/packages/Output/Smarty/Core/plugins/function.counter.php

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