Function.cycle.php:
<?php
/*
* Smarty plugin
* -------------------------------------------------------------
* Type: function
* Name: cycle
* Version: 1.3
* Date: May 3, 2002
* Author: Monte Ohrt <monte <at> ispi <dot> net>
* Credits: Mark Priatel <mpriatel <at> rogers <dot> com>
* Gerard <gerard <at> interfold <dot> com>
* Jason Sweat <jsweat_php <at> yahoo <dot> com>
* 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}
* -------------------------------------------------------------
*/
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: */
?>
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