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/framework/vendor/smarty2/lib/plugins/function.cycle.php

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PHP | 102 lines | 48 code | 12 blank | 42 comment | 16 complexity | db7b2e51bd5e26f93032929dcb2d531b MD5 | raw file
  1<?php
  2/**
  3 * Smarty plugin
  4 * @package Smarty
  5 * @subpackage plugins
  6 */
  7
  8/**
  9 * Smarty {cycle} function plugin
 10 *
 11 * Type:     function<br>
 12 * Name:     cycle<br>
 13 * Date:     May 3, 2002<br>
 14 * Purpose:  cycle through given values<br>
 15 * Input:
 16 *         - name = name of cycle (optional)
 17 *         - values = comma separated list of values to cycle,
 18 *                    or an array of values to cycle
 19 *                    (this can be left out for subsequent calls)
 20 *         - reset = boolean - resets given var to true
 21 *         - print = boolean - print var or not. default is true
 22 *         - advance = boolean - whether or not to advance the cycle
 23 *         - delimiter = the value delimiter, default is ","
 24 *         - assign = boolean, assigns to template var instead of
 25 *                    printed.
 26 *
 27 * Examples:<br>
 28 * <pre>
 29 * {cycle values="#eeeeee,#d0d0d0d"}
 30 * {cycle name=row values="one,two,three" reset=true}
 31 * {cycle name=row}
 32 * </pre>
 33 * @link http://smarty.php.net/manual/en/language.function.cycle.php {cycle}
 34 *       (Smarty online manual)
 35 * @author Monte Ohrt <monte at ohrt dot com>
 36 * @author credit to Mark Priatel <mpriatel@rogers.com>
 37 * @author credit to Gerard <gerard@interfold.com>
 38 * @author credit to Jason Sweat <jsweat_php@yahoo.com>
 39 * @version  1.3
 40 * @param array
 41 * @param Smarty
 42 * @return string|null
 43 */
 44function smarty_function_cycle($params, &$smarty)
 45{
 46    static $cycle_vars;
 47    
 48    $name = (empty($params['name'])) ? 'default' : $params['name'];
 49    $print = (isset($params['print'])) ? (bool)$params['print'] : true;
 50    $advance = (isset($params['advance'])) ? (bool)$params['advance'] : true;
 51    $reset = (isset($params['reset'])) ? (bool)$params['reset'] : false;
 52            
 53    if (!in_array('values', array_keys($params))) {
 54        if(!isset($cycle_vars[$name]['values'])) {
 55            $smarty->trigger_error("cycle: missing 'values' parameter");
 56            return;
 57        }
 58    } else {
 59        if(isset($cycle_vars[$name]['values'])
 60            && $cycle_vars[$name]['values'] != $params['values'] ) {
 61            $cycle_vars[$name]['index'] = 0;
 62        }
 63        $cycle_vars[$name]['values'] = $params['values'];
 64    }
 65
 66    $cycle_vars[$name]['delimiter'] = (isset($params['delimiter'])) ? $params['delimiter'] : ',';
 67    
 68    if(is_array($cycle_vars[$name]['values'])) {
 69        $cycle_array = $cycle_vars[$name]['values'];
 70    } else {
 71        $cycle_array = explode($cycle_vars[$name]['delimiter'],$cycle_vars[$name]['values']);
 72    }
 73    
 74    if(!isset($cycle_vars[$name]['index']) || $reset ) {
 75        $cycle_vars[$name]['index'] = 0;
 76    }
 77    
 78    if (isset($params['assign'])) {
 79        $print = false;
 80        $smarty->assign($params['assign'], $cycle_array[$cycle_vars[$name]['index']]);
 81    }
 82        
 83    if($print) {
 84        $retval = $cycle_array[$cycle_vars[$name]['index']];
 85    } else {
 86        $retval = null;
 87    }
 88
 89    if($advance) {
 90        if ( $cycle_vars[$name]['index'] >= count($cycle_array) -1 ) {
 91            $cycle_vars[$name]['index'] = 0;
 92        } else {
 93            $cycle_vars[$name]['index']++;
 94        }
 95    }
 96    
 97    return $retval;
 98}
 99
100/* vim: set expandtab: */
101
102?>