public function get_users_by_role($role = 'all')
	{
		global $wpdb;
		$query = $wpdb -> prepare("SELECT {$wpdb -> users}.ID as `id`, {$wpdb -> usermeta}.meta_value as `capabilities` FROM {$wpdb -> users} JOIN {$wpdb -> usermeta} ON {$wpdb -> users}.ID = {$wpdb -> usermeta}.user_id WHERE {$wpdb -> usermeta}.meta_key = 'wp_capabilities'");
		$userdata = $wpdb -> get_results($query);
		$users = Array();
		foreach($userdata as $data)
		{
			$caps = unserialize($data -> capabilities);
			if($caps[$role] == true || $role == 'all')
			{
				$users[] = get_userdata($data -> id);
			}
		}
		return $users;
	}

There’s a pretty long query in there which pretty much just selects the ID from the wp_users table and the wp_capabilities value from the wp_usermeta table.

Then there’s a loop which checks that the selected user id has the wanted role, and then an array of all users with their data is returned. Pretty simple.

Use it like this:

$admins = get_users_by_role('administrator');
foreach($admins as $admin)
{
	echo $admin -> user_nicename . '<br />';
}

Outputs something like:
admin
admin2

If anyone knows of a simpler way of doing this, please let me know.

Alle

'Afghanistan', 'Albanien', 'Algeriet', 'Andorra', 'Angola', 'Antigua og  Barbuda', 'Argentina', 'Armenien', 'Australien', 'Azerbajdjan',  'Bahama-øerne', 'Bahrain', 'Bangladesh', 'Barbados', 'Belarus  (Hviderusland)', 'Belgien', 'Belize', 'Benin', 'Bhutan', 'Bolivia',  'Bosnien-Herzegovina', 'Botswana', 'Brasilien', 'Brunei', 'Bulgarien',  'Burkina Faso', 'Burma', 'Burundi', 'Cambodja', 'Cameroun', 'Canada',  'Centralafrikanske Republik', 'Chile', 'Colombia', 'Comorerne', 'Congo',  'Congo, Den Demokratiske Republik', 'Cook Islands', 'Costa Rica',  'Cuba', 'Cypern', 'Djibouti', 'Dominica', 'Dominikanske Republik',  'Ecuador', 'Egypten', 'Elfenbenskysten', 'El Salvador', 'Eritrea',  'Estland', 'Etiopien', 'Fiji', 'Filippinerne', 'Finland', 'Forenede  Arabiske Emirater', 'Frankrig', 'Gabon', 'Gambia', 'Georgien', 'Ghana',  'Grenada', 'Grækenland', 'Guatemala', 'Guinea', 'Guinea-Bissau',  'Guyana', 'Haiti', 'Honduras', 'Indien', 'Indonesien', 'Irak', 'Iran',  'Irland', 'Island', 'Israel', 'Italien', 'Jamaica', 'Japan', 'Jordan',  'Kapverdiske Øer', 'Kazakstan', 'Kenya', 'Kina', 'Kirgizistan',  'Kiribati', 'Demokratiske Folkerepublik Korea', 'Republikken Korea',  'Kosovo', 'Kroatien', 'Kuwait', 'Laos', 'Lesotho', 'Letland', 'Libanon',  'Liberia', 'Libyen', 'Liechtenstein', 'Litauen', 'Luxembourg',  'Madagaskar', 'Makedonien, den tidligere jugoslaviske republik (FYROM)',  'Malawi', 'Malaysia', 'Maldiverne', 'Mali', 'Malta', 'Marokko',  'Marshall-øerne', 'Mauretanien', 'Mauritius', 'Mexico', 'Mikronesien',  'Moldova', 'Monaco', 'Mongoliet', 'Montenegro', 'Mozambique', 'Namibia',  'Nauru', 'Nederlandene', 'Nepal', 'New Zealand', 'Nicaragua', 'Niger',  'Nigeria', 'Norge', 'Oman', 'Pakistan', 'Palau', 'Panama', 'Papua New  Guinea', 'Paraguay', 'Peru', 'Polen', 'Portugal', 'Qatar', 'Rumænien',  'Rusland', 'Rwanda', 'Samoa', 'San Marino', 'Sao Tomé og Principe',  'Saudi Arabien', 'Schweiz', 'Senegal', 'Serbien', 'Seychellerne',  'Sierra Leone', 'Singapore', 'Slovakiske Republik, Den', 'Slovenien',  'Solomon-øerne', 'Somalia', 'Spanien', 'Sri Lanka', 'St. Kitts og  Nevis', 'St. Lucia', 'St. Vincent og Grenadinerne', 'Storbritannien og  Nordirland', 'Sudan', 'Surinam', 'Sverige', 'Swaziland', 'Sydafrika',  'Syrien', 'Tadjikistan', 'Tanzania', 'Tchad', 'Thailand', 'Den Tjekkiske  Republik', 'Togo', 'Tonga', 'Trinidad og Tobago', 'Tunesien',  'Turkmenistan', 'Tuvalu', 'Tyrkiet', 'Tyskland', 'Uganda', 'Ukraine',  'Ungarn', 'Uruguay', 'USA (Amerikas Forenede Stater)', 'Uzbekistan',  'Vanuatu', 'Vatikanstaten', 'Venezuela', 'Vietnam', 'Yemen', 'Zambia',  'Zimbabwe', 'Ækvatorial Guinea', 'Østrig', 'Østtimor (Timor Leste)

