通过PREVIEW_TOTLE、ROW_NUMBER参数控制页面的显示【总数表示标签不足时共显示多少格子】 元素少于配置时的总数空格补位和超过时的补位

gistfile1.php

<?php
    
    define('PREVIEW_TOTLE', 15);//总数
    define('ROW_NUMBER', 3);//每行的个数，应可被TOTLE整除
    
    $total = PREVIEW_TOTLE;
    $row = ROW_NUMBER;
    $count = count($val['tag_ids']);
    $last = $total - $count;
    $j = 0;
    foreach($val['tag_ids'] as $k => $v){
        if($j % $row == 0 && $j != 0){
            echo "</tr><tr>";
        }
        $j++;
        echo "<td>$v</td>";
    }
    for($i = 0;$i < $last; $i++){
        if($j % $row == 0 && $j != 0){
            echo "<tr/><tr>";
        }
        $j++;
        echo "<td>&nbsp;</td>";
    }
    if($last < 0  && abs($last) % $row > 0){
        for($k = 0;$k < ROW_NUMBER - abs($last) % $row; $k++){
            echo "<td>&nbsp;</td>";
        }
    }
    $j = 0;
?>