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