我的论坛中有两个等级Admin = 1和User = 0然后这段代码正在执行，管理员获取红色名称。
if($info['rank'] == 1) { $x= "<a class='admin'>".$last_user."</a>";
} else { $x= "<a class='user'>".$last_user."</a>"; }
但每个人都有红名......
答案 0 :(得分：0)
if (mysql_num_rows($res) > 0) {
while ($row = mysql_fetch_assoc($res)) {
$tid = $row['id'];
$cid = $row['category_id'];
$title = $row['topic_title'];
$views = $row['topic_views'];
$date = $row['topic_date'];
$creator = $row['topic_creator'];
if ($row['topic_last_user']== "") { $last_user = getusername($row['topic_creator']); } else { $last_user = getusername($row['topic_last_user']); }
if ($row['topic_last_user']== "") { $last2_user = 'Started by'; } else { $last2_user = 'Most recent by'; }
$topics .= "<li class='category'><div class='left_cat'>
<a class='underline' href='view_topic.php?cid=".$cid."&tid=".$tid."'><div class='title'><i class='icon-comment'></i> ".$title."</div></a>
<div class='info'><i class='icon-comments icon-1'></i> ".topicreplies($cid, $tid)." Comments <i class='icon-user icon-1'>
</i>".$last2_user." ";
语法错误在最后一行，即“。$ last2_user”。 只需关闭“＆amp; nbsp”的报价; 这将解决您的问题。
答案 1 :(得分：0)
看起来您正在尝试在正在创建的字符串中插入if语句。据我所知，你做不到这一点。但是，解决方案很简单。你结束字符串，插入你的if语句，然后追加你想要的其余部分。像这样：
if (mysql_num_rows($res) > 0) {
while ($row = mysql_fetch_assoc($res))
{
$tid = $row['id'];
$cid = $row['category_id'];
$title = $row['topic_title'];
$views = $row['topic_views'];
$date = $row['topic_date'];
$creator = $row['topic_creator'];
if ($row['topic_last_user']== "")
{ $last_user = getusername($row['topic_creator']); }
else
{ $last_user = getusername($row['topic_last_user']); }
if ($row['topic_last_user']== "")
{ $last2_user = 'Started by'; }
else
{ $last2_user = 'Most recent by'; }
$topics .= "<li class='category'><div class='left_cat'>
<a class='underline' href='view_topic.php?cid=".$cid."&tid=".$tid."'>
<div class='title'><i class='icon-comment'></i> ".$title."</div></a>
<div class='info'>
<i class='icon-comments icon-1'></i> ".topicreplies($cid, $tid)."
Comments <i class='icon-user icon-1'>
</i>".$last2_user." ";
// The string above is ended - and you insert your if statement.
// I changed the echo to an append to the string btw.
if ($info['rank'] == 1) { $topics .= "<div class='admin'>".$last_user."</div>"; } else { $topics .= "<div>".$last_user."</div>"; }
// Now you get to continue appending to the string.
$topics .= " <i class='icon-calendar'> </i> ".convertdate($date)."</div>
</div>";
$topics .= "<div class='right_cat'>
<div class='face'>
<img class='img_face' src='https://minotar.net/avatar/".getusername($creator)."/40.png'></div>
<div class='comments_cat'>
<div class='comments_top'>Comments</div>
<div class='comments'>".topicreplies($cid, $tid)."</div></div>
<div class='views_cat'>
<div class='views_top'>Views</div>
<div class='views'>".$views."</div></div>
</div></li>";
}
echo $topics;
} else {
echo "<div class='alert alert-danger text5'>There are no topics available yet.</div>";
}
答案 2 :(得分：0)
使用您想要的$ x。
<?PHP
if (mysql_num_rows($res) > 0) {
while ($row = mysql_fetch_assoc($res)) {
if($info[rank] == 1) { $x= "<div class='admin'>".$last_user."</div>"; } else { $x="<div>".$last_user."</div>"; }
$tid = $row['id'];
$cid = $row['category_id'];
$title = $row['topic_title'];
$views = $row['topic_views'];
$date = $row['topic_date'];
$creator = $row['topic_creator'];
if ($row['topic_last_user']== "") { $last_user = getusername($row['topic_creator']); } else { $last_user = getusername($row['topic_last_user']); }
if ($row['topic_last_user']== "") { $last2_user = 'Started by'; } else { $last2_user = 'Most recent by'; }
$topics .="
<li class='category'><div class='left_cat'>
<a class='underline' href='view_topic.php?cid=".$cid."&tid=".$tid."'>
<div class='title'><i class='icon-comment'></i> ".$title."</div></a>
<div class='info'><i class='icon-comments icon-1'></i> ".topicreplies($cid, $tid)." Comments <i class='icon-user icon-1'>
</i>".$last2_user."
$x
<i class='icon-calendar'> </i> ".convertdate($date)."</div>
</div>";
$topics .= "<div class='right_cat'>
<div class='face'>
<img class='img_face' src='https://minotar.net/avatar/".getusername($creator)."/40.png'></div>
<div class='comments_cat'>
<div class='comments_top'>Comments</div>
<div class='comments'>".topicreplies($cid, $tid)."</div></div>
<div class='views_cat'>
<div class='views_top'>Views</div>
<div class='views'>".$views."</div></div>
</div></li>";
}
echo $topics;
} else {
echo "<div class='alert alert-danger text5'>There are no topics available yet.</div>";
}
?>
我在顶部为你做变量。 希望它有效
答案 3 :(得分：0)
以下代码是我在上面提供的示例中提供的代码，Here
<style type="text/css">
.user { font-weight:900; color: #000; text-decoration: none !important; }
.admin { font-weight:900; color: #F00; text-decoration: none !important; }
</style>
<form action="" method="POST">
Input number and press enter:
</br>User = 0 Admin = 1</br>
<input name="rank" id="rank" type="text" />
</form>
<?php
if (isset($_POST['rank'])) {
$info['rank'] = $_POST['rank'];
if($info['rank'] == 1) { $x= "<a class='admin'>Admin</a>"; }
else { $x= "<a class='user'>User</a>"; }
echo $x;
}
?>
正如我在上面的评论中提到的，你的代码工作正常，除非在其他地方发生了一些事情，我们无法看到你给我们的东西。
没有表格。
<style type="text/css">
.user { font-weight:900; color: #000; text-decoration: none !important; }
.admin { font-weight:900; color: #F00; text-decoration: none !important; }
</style>
<?php
$info['rank'] = 1;
if($info['rank'] == 1) { $x= "<a class='admin'>Admin</a>"; }
else { $x= "<a class='user'>User</a>"; }
echo $x;
?>