php - php 和 tcpdf 中 5 td 后的新 tr

Question

在使用 TCPDF 制作 PDF 时，我<tr>每 5次获取一个新的有一点问题：<td>

$bricks = "";
$bricks .= '<table>';
$bricks .= '<tr>';

foreach($bricks_selected as $key => $value) {
    $num_check = substr($value, 4);

    if($num_check != "0") {                
        $bricks .= '<td width="90" height="80"><img src="/var/www/brickmixer/bricks/tavler/RT'.substr($value, 0, 3).'.jpg" width="80" height="55"><br><b>RT '. substr($value, 0, 3) .' - '. $num_check .'%</b></td>';       
    } 

}

我尝试过除法等，但它给了我一些有趣的结果。

该$bricks_selected变量设置在脚本的顶部：

foreach($_POST as $key => $value) {
    if($key == "bricks-selected") {
        $bricks_selected = explode("&", $value);
    }
}

Answer 1

添加一个增量变量并检查每 5 个td：

$i = 1;
foreach($bricks_selected as $key => $value) {
    $num_check = substr($value, 4);
    if($num_check != "0") {                
        $bricks .= '<td width="90" height="80"><img src="/var/www/brickmixer/bricks/tavler/RT'.substr($value, 0, 3).'.jpg" width="80" height="55"><br><b>RT '. substr($value, 0, 3) .' - '. $num_check .'%</b></td>';       
    } 
    if($i%5 == 0){
         echo '</tr><tr>';
    }
    $i++;
}

Answer 2

你尝试创建一个像 $i 这样的增量变量，并且if ($i%5==0) {/* you have to close </tr> and open new <tr>*/} else {/* you do other thing*/}