Question

我想将我的sql数据库中的所有行输出到表中，但我只能输出1行。到目前为止，这是我的代码：

<?php

$users = mysqli_query($database, "SELECT * FROM people");
if (mysqli_num_rows($users) == 0) {

echo ('No matches in the database');

}

while ($row = mysqli_fetch_array($users)){
    $name = $row['name'];
    $postcode = $row['postcode'];
    $email = $row ['email'];
}
?>

<table>
<tr><td>Name:</td></tr>
<tr><td><?php echo ($name) ?></td></tr>

<tr><td>postcode:</td></tr>
<tr><td><?php echo ($postcode) ?></td></tr>

<tr><td>email:</td></tr>
<tr><td><?php echo ($email) ?></td></tr>
</table>

这只输出一个，如何输出所有行？

Answer 1

你需要将表放在一个循环中，如下所示：

def indices_of_list_element_duplicates(x):
    seen = set()
    for index, element in enumerate(x):
        if isinstance(element, list):
            element = tuple(element)
        if element not in seen:
            seen.add(element)
        else:
            yield index

def list_element_duplicates(x):
    indices = list(indices_of_list_element_duplicates(x))
    return [x[index] for index in indices]

a = [[1, 2], [1, 2], [2, 2], [3, 2], [4, 2], [5, 2], [5, 2]]

print(list_element_duplicates(a))

print("--------------------------------------------------------------------------------")

b = [[10], [15], [20], [10, 10], [10, 15], [10, 20], [15, 10], [15, 15], [15, 20], [20, 10], [20, 15], [20, 20], [10, 10, 10], [10, 10, 15], [10, 10, 20], [10, 15, 10], [10, 15, 15], [10, 15, 20], [10, 20, 10], [10, 20, 15], [10, 20, 20], [15, 10, 10], [15, 10, 15], [15, 10, 20], [15, 15, 10], [15, 15, 15], [15, 15, 20], [15, 20, 10], [15, 20, 15], [15, 20, 20], [20, 10, 10], [20, 10, 15], [20, 10, 20], [20, 15, 10], [20, 15, 15], [20, 15, 20], [20, 20, 10], [20, 20, 15], [20, 20, 20], [10], [15], [20], [10, 10], [10, 15], [10, 20], [15, 10], [15, 15], [15, 20], [20, 10], [20, 15], [20, 20], [10, 10, 10], [10, 10, 15], [10, 10, 20], [10, 15, 10], [10, 15, 15], [10, 15, 20], [10, 20, 10], [10, 20, 15], [10, 20, 20], [15, 10, 10], [15, 10, 15], [15, 10, 20], [15, 15, 10], [15, 15, 15], [15, 15, 20], [15, 20, 10], [15, 20, 15], [15, 20, 20], [20, 10, 10], [20, 10, 15], [20, 10, 20], [20, 15, 10], [20, 15, 15], [20, 15, 20], [20, 20, 10], [20, 20, 15], [20, 20, 20], [10], [15], [20], [10, 10], [10, 15], [10, 20], [15, 10], [15, 15], [15, 20], [20, 10], [20, 15], [20, 20], [10, 10, 10], [10, 10, 15], [10, 10, 20], [10, 15, 10], [10, 15, 15], [10, 15, 20], [10, 20, 10], [10, 20, 15], [10, 20, 20], [15, 10, 10], [15, 10, 15], [15, 10, 20], [15, 15, 10], [15, 15, 15], [15, 15, 20], [15, 20, 10], [15, 20, 15], [15, 20, 20], [20, 10, 10], [20, 10, 15], [20, 10, 20], [20, 15, 10], [20, 15, 15], [20, 15, 20], [20, 20, 10], [20, 20, 15], [20, 20, 20], [10], [15], [20], [10, 10], [10, 15], [10, 20], [15, 10], [15, 15], [15, 20], [20, 10], [20, 15], [20, 20], [10, 10, 10], [10, 10, 15], [10, 10, 20], [10, 15, 10], [10, 15, 15], [10, 15, 20], [10, 20, 10], [10, 20, 15], [10, 20, 20], [15, 10, 10], [15, 10, 15], [15, 10, 20], [15, 15, 10], [15, 15, 15], [15, 15, 20], [15, 20, 10], [15, 20, 15], [15, 20, 20], [20, 10, 10], [20, 10, 15], [20, 10, 20], [20, 15, 10], [20, 15, 15], [20, 15, 20], [20, 20, 10], [20, 20, 15], [20, 20, 20]]

print(list_element_duplicates(b))

从此处删除'}'

<?php

$users = mysqli_query($database, "SELECT * FROM people");
if (mysqli_num_rows($users) == 0) {

echo ('No matches in the database');

}

while ($row = mysqli_fetch_array($users)){
    $name = $row['name'];
    $postcode = $row['postcode'];
    $email = $row ['email'];

然后在表格后面添加它以创建循环

我如何输出数据库中的所有行？

1 个答案: