Foreach内部的For循环 [英] For loop inside Foreach

问题描述

我有一个foreach，它为每个用户遍历数据库.

I got a foreach which loops through my database for each user.

    <?php
        foreach($users as $user) {
    ?>
        <tr>
            <td>
                <?php
                for ($i=1; $i < 52; $i++) {
                    echo $i;
                }
                ?>
            </td>
            <td>
                <?php echo $user['firstname']; ?>
            </td>
         </tr>
<?php
}
?>

此循环遍历数据库并回显用户名，现在我尝试在其中建立一个for循环，以便每个用户都有一个数字，我以一个非常基本的for循环为例(稍后将对其进行更改). 问题是我为每个用户打印了所有号码，但是我只想为一个用户打印一次号码.我该怎么解决.

This loop through database and echos the username, now I tried to build a for loop inside this so that every user has a number, I took as an example a very basic for loop ( it will be changed later). The problem is that I get all numbers printed out for each user, but I just want to print out the number once for a user. How do I solve this.

推荐答案

如果要为用户提供唯一的索引号，则不需要多余的循环.

If you want unique index number for user, you do not need extra loop.

只需添加一个增量变量:

Just add an increment variable:

并在现有循环中将其递增.

And increment it in existing loop.

<?php
$i=0;
foreach($users as $user) {
  ++$i; // For printing first user, it will be 1 not 0. 
  // Therefore, increment is placed before printing name.
?>
  <tr>
    <td><?php echo $i;?></td>
    <td><?php echo $user['firstname']; ?></td>
  </tr>
<?php
}
?>

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