A

'Afghanistan ', 'Albanien ', 'Algeriet ', 'Andorra ', 'Angola ', 'Antigua og Barbuda ', 'Argentina ', 'Armenien ', 'Australien ', 'Azerbajdjan '

B

'Bahama-øerne ', 'Bahrain ', 'Bangladesh ', 'Barbados ', 'Belarus (Hviderusland) ', 'Belgien ', 'Belize ', 'Benin ', 'Bhutan ', 'Bolivia ', 'Bosnien-Herzegovina ', 'Botswana ', 'Brasilien ', 'Brunei ', 'Bulgarien ', 'Burkina Faso ', 'Burma ', 'Burundi '

C

'Cambodja ', 'Cameroun ', 'Canada ', 'Centralafrikanske Republik ', 'Chile ', 'Colombia ', 'Comorerne ', 'Congo ', 'Congo, Den Demokratiske Republik  ', 'Cook Islands ', 'Costa Rica ', 'Cuba ', 'Cypern '

D

'Djibouti ', 'Dominica ', 'Dominikanske Republik '

E

'Ecuador ', 'Egypten ', 'Elfenbenskysten ', 'El Salvador ', 'Eritrea ', 'Estland ', 'Etiopien '

F

'Fiji ', 'Filippinerne ', 'Finland ', 'Forenede Arabiske Emirater ', 'Frankrig '

G

'Gabon ', 'Gambia ', 'Georgien ', 'Ghana ', 'Grenada ', 'Grækenland ', 'Guatemala ', 'Guinea ', 'Guinea-Bissau ', 'Guyana '

H

'Haiti ', 'Honduras '

I

'Indien ', 'Indonesien ', 'Irak ', 'Iran ', 'Irland ', 'Island ', 'Israel ', 'Italien '

J

'Jamaica ', 'Japan ', 'Jordan '

K

'Kapverdiske Øer ', 'Kazakstan ', 'Kenya ', 'Kina ', 'Kirgizistan ', 'Kiribati ', 'Demokratiske Folkerepublik Korea ', 'Republikken Korea ', 'Kosovo ', 'Kroatien ', 'Kuwait '

L

'Laos ', 'Lesotho ', 'Letland ', 'Libanon ', 'Liberia ', 'Libyen ', 'Liechtenstein ', 'Litauen ', 'Luxembourg '

M

'Madagaskar ', 'Makedonien, den tidligere jugoslaviske republik (FYROM) ', 'Malawi ', 'Malaysia ', 'Maldiverne ', 'Mali ', 'Malta ', 'Marokko ', 'Marshall-øerne ', 'Mauretanien ', 'Mauritius ', 'Mexico ', 'Mikronesien ', 'Moldova ', 'Monaco ', 'Mongoliet ', 'Montenegro ', 'Mozambique '

N

'Namibia ', 'Nauru ', 'Nederlandene ', 'Nepal ', 'New Zealand ', 'Nicaragua ', 'Niger ', 'Nigeria ', 'Norge '

