php - 如何在php的for循环中显示图像？

Question

我在 mysql 数据库中有 5 个图像路径和名称。

现在我想在 for 循环的 slider 中显示它

include ('conn.php');

$select_path="select * from image_table";

$var=mysqli_query($conn,$select_path);

while($row=mysqli_fetch_array($var))
{
 $image_name=$row["name"];
 $image_path=$row["path"];
 $url=$image_path.$image_name;
}



echo' <div id="ninja-slider">
    <div class="slider-inner">
        <ul>';
            for($i=0;$i < $url;$i++){
               echo'<li>';
               echo'  <a class="ns-img" href="'.$url[$i].'"></a>
                <div class="caption">image 1</div>
               </li>';}

        </ul>
        <div class="fs-icon" title="Expand/Close"></div>
    </div>
</div>

for循环可以显示数据库中的列表吗？

Answer 1

不必要的多次循环并不是一个好习惯。我们应该避免程序中出现不必要的循环。

    include ('conn.php');

    $select_path="select * from image_table";

    $var=mysqli_query($conn,$select_path);
if(mysql_num_rows($var) > 0){
 echo' <div id="ninja-slider"><div class="slider-inner"><ul>';
    while($row=mysqli_fetch_array($var))
    {
     $image_name=$row["name"];
     $image_path=$row["path"];
     $url=$image_path.$image_name;
     echo '<li>';
     echo '<a class="ns-img" href="'.$url.'"><img src="'.$url.'" /></a>';
     echo '<div class="caption">image 1</div></li>';
    }

echo '</ul><div class="fs-icon" title="Expand/Close"></div></div></div>';
}