(",",$_POST['game_category']);
$game_keywords = $_POST['game_keywords'];
$game_image = $_FILES['game_image']['name'];
$image_tmp = $_FILES['game_image']['tmp_name'];
$game_code = $_FILES['game_code']['name'];
$code_tmp = $_FILES['game_code']['tmp_name'];
$game_file = $_FILES['game_file']['name'];
$file_tmp = $_FILES['game_file']['tmp_name'];
$game_desc = $_POST['game_desc'];
if($game_name=='' or $game_category=='' or $game_keywords=='' or $game_image=='' or $game_code=='' or $game_file==''){
echo "<script>alert('Please enter all the fields below!')</script>";
exit();
}
else {
$path = "../games/$game_name";
mkdir("$path", 0777);
move_uploaded_file($image_tmp,"../images/games_images/$game_image");
move_uploaded_file($code_tmp,"$path/$game_code");
move_uploaded_file($file_tmp,"$path/$game_file");
$insert_query = "insert into games (game_name,game_category,game_keywords,game_image,game_code,game_file,game_desc) values ('$game_name','$game_category','$game_keywords','$game_image','$game_code','$game_file','$game_desc')";
if($game_category == '3d'){
$three_d_status = 'checked';
}
if($game_category == 'action'){
$action_status = 'checked';
}
if($game_category == 'adventure'){
$adventure_status = 'checked';
}
if($game_category == 'arcade'){
$arcade_status = 'checked';
}
if($game_category == 'brain'){
$brain_status = 'checked';
}
if($game_category == 'cards'){
$cards_status = 'checked';
}
if($game_category == 'destruction'){
$destruction_status = 'checked';
}
if($game_category == 'education'){
$education_status = 'checked';
}
if($game_category == 'extreme'){
$extreme_status = 'checked';
}
if($game_category == 'fighting'){
$fighting_status = 'checked';
}
if($game_category == 'flying'){
$flying_status = 'checked';
}
if($game_category == 'girls'){
$girls_status = 'checked';
}
if($game_category == 'holidays'){
$holidays_status = 'checked';
}
if($game_category == 'hidden_objects'){
$hidden_objects_status = 'checked';
}
if($game_category == 'motocross'){
$motocross_status = 'checked';
}
if($game_category == 'multiplayer'){
$multiplayer_status = 'checked';
}
if($game_category == 'new'){
$new_status = 'checked';
}
if($game_category == 'puzzle'){
$puzzle_status = 'checked';
}
if($game_category == 'racing'){
$racing_status = 'checked';
}
if($game_category == 'fps'){
$fps_status = 'checked';
}
if($game_category == 'space'){
$space_status = 'checked';
}
if($game_category == 'sports'){
$sports_status = 'checked';
}
if($game_category == 'strategy'){
$strategy_status = 'checked';
}
if($game_category == 'stunt'){
$stunt_status = 'checked';
}
if($game_category == 'top_rated'){
$top_rated_status = 'checked';
}
if($game_category == 'words'){
$words_status = 'checked';
}
if($game_category == 'zombies'){
$zombies_status = 'checked';
}
if(mysql_query($insert_query)){
echo "<script>alert('The Game Uploaded Successfully!')</script>";
echo "<script>window.open('view_games.php','_self')</script>";
}
}
}
?>
<?php } ?>
<!DOCTYPE HTML>
<html>
<head>
<link href="css/insert_game.css" rel="stylesheet" type="text/css">
</head>
<body>
<form method="post" id="insert_form" action="insert_games.php" enctype="multipart/form-data">
<table id="insert_games_table" width="680" border="1" align="center">
<tr>
<td id="insert_games_table_title" colspan="2" align="center">Insert New Game</td>
</tr>
<tr>
<td id="insert_cat_name">Game name:</td>
<td><input type="text" name="game_name" size="80"></td>
</tr>
<tr>
<td id="insert_cat_name">Game category:</td>
<td id="insert_cat_select"><input class="checkbox" type="checkbox" name="game_category[]" value="3d"<?php print $three_d_status; ?>/><span>3D</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="action"<?php print $action_status; ?>/><span>Action</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="adventure"<?php print $adventure_status; ?>/><span>Adventure</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="arcade"<?php print $arcade_status; ?>/><span>Arcade</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="brain"<?php print $brain_status; ?>/><span>Brain</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="cards"<?php print $cards_status; ?>/><span>Cards</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="destruction"<?php print $destruction_status; ?>/><span>Destruction</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="education"<?php print $education_status; ?>/><span>Education</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="extreme"<?php print $extreme_status; ?>/><span>Extreme</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="fighting"<?php print $fighting_status; ?>/><span>Fighting</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="flying"<?php print $flying_status; ?>/><span>Flying</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="girls"<?php print $girls_status; ?