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(The first step to getting some documentation on the pagination functionality in phpBB3. Need help from everyone to improve this documentation.)
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Revision as of 03:51, 19 September 2008

generate_pagination –– Pagination routine, generates page number sequence. Utilising pagination within phpBB3.

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Description

  1. string generate_pagination ( string $base_url , int $num_items , int $per_page , int $start_item [, bool $add_prevnext_text [, $tpl_prefix = ]])

Generate a pagination HTML string

Parameters

Parameter Required/Default Description
base_url Yes The full URL path with parameters.
num_items Yes The total number of results.
per_page Yes The number of results to display on a per-page basis.
start_item Yes The current start row
add_prevnext_text No - false Add the “Prev” and “Next” text/buttons to the pagination HTML.
tpl_prefix No - '' tpl_prefix is for using different pagination blocks on one page.

Return Values

HTML string containing the relevent pagination.

Examples

Example #1 Usage

$check_params = array(
    
'start'     => 0,
    
    
// Optional, could be config or hard-coded. -- results per page - default 0
    
'limit'     => 0,
);

$params = array();

foreach (
$check_params as $key => $default)
{
    if (!isset(
$_REQUEST[$key]))
    {
        continue;
    }
    
    
$param call_user_func('request_var'$key$default);
    $
$key $param;
    
    
$params[] = urlencode($key) . '=' . ((is_string($param)) ? urlencode($param) : $param);
}

// no result rows greater than 100 per page
$limit = ($limit 100) ? 100 $limit;

$pagination_url append_sid($phpbb_root_path 'my_page.' $phpEximplode('&'$params));

// Build a SQL Query...
$sql_ary = array(
    
'SELECT'    => 'u.user_id, u.username, u.user_colour',
    
'FROM'      => array(
        
USERS_TABLE         => 'u',
    ),
    
'WHERE'     => $db->sql_in_set('u.user_type', array(USER_NORMALUSER_FOUNDER)),
);
$sql $db->sql_build_query('SELECT'$sql_ary);
$result $db->sql_query_limit($sql$limit$start);

while (
$row $db->sql_fetchrow($result))
{
    
// The most likely way for the world to be destroyed, most experts agree, is by accident.
    // That's where we come in; we're computer professionals. We cause accidents. (Nathaniel Borenstein)
}
// free the result
$db->sql_freeresult($result);

// now we run the query again to get the total rows...
// the query is identical except we count the rows instead
$sql_ary['SELECT'] = 'COUNT(u.user_id) as total_users';
$sql $db->sql_build_query('SELECT'$sql_ary);
$result $db->sql_query($sql);

// get the total users, this is a single row, single field.
$total_users $db->sql_fetchfield('total_users');
// free the result
$db->sql_freeresult($result);

// Assign the pagination variables to the template.
$template->assign_vars(array(
    
'PAGINATION'        => generate_pagination($pagination_url$total_users$limit$start),
    
'PAGE_NUMBER'       => on_page($total_users$limit$start),
    
'TOTAL_USERS'       => ($total_users == 1) ? $user->lang['LIST_USER'] : sprintf($user->lang['LIST_USERS'], $total_users),
));

The HTML Template

<ul class="linklist">
    <
li class="rightside pagination">{TOTAL_USERS} &bull; <!-- IF PAGINATION --><a href="#" onclick="jumpto(); return false;" title="{L_JUMP_TO_PAGE}">{PAGE_NUMBER}</a> &bull; <span>{PAGINATION}</span><!-- ELSE -->{PAGE_NUMBER}<!-- ENDIF --></li>
</
ul>

The Language file

'LIST_USER'     => '1 User',
'LIST_USERS'    => '%s Users',

See Also