Question

我想在Wordpress中连接到外部数据库以获取自定义脚本。但是当我运行脚本时它会在

之后停止

连接很好，它由插件Ari Adminer测试。这个插件还可以解决表和字段的缺失问题。

Wordpressversion = 4.9.4

这是脚本的一部分：

<?php
$mydb = new wpdb('user','password','database','localhost');
$urlfoto = $url.'images/logos/';
?>
    <div class="klanten_gallery">
        <div class="container">
            <div class="klanten_gallery_inn">
                <div class="klanten_gallery_header">
                Onze klanten
                <h2><?php the_title(); ?></h2>
                    <div class="border_photo_klanten"></div>
                </div>
                <div class="klanten_gallery_text">
                    <?php
                        if ( have_posts() ) : while ( have_posts() ) : the_post(); 
                            the_content(); 
                        endwhile; endif;
                    ?>
                </div>
                <div class="gal">
                <?php   
    $qry ='
        SELECT kl_logos.id, kl_logos.klnr, kl_logos.image, kl_overzicht.kl_overzicht_naam
        FROM kl_logos
        INNER JOIN kl_overzicht
        ON kl_logos.klnr = kl_overzicht.kl_overzicht_klnr
        ORDER BY RAND()
        LIMIT 18';
    if(!$result = $mydb ->query($qry)) {
        echo ' Error in query: '. $mydb->error; 
    }else while($list = $result->fetch_assoc()){
        echo'
                <a class="fancy6" href="#" title="'.$list['kl_overzicht_naam'].'">
                    <div class="klanten_image">
                    <img src="'.$urlfoto.$list['image'].'" alt="'.$list['kl_overzicht_naam'].'"/>
                    </div>
                </a>';
                }       
    ?>      
                 </div> 
            </div>
        </div>
    </div>

Answer 1

我找到了答案。

WP不支持$ list = $ result-＆gt; fetch_assoc（）所以我用foreach替换它（$ results as $ list）

结果是下一个脚本，我希望这可以帮助其他用户。

<?php   
$qry ='
SELECT kl_logos.id, kl_logos.klnr,  kl_logos.image, kl_overzicht.kl_overzicht_naam
FROM kl_logos
INNER JOIN kl_overzicht
ON kl_logos.klnr = kl_overzicht.kl_overzicht_klnr
ORDER BY RAND()
LIMIT 18';
if(!$results = $mydb ->prepare($qry)) {
echo ' Error in query: '. $mydb->error; 
}else{
$results = $mydb->get_results($qry, 'ARRAY_A');
foreach ($results as $list) {
echo'                   
<a class="fancy6" href="#" title="'.$list['kl_overzicht_naam'].'">
    <div class="klanten_image">
    <img src="'.$urlfoto.$list['image'].'" alt="'.$list['kl_overzicht_naam'].'"/>   
    </div>
</a>';
}   
}           
?>

Answer 2

您好，将此代码添加到function.php中，在需要使其全局化的地方使用它

function connect_another_db() {
  global $seconddb;
  define('HOST', "localhost");
  define('USER', "root");
  define('PASS', "");
  define('DATABASE', "wpshop_node_for_post");
 
    $seconddb = new wpdb(USER, PASS, DATABASE, HOST);
}
add_action('init', 'connect_another_db');

在wordpress中连接到第二个数据库

2 个答案: