数据库文本在PHP while循环中打印两次

我有数据库表,其中包含以下列(id,title,image,text).到目前为止,我只有3行:

1  Lorem ipsum dolor      [Image-Link]  [Text is blank here]
2  [title is blank here]  [Image-Link]  [Text is blank here]
3  Mediocrem voluptaria   [Image-Link]  detraxit eleifend pr

这是我的代码:

HTML/PHP

query("SELECT * FROM table");

        if ($resultSet->num_rows != 0)
        {
             while ($rows = $resultSet->fetch_assoc())
            {
                $id = $rows["id"];


                if ($id <= 3)
                {
                    $images = $rows["image"];
                    $title = $rows["title"];
                    echo "
";
                    if ($id == 1)
                    {

                        echo "
";
                        echo "";
                        echo "
";
                        echo "
$title
";
                        echo "
";
                        echo "
";

                    }
                    echo "
";
                    if ($id == 2)
                    {
                        echo "";
                    }
                    else
                    {

                        echo "";
                        echo "
$title
";
                    }
                    echo "
";
                    echo "
";
                }


            }
        }

    ?>

CSS

body{
    position: relative;
}

#main{
    position: relative;
    width: 70%;
    height: auto;
    margin: 0 auto;
}

#mainImg{
    position: absolute;
    width: 65%;
}

#mainImg img{
    width: 100%;
}

#mainTitle{
    position: absolute;
    width: 100%;
    height: 25%;
    bottom: 1.5%;
    background-color: rgba(100, 0, 0, 0.7);
}

#mainTitle h2{
    color: white;
    text-align: center;
    font-family: sans-serif;
    font-size: 150%;
    opacity: 1;
}

#secDiv{
    position: absolute;
    right: 0%;
    top: 0%;
    width: 30%;
    height: auto;
}

#secImg{
    width: 45%;
    float: left;
}



#thirdImg{
    width: 45%;
    float: right;
}

#secDiv h2{
    clear: both;
    font-size: 12px;
}

我遇到的问题是,else语句中的h2标签是出于某种原因打印第一个标题和第三个标题.即使第一个标题已经在第一个if语句中打印出来,它仍然显示$ id必须至少为3.我做错了什么？

如果我们快速检查你的代码

            if ($id <= 3)
            {
                //Executes for ID: 1, 2 and 3
                if ($id == 1)
                {
                    //Executes for ID: 1
                }
                if ($id == 2)
                {
                    //Executes for ID: 2
                }
                else
                {
                    //Executes if ID !== 2
                    //So this part executes for ID: 1 and 3
                }
            }

如果我理解正确,你希望你的最后一个只为ID 3执行.在这种情况下你需要另一个IF,或者更好,看看PHP的switch语句(http://php.net/manual/en /control-structures.switch.php).