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Editing: function.cycle.php

<?php
/**
 * Smarty plugin
 *
 * @package    Smarty
 * @subpackage PluginsFunction
 */
/**
 * Smarty {cycle} function plugin
 * Type:     function
 * Name:     cycle
 * Date:     May 3, 2002
 * Purpose:  cycle through given values
 * Params:
 *
 * - name      - name of cycle (optional)
 * - values    - comma separated list of values to cycle, or an array of values to cycle
 *               (this can be left out for subsequent calls)
 * - reset     - boolean - resets given var to true
 * - print     - boolean - print var or not. default is true
 * - advance   - boolean - whether or not to advance the cycle
 * - delimiter - the value delimiter, default is ","
 * - assign    - boolean, assigns to template var instead of printed.
 *
 * Examples:
 *
 * {cycle values="#eeeeee,#d0d0d0d"}
 * {cycle name=row values="one,two,three" reset=true}
 * {cycle name=row}
 *
 * @link    http://www.smarty.net/manual/en/language.function.cycle.php {cycle}
 *           (Smarty online manual)
 * @author  Monte Ohrt <monte at ohrt dot com>
 * @author  credit to Mark Priatel <mpriatel@rogers.com>
 * @author  credit to Gerard <gerard@interfold.com>
 * @author  credit to Jason Sweat <jsweat_php@yahoo.com>
 * @version 1.3
 *
 * @param array                    $params   parameters
 * @param Smarty_Internal_Template $template template object
 *
 * @return string|null
 */
function smarty_function_cycle($params, $template)
{
    static $cycle_vars;
    $name = (empty($params[ 'name' ])) ? 'default' : $params[ 'name' ];
    $print = (isset($params[ 'print' ])) ? (bool)$params[ 'print' ] : true;
    $advance = (isset($params[ 'advance' ])) ? (bool)$params[ 'advance' ] : true;
    $reset = (isset($params[ 'reset' ])) ? (bool)$params[ 'reset' ] : false;
    if (!isset($params[ 'values' ])) {
        if (!isset($cycle_vars[ $name ][ 'values' ])) {
            trigger_error('cycle: missing \'values\' parameter');
            return;
        }
    } else {
        if (isset($cycle_vars[ $name ][ 'values' ]) && $cycle_vars[ $name ][ 'values' ] !== $params[ 'values' ]) {
            $cycle_vars[ $name ][ 'index' ] = 0;
        }
        $cycle_vars[ $name ][ 'values' ] = $params[ 'values' ];
    }
    if (isset($params[ 'delimiter' ])) {
        $cycle_vars[ $name ][ 'delimiter' ] = $params[ 'delimiter' ];
    } elseif (!isset($cycle_vars[ $name ][ 'delimiter' ])) {
        $cycle_vars[ $name ][ 'delimiter' ] = ',';
    }
    if (is_array($cycle_vars[ $name ][ 'values' ])) {
        $cycle_array = $cycle_vars[ $name ][ 'values' ];
    } else {
        $cycle_array = explode($cycle_vars[ $name ][ 'delimiter' ], $cycle_vars[ $name ][ 'values' ]);
    }
    if (!isset($cycle_vars[ $name ][ 'index' ]) || $reset) {
        $cycle_vars[ $name ][ 'index' ] = 0;
    }
    if (isset($params[ 'assign' ])) {
        $print = false;
        $template->assign($params[ 'assign' ], $cycle_array[ $cycle_vars[ $name ][ 'index' ] ]);
    }
    if ($print) {
        $retval = $cycle_array[ $cycle_vars[ $name ][ 'index' ] ];
    } else {
        $retval = null;
    }
    if ($advance) {
        if ($cycle_vars[ $name ][ 'index' ] >= count($cycle_array) - 1) {
            $cycle_vars[ $name ][ 'index' ] = 0;
        } else {
            $cycle_vars[ $name ][ 'index' ]++;
        }
    }
    return $retval;
}

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