* Name: cycle
* Date: May 3, 2002
* Purpose: cycle through given values
* Input: * - 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://smarty.php.net/manual/en/language.function.cycle.php {cycle} * (Smarty online manual) * @author Monte Ohrt * @author credit to Mark Priatel * @author credit to Gerard * @author credit to Jason Sweat * @version 1.3 * @param array * @param Smarty * @return string|null */ function smarty_function_cycle($params, &$smarty) { static $cycle_vars; extract($params); if (empty($name)) { $name = 'default'; } if (!isset($print)) { $print = true; } if (!isset($advance)) { $advance = true; } if (!isset($reset)) { $reset = false; } if (!in_array('values', array_keys($params))) { if(!isset($cycle_vars[$name]['values'])) { $smarty->trigger_error("cycle: missing 'values' parameter"); return; } } else { if(isset($cycle_vars[$name]['values']) && $cycle_vars[$name]['values'] != $values ) { $cycle_vars[$name]['index'] = 0; } $cycle_vars[$name]['values'] = $values; } if (isset($delimiter)) { $cycle_vars[$name]['delimiter'] = $delimiter; } elseif (!isset($cycle_vars[$name]['delimiter'])) { $cycle_vars[$name]['delimiter'] = ','; } if(!is_array($cycle_vars[$name]['values'])) { $cycle_array = explode($cycle_vars[$name]['delimiter'],$cycle_vars[$name]['values']); } else { $cycle_array = $cycle_vars[$name]['values']; } if(!isset($cycle_vars[$name]['index']) || $reset ) { $cycle_vars[$name]['index'] = 0; } if (isset($assign)) { $print = false; $smarty->assign($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; } /* vim: set expandtab: */ ?>