Php 在循环中每3列之后创建新行

所以我想做的是，在php中使用bootstrap column with foreach循环在每3列打印之后创建一个新行。这是我的代码

<div class = "row">
<?php   foreach($location_list as $location) 
     {

  echo "<div class ='col-md-4'>
          <hr> $location->address </hr>
           <hr> $location->name </hr>
           <hr> $location->pin </hr>
       </div> ";
}

  ?>
</div>

在特定条件下，要打印的
行
代码应位于
foreach
循环内。打印行的条件应为：

<?php
foreach ($location_list as $key => $location) {
    if ($key % 3 == 0) {
        echo '<div class = "row">';
    }

    echo "<div class ='col-md-4'>
          <hr> $location->address </hr>
           <hr> $location->name </hr>
           <hr> $location->pin </hr>
       </div> ";

    if ($key % 3 == 2) {
        echo '</div>';
    }
}
?>

要打印的代码
行
应在特定条件下位于
foreach
循环内。打印行的条件应为：

<?php
foreach ($location_list as $key => $location) {
    if ($key % 3 == 0) {
        echo '<div class = "row">';
    }

    echo "<div class ='col-md-4'>
          <hr> $location->address </hr>
           <hr> $location->name </hr>
           <hr> $location->pin </hr>
       </div> ";

    if ($key % 3 == 2) {
        echo '</div>';
    }
}
?>


将带类行的div放入foreach将带类行的div放入foreach