>/><span>Girls</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="holidays"<?php print $holidays_status; ?>/><span>Holidays</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="hidden_objects"<?php print $hidden_objects_status; ?>/><span>Hidden Objects</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="motocross"<?php print $motocross_status; ?>/><span>Motocross</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="multiplayer"<?php print $multiplayer_status; ?>/><span>Multiplayer</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="new"<?php print $new_status; ?>/><span>New Games</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="puzzle"<?php print $puzzle_status; ?>/><span>Puzzle</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="racing"<?php print $racing_status; ?>/><span>Racing</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="fps"<?php print $fps_status; ?>/><span>FPS</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="space"<?php print $space_status; ?>/><span>Space</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="sports"<?php print $sports_status; ?>/><span>Sports</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="strategy"<?php print $strategy_status; ?>/><span>Strategy</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="stunt"<?php print $stunt_status; ?>/><span>Stunt</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="top_rated"<?php print $top_rated_status; ?>/><span>Top Rated</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="words"<?php print $words_status; ?>/><span>Words</span><br>
<input class="checkbox" type="checkbox" name="game_category[]" value="zombies"<?php print $zombies_status; ?>/><span>Zombies</span><br></td>
</tr>
<tr>
<td id="insert_cat_name">Game keywords:</td>
<td><textarea id="insert_text_area" name="game_keywords"></textarea></td>
</tr>
<tr>
<td id="insert_cat_name">Game image:</td>
<td><input type="file" name="game_image"></td>
</tr>
<tr>
<td id="insert_cat_name">Game HTML:</td>
<td><input type="file" name="game_code"></td>
</tr>
<tr>
<td id="insert_cat_name">Game Flash File:</td>
<td><input type="file" name="game_file"></td>
</tr>
<tr>
<td id="insert_cat_name">Game description:</td>
<td><textarea id="insert_text_area" name="game_desc"></textarea></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" name="submit" value="Publish Game Now" id="insert_submit"></td>
</tr>
</form>
</body>
</html>
I know its a bit too long because there are many categories using the HTML form and the "if" statement...
This is the categories.php:
<!DOCTYPE HTML>
<html>
<head>
</head>
<body>
<div class='container'> <!--Start of the container-->
<div><?php include("includes/header.php"); ?></div>
<div><?php include("includes/navbar.php"); ?></div>
<div><?php include("includes/right_col.php"); ?></div>
<div class='main_col'> <!--Start of the Main Column-->
<div><?php echo '<img id="category_title" src="images/genres/' . $_GET[genre] . '.png"'; ?></div>
<div class='main_content'>
<?php
include("includes/connect.php");
if(isset($_GET['genre'])){
$game_category = $_GET['genre'];
$select_games = "SELECT * FROM games WHERE game_category IN ($game_category) ORDER BY game_name ASC";
$run_games = mysql_query($select_games);
echo '<table>';
$games = 0;
while($row = mysql_fetch_array($run_games)){
// make a new row after 9 games
if($games%9 == 0) {
if($games > 0) {
// and close the previous row only if it's not the first
echo '</tr>';
}
echo '<tr>';
}
// make a new column after 3 games
if($games%3 == 0) {
if($games > 0) {
// and only close it if it's not the first game
echo '</td>';
}
echo '<td>';
}
$game_id = $row['game_id'];
$game_name = $row['game_name'];
$game_category = $row['game_name'];
$game_keywords = $row['game_name'];
$game_image = $row['game_image'];
?>
<div class="game_grid">
<div id="game_name"><a href="game_page.php?id=<?php echo $game_id; ?>"><?php echo $game_name; ?></a><br /></div>
<div id="game_image"><a href="game_page.php?id=<?php echo $game_id; ?>"><img src="images/games_images/<?php echo $game_image; ?>" width="120" height="120" /></a></div>
</div>
<?php
$games++;
}
}
?>
</table>
</div>
</div> <!--End of the Main Column-->
</div> <!--End of the container-->
<div><?php include("includes/footer.php"); ?></div>
</body>
</html>
Note: I removed everything from the tags, because its private and its not relevant to the question :)...
解决方案
Most likely you will need a lookup table of sorts. A table of game_categories consisting of id (unique), game_id (foreign key), and category_id (or category_name). That way, you can have the same game stored in multiple categories. Then your queries can be joined at runtime depending on what you are trying to accomplish. I hope this helps!
这篇关于如何将一个值放入多个类别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
