在循环时在数据库之间添加信息

Question

请在循环结果中显示查询数据库之间的一些信息：

<?php

    $query = mysqli_query($con, "SELECT * FROM table");
    while($sql = mysqli_fetch_array($query)){
        $id = $sql['id'];
        $country = $sql['country'];

        echo $id.". ".$country."<br>";

    }

?>

如果结果是：

1. MALAYSIA
2. GERMANY
3. EGYPT
4. CAMEROUN
5. ITALY
6. RUSSIA
7. ENGLAND
8. ETHIOPIA
9. AUSTRIA
10. JAPAN

我想在结果之间添加一些内容：

1. MALAYSIA
2. GERMANY
3. EGYPT
this is an advert div(1)
4. CAMEROUN
5. ITALY
this is an advert div(2)
6. RUSSIA
7. ENGLAND
8. ETHIOPIA
9. AUSTRIA
this is an advert div(3)
10. JAPAN

请问有可能吗？

Answer 1

试试这个：

<?php

$count = 1;
$advertCount = 1;
$advertArr = [3, 5, 9];
$query = mysqli_query($con, "SELECT * FROM table");
while($sql = mysqli_fetch_array($query)){
    $id = $sql['id'];
    $country = $sql['country'];

    echo $id.". ".$country."<br>";

    if (in_array($count, $advertArr)) {
        echo "this is an advert div($advertCount++)";
    }

    $count++;
}

?>

虽然我没有测试过上述解决方案，但我认为这会对你有帮助。

Answer 2

它会在每第三行插入广告。

$count    = 0;
$ad_count = 1;

$query = mysqli_query($con, "SELECT * FROM table");
while($sql = mysqli_fetch_array($query)){
    $id = $sql['id'];
    $country = $sql['country'];

    echo $id.'. '.$country.'<br>';
    $count++;

    if ($count%3==0)
    {
    echo 'this is an advert div('.$ad_count.')<br>';
    $ad_count++;
    }
}