library/plugins/function.counter.php

   1 <?php
   2 /**
   3  * Smarty plugin
   4  * @package Smarty
   5  * @subpackage plugins
   6  */
   7
   8
   9 /**
  10  * Smarty {counter} function plugin
  11  *
  12  * Type:     function<br>
  13  * Name:     counter<br>
  14  * Purpose:  print out a counter value
  15  * @link http://smarty.php.net/manual/en/language.function.counter.php {counter}
  16  *       (Smarty online manual)
  17  * @param array parameters
  18  * @param Smarty
  19  * @return string|null
  20  */
  21 function smarty_function_counter($params, &$smarty)
  22 {
  23     static $counters = array();
  24
  25     $name = (isset($params['name'])) ? $params['name'] : 'default';
  26     if (!isset($counters[$name])) {
  27         $counters[$name] = array(
  28             'start'=>1,
  29             'skip'=>1,
  30             'direction'=>'up',
  31             'count'=>1
  32             );
  33     }
  34     $counter =& $counters[$name];
  35
  36     if (isset($params['start'])) {
  37         $counter['start'] = $counter['count'] = (int)$params['start'];
  38     }
  39
  40     if (!empty($params['assign'])) {
  41         $counter['assign'] = $params['assign'];
  42     }
  43
  44     if (isset($counter['assign'])) {
  45         $smarty->assign($counter['assign'], $counter['count']);
  46     }
  47
  48     if (isset($params['print'])) {
  49         $print = (bool)$params['print'];
  50     } else {
  51         $print = empty($counter['assign']);
  52     }
  53
  54     if ($print) {
  55         $retval = $counter['count'];
  56     } else {
  57         $retval = null;
  58     }
  59
  60     if (isset($params['skip'])) {
  61         $counter['skip'] = $params['skip'];
  62     }
  63
  64     if (isset($params['direction'])) {
  65         $counter['direction'] = $params['direction'];
  66     }
  67
  68     if ($counter['direction'] == "down")
  69         $counter['count'] -= $counter['skip'];
  70     else
  71         $counter['count'] += $counter['skip'];
  72
  73     return $retval;
  74
  75 }
  76
  77 /* vim: set expandtab: */
  78
  79 ?>