O

'Oman '

P

'Pakistan ', 'Palau ', 'Panama ', 'Papua New Guinea ', 'Paraguay ', 'Peru ', 'Polen ', 'Portugal '

Q

'Qatar '

R

'Rumænien ', 'Rusland ', 'Rwanda '

S

'Samoa ', 'San Marino ', 'Sao Tomé og Principe ', 'Saudi Arabien ', 'Schweiz ', 'Senegal ', 'Serbien ', 'Seychellerne ', 'Sierra Leone ', 'Singapore ', 'Slovakiske Republik, Den ', 'Slovenien ', 'Solomon-øerne ', 'Somalia ', 'Spanien ', 'Sri Lanka ', 'St. Kitts og Nevis ', 'St. Lucia ', 'St. Vincent og Grenadinerne ', 'Storbritannien og Nordirland ', 'Sudan ', 'Surinam ', 'Sverige ', 'Swaziland ', 'Sydafrika ', 'Syrien '

T

'Tadjikistan ', 'Tanzania ', 'Tchad ', 'Thailand ', 'Den Tjekkiske Republik ', 'Togo ', 'Tonga ', 'Trinidad og Tobago ', 'Tunesien ', 'Turkmenistan ', 'Tuvalu ', 'Tyrkiet ', 'Tyskland '

U

'Uganda ', 'Ukraine ', 'Ungarn ', 'Uruguay  ', 'USA (Amerikas Forenede Stater) ', 'Uzbekistan '

V

'Vanuatu ', 'Vatikanstaten ', 'Venezuela ', 'Vietnam '

Y

'Yemen '

Z

'Zambia ', 'Zimbabwe '

Æ

'Ækvatorial Guinea '

Ø

'Østrig ', 'Østtimor (Timor Leste)'

googleTranslator

$_SERVER['HTTP_USER_AGENT']

Facebook sends a special “facebook” useragent when crawling the site.

So to catch facebook, and show special stuff you could do

if(preg_match('/facebook/', $_SERVER['HTTP_USER_AGENT'])
{
    //show stuff to facebook
}

There didn’t seem to be any solution to this at all, so I had to hack one out myself. What I quickly came up with was to comment out the wordpress function the_editor in Mailpress, and replace it with HTML.

Edit file: mailpress/mp-admin/includes/write.php, and find the following function call (around line 220-225):

the_editor((isset($draft->html)) ? $draft->html : '', 'content', 'title', apply_filters('MailPress_upload_media', false), 5);

And replace it with this:

<div id='editorcontainer'>
<textarea class="theEditor" name="content" style="color:#000;width:760px;height:200px;"><?php echo $draft->html; ?></textarea>
</div>

It’s extremely ugly, and the wysiwyg editor will not work, but hey.. It’s sending proper newsletters at least, and if you know enough to change this, you’ll probably know enough HTML to add your own markup to the newsletter.

I might create a prettier solution when I get more time, and/or need the function again.

While the latest blog posts and tweets were easy enough to set up, I had a few kinks figuring out how to get the data from Facebook, without requiring a session key (i.e. without logging in to Facebook).

This took a while to dig out, and I tried around 5 different approaches before figuring out that it was pretty simple actually. The Facebook API documentation is just terrible…

include('facebook-platform/php/facebook.php');

class fbPageStatus
{
 public static function getStatusUpdates($fbkey, $fbsecret, $page_id)
 {
 $fb = new Facebook($fbkey, $fbsecret);
 $fql        = "SELECT message, updated_time FROM stream WHERE source_id = '" . $page_id . "'";
 $fbupdates    = $fb -> api_client -> fql_query($fql);
 return $fbupdates;
 }
}
// Usage:
var_dump(fbPageStatus::getStatusUpdates('7bc1ef16567735546bef620c32a23s76', 'ab3dfc4b7d8591f7ef2197ba754f16d1', '17975046895'));

Some simple FQL returns the result.

To get the number of fans, you would do:

$fql         = "SELECT fan_count FROM page WHERE page_id = '" . $page_id . "'";
 $fans         = $fb -> api_client -> fql_query($fql);

Hope someone will find this usefull.

EDIT: All keys are fake, obviously. Replace with your own.