php - 修复尝试从数据库检索数据时 php 中的显示格式

Question

我使用 PHP 和 MYSQL 数据库来检索我使用以下查询的一些数据:

$result2 = $wpdb->get_results('select siteID, siteNAME, equipmentTYPE from `site_info`  where ownerID = 159');
foreach($result2 as $result) {
    print_r ($result);
    echo "<br/>";

但此查询返回以下格式:

stdClass Object ( [siteID] => BAH004 [siteNAME] =>XXXXXXX [equipmentTYPE] => XXXXXXX ) 

我希望格式如下:BAH004，XXXXXXX，XXXXXXX

谁能帮我解决这个问题吗？

Answer 1

根据wpdb::get_results ，您可以使用 ARRAY_N

wpdb::get_results( string $query = null, string $output = OBJECT )
$output

(string) (Optional) Any of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. With one of the first three, return an array of rows indexed from 0 by SQL result row number. Each row is an associative array (column => value, ...), a numerically indexed array (0 => value, ...), or an object. ( ->column = value ), respectively. With OBJECT_K, return an associative array of row objects keyed by the value of each row's first column's value. Duplicate keys are discarded.

Default value: OBJECT

所以，使用

$result2 = $wpdb->get_results('select siteID, siteNAME, equipmentTYPE from `site_info`  where ownerID = 159', ARRAY_N);

应该可以解决问题。

<小时/>

要获得所需的输出格式，不得使用 print_r ，因为 print_r 输出具有固定格式。而是自己做输出，例如

foreach($result2 as $result) {
    echo join(', ', $result), '<br/>';
}