php数组写到表格中，表格乱了

Question

有一个数组
$row=array("username"=>"admin" "mail"=>"[e-mail]" "id"=>"1")
我想输出出来

echo "<table width='50%' border='1' cellspacing='0' cellpadding='5' bgcolor='#cccccc' align='center'>";
echo "<tr>";
echo "<td>".$row['id']."</td>";
echo "<td>".$row['username']."</td>";
echo "<td>".$row['id']."</td>";
echo "</tr>";
echo "</table>";

为什么表格乱了？每个表格的列宽都会变

Answer 1

你该不会是每行都创建了一个新的table吧

Answer 2

那就把表的样式固定呗

Answer 3

foreach循环应该在table里，不是在外面

Answer 4

看一下你贴的图，行分割线比较粗，列分割线比较细，多半是每行都是一个table

Answer 5

应该遍历tr td

Answer 6

首先楼主你的数组的写的就不对，应该是$row=array("username"=>"admin","mail"=>"[e-mail]","id"=>"1");
如果你的数组是一维数组的话，是这样的

echo "<table width='50%' border='1' cellspacing='0' cellpadding='5' bgcolor='#cccccc' align='center'>";
echo "<tr>";
echo "<td>".$row['id']."</td>";
echo "<td>".$row['username']."</td>";
echo "<td>".$row['id']."</td>";
echo "</tr>";
echo "</table>";

如果数组是二维数组的话，你应该是foreach循环放错了
例如：

$row=array(
    array("username"=>"admin","mail"=>"[e-mail]","id"=>"1"),
    array("username"=>"uer1","mail"=>"[e-mail]","id"=>"2"),
    array("username"=>"uer2","mail"=>"[e-mail]","id"=>"3")
    );
    
echo "<table width='50%' border='1' cellspacing='0' cellpadding='5' bgcolor='#cccccc' align='center'>";
foreach ($row as $key => $value) {
    echo "<tr>";
    echo "<td>".$value['id']"</td>";
    echo "<td>".$value['username']."</td>";
    echo "<td>".$value['id']."</td>";
    echo "</tr>";
}
echo "</table>";

样式：