I'm trying to retrieve information on my database. I wanted to display all pages using this statement, but I'm getting a blank ARRAY

global $wpdb;
$result = $wpdb->get_results (
        "
        SELECT * 
        FROM  $wpdb->wp_posts 
        WHERE post_type =  'page'
        "
        );

echo $result; // display data

Output:

  ARRAY

EDIT: After changing below suggestions, I'm now using this. but I still don't get any results:

global $wpdb;

    $posts = $wpdb->wp_posts;
    $result = $wpdb->get_results( " SELECT * FROM  $posts WHERE 'post_type' =  'page' "  );

    foreach ($result as $page) {
            echo $page->ID.'<br/>';

    }

I'm trying to retrieve information on my database. I wanted to display all pages using this statement, but I'm getting a blank ARRAY

global $wpdb;
$result = $wpdb->get_results (
        "
        SELECT * 
        FROM  $wpdb->wp_posts 
        WHERE post_type =  'page'
        "
        );

echo $result; // display data

Output:

  ARRAY

EDIT: After changing below suggestions, I'm now using this. but I still don't get any results:

global $wpdb;

    $posts = $wpdb->wp_posts;
    $result = $wpdb->get_results( " SELECT * FROM  $posts WHERE 'post_type' =  'page' "  );

    foreach ($result as $page) {
            echo $page->ID.'<br/>';

    }

• database
• query
• wpdb

• Try wrapping $wpdb->wp_posts with curly braces, ie. {$wpdb->wp_posts}.. – t31os Commented Aug 19, 2013 at 13:40

4 Answers 4

global $wpdb;

$result = $wpdb->get_results ( "
    SELECT * 
    FROM  $wpdb->posts
        WHERE post_type = 'page'
" );

foreach ( $result as $page )
{
   echo $page->ID.'<br/>';
   echo $page->post_title.'<br/>';
}

You have a slight misunderstanding:

When calling $wpdb, you get a list of properties that contain the core names of the tables:

// The custom prefix from wp-config.php
// only needed for custom tables
$wpdb->prefix

// Tables where you don't need a prefix: built in ones:
$wpdb->posts
$wpdb->postmeta
$wpdb->users

So your final query would look like this:

$wpdb->get_results( "SELECT * FROM {$wpdb->posts} WHERE post_type = 'page'" );

Try the following code. I faced the similar problem and solved it by removing $wpdb from 'FROM' field.

global $wpdb;
$result = $wpdb->get_results (
            "
            SELECT * 
            FROM  wp_posts 
            WHERE post_type =  'page'
            "
            );

echo $result; // display data

By "blank Array" do you mean an 'empty array' or is the output 'ARRAY'. If it's the latter then, it is the expected output. You need to loop through that array and display results accordingly.

Reference: http://codex.wordpress/Class_Reference/wpdb#SELECT_Generic_Results