wpdb - get_results not returning anything

admin管理员组

文章数量:1336331

What is the basic way to use $wpdb and get_results?

This is my code:

global $wpdb;
$q="SELECT * FROM wp_usermeta WHERE meta_key = 'nickname' AND user_id = 771";
$result = $wpdb->get_results($q);
echo $result;

The query string is good because I can run it in phpmyadmin and it works fine. I am not getting anything back when run through page.

What is the basic way to use $wpdb and get_results?

This is my code:

global $wpdb;
$q="SELECT * FROM wp_usermeta WHERE meta_key = 'nickname' AND user_id = 771";
$result = $wpdb->get_results($q);
echo $result;

The query string is good because I can run it in phpmyadmin and it works fine. I am not getting anything back when run through page.

• wpdb
• user-meta

Share Improve this question asked May 24, 2020 at 13:31 Johnnyboy GomezJohnnyboy Gomez 3333 bronze badges

Add a comment  | 

1 Answer 1

Sorted by: Reset to default 3

$wpdb->get_results() returns an array on success, so you can't simply echo $result;.

Instead, you can use foreach to loop through the results and display whatever the data that you want to display:

$results = $wpdb->get_results( $q );
foreach ( $results as $row ) {
    echo $row->meta_value . '<br />';
}

But I can see that you're trying to select just one row, so you'd want to use $wpdb->get_row() and not $wpdb->get_results():

$row = $wpdb->get_row( $q );
if ( $row ) {
    echo $row->meta_value;
}

But then again — because wp_usermeta is the default table for WordPress users' meta, if you just want to retrieve the meta value, then there's a function you can (and should better) use — get_user_meta():

echo get_user_meta( 771, 'nickname', true );

本文标签： wpdbgetresults not returning anything