显示阵列作为一个表（PHP） [英] Display Array as a Table (PHP)

问题描述

我想打印使用PHP / HTML表。存储阵列内的数据是这样的：

I am trying to print a table using PHP/HTML. Data stored inside array like this:

Array ( [id] => 1 [first_name] => mike [last_name] => lastname )

我的code是如下。它运行且没有错误但并不如预期的输出。下面是PHP / HTML code：

My code is as follow. It runs and there are no error however the output is not as expected. Here is the PHP/HTML code:

<table>

<tr>
    <th>1</th>
    <th>2</th>
    <th>3</th>
</tr>

<?php foreach ($res as $item): ?>
<tr>
     <td><?php echo $item['id'] ?></td>
     <td><?php echo $item['first_name'] ?></td>
     <td><?php echo $item['last_name'] ?></td>
</tr>
<?php endforeach; ?>

</table>

结果我得到的是项目的第一个字符：

The result I get is the first character of the items:

1       2      3
1       1      1
m       m      m
l       l      l

不知道我做错了吗？我真的AP preciate的解释。

Not sure what I am doing wrong? I would really appreciate an explanation.

更新：

PHP code有没有错误：

PHP CODE that has no errors:

<?php 
    foreach ($result as $row) 
    { 
        echo '<tr>';
        echo '<td>' . $row['id'] . '</td>';
        echo '<td>' . $row['first_name'] . '</td>';
        echo '<td>' . $row['last_name'] . '</td>';
        echo '</tr>';
    }
?>

这是我的数组在它只有一个行：

And this is my array with only one "row" in it:

$的输出结果变量使用的print_r（$结果）裹以＆lt; pre>标签

Output of $result variable using print_r($result) wrapped with < PRE > tags

Array
(
    [id] => 3
    [first_name] => Jim
    [last_name] => Dude
)

下面是我得到的结果：

实际的表结果是：

ID    First Name  Last Name
3     3           3
J     J           J
D     D           D

但是，如果我在阵列有0或1名以上（即2个或更多），它完美的作品。它只是不工作时，我只有一个行元素中数组。例如这个数组，完美的作品：

However if I have 0 in array or more than 1 (meaning 2 or more) it works perfectly. IT JUST DOES NOT WORK WHEN I HAVE ONLY ONE "ROW" OF ELEMENTS INSIDE ARRAY. For example this array, works perfectly:

  Array
    (
    [0] => Array
        (
            [id] => 3
            [first_name] => Jim
            [last_name] => Dude
        )

    [1] => Array
        (
            [id] => 4
            [first_name] => John
            [last_name] => Dude2
        )
    )

我得到这样的结果：

I get this result:

ID      First Name    Last Name
3       Jim         Dude
4       John            Dude2

我真的不知道我在做什么错。这个想法是不知道有多少项目是在表中读入$ result变量，然后使用这个变量打印HTML表格中的所有元素。表可以包含O单元，1行元素，元素的1个或多个行。

I am not really sure what I am doing wrong. The idea is not knowing how many items is in a Table read it into $result variable and then using this variable print all elements inside HTML table. Table could contain O elements, 1 row of elements, 1 or more rows of elements.

推荐答案

不要删除您的foreach循环。没有看到你的code其中你建立你的阵列，我的猜测是，你这样做是：

Do not remove your foreach loop. Without seeing your code where you build your array, my guess would be you are doing this:

$res = array('id' => 1, 'first_name'=>'mike', 'last_name'=>'lastname');

的时候，其实你可能想要做什么是这样的：

when in fact what you probably want to be doing is this:

$res[] = array('id' => 1, 'first_name'=>'mike', 'last_name'=>'lastname');

括号[]添加的所有值的数组阵列。这样，您就可以通过为每一个值的集合，而不是单个值循环。

the brackets [ ] add an array of all the values to your array. This way you can loop through each as a collection of values, not individual values.

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