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108 lines
2.8 KiB
PHP
108 lines
2.8 KiB
PHP
<?php
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/*
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* Smarty plugin
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* -------------------------------------------------------------
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* Type: function
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* Name: cycle
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* Version: 1.3
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* Date: May 3, 2002
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* Author: Monte Ohrt <monte@ispi.net>
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* Credits: Mark Priatel <mpriatel@rogers.com>
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* Gerard <gerard@interfold.com>
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* Jason Sweat <jsweat_php@yahoo.com>
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* Purpose: cycle through given values
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* Input: name = name of cycle (optional)
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* values = comma separated list of values to cycle,
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* or an array of values to cycle
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* (this can be left out for subsequent calls)
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*
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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
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* printed.
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*
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* Examples: {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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*/
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function smarty_function_cycle($params, &$smarty)
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{
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static $cycle_vars;
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extract($params);
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if (empty($name)) {
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$name = 'default';
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}
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if (!isset($print)) {
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$print = true;
