Question

我在下面编写的代码可以正常工作，但是在循环结束时，div没有关闭，仍在打开循环

<div class="carousel-inner">
    <div class="item active">
       <div class="row">
        <?php 
        $recent_projects_sql="SELECT * from recent_projects where service_type='upholstery'";   
        $recent_projects_conn=mysql_query($recent_projects_sql) or die(mysql_error()); 
        $i=0; $split=0;

        while($projects=mysql_fetch_array($recent_projects_conn)) {   
             $i++; 
             ?>
             <div class="col-sm-3">
                <div class="col-item" style="">
                    <div class="photo-shadow"></div>
                    <div class="photo">
                        <img src="admin/assets/images/uploads/projects/<?php echo $projects['attachment1']; ?>" alt="User one">
                    </div>
                    <div class="info">
                        <div class="name">
                            <?php echo $projects['service_name']; ?>
                        </div>
                        <div class="degination">
                            <?php echo $projects['sub_title']; ?>
                        </div>
                        <div class="buttons">
                            <a class="btn btn-theme ripple-effect" href="#">View More</a>
                        </div>
                        <div class="clearfix"></div>
                    </div>
                </div>
            </div>
            <?php 
            $split++;   
            if ($split % 4 == 0){  
               echo '</div></div><div class="item"><div class="row">';  
            }   
       }
       ?>
    </div>
</div>

div分割得很好，但是在循环结束时div尚未关闭。多数民众赞成在唯一的问题，请为我提供帮助以解决问题

当我检查元素时，最后一个循环将以给定的结果显示如下：

                                        <div class="col-sm-3">
                                            <div class="col-item">
                                                <div class="photo-shadow"></div>
                                                <div class="photo">
                                                    <img src="admin/assets/images/uploads/projects/1557301934.jpg" alt="User one">
                                                </div>
                                                <div class="info">
                                                    <div class="name">UPHOLSTERY</div>
                                                    <div class="degination">UPHOLSTERY</div>
                                                    <div class="buttons">
                                                        <a class="btn btn-theme ripple-effect" href="#">View More</a>
                                                    </div>
                                                    <div class="clearfix"></div>
                                                </div>
                                            </div>
                                        </div> 
                                        </div></div><div class="item"><div class="row">

我想动态删除两个开头的div。我该如何设置以在循环结束时删除打开的div

Answer 1

添加用于执行循环的布尔检查，例如$check = true;，将其添加到循环中。

在循环之后添加此

if($check){
 echo " </div></div>";
}

那是因为在迭代结束时（对于mod 4，甚至没有它），您将保持2个divs

 echo '</div></div><div class="item"><div class="row">';

Answer 2

我只是看了一眼，看来您没有关闭“轮播内部” div

<div class="carousel-inner">
<div class="item active">
    <div class="row">
        <?php
        $recent_projects_sql = "SELECT * from recent_projects where service_type='upholstery'";
        $recent_projects_conn = mysql_query( $recent_projects_sql ) or die( mysql_error() );
        $i     = 0;
        $split = 0;
        while ( $projects = mysql_fetch_array( $recent_projects_conn ) ) {
            $i ++;
            ?>
            <div class="col-sm-3">
                <div class="col-item" style="">
                    <div class="photo-shadow"></div>
                    <div class="photo">
                        <img src="admin/assets/images/uploads/projects/<?php echo $projects['attachment1']; ?>"
                             alt="User one">
                    </div>
                    <div class="info">
                        <div class="name">
                            <?php echo $projects['service_name']; ?>
                        </div>
                        <div class="degination">
                            <?php echo $projects['sub_title']; ?>
                        </div>
                        <div class="buttons">
                            <a class="btn btn-theme ripple-effect" href="#">View More</a>
                        </div>
                        <div class="clearfix"></div>
                    </div>
                </div>
            </div>
            <?php $split ++;
            if ( $split % 4 == 0 ) {
                echo '</div></div><div class="item"><div class="row">';
            }
        }
        ?>
    </div>
</div>

动态div在php while循环中关闭

2 个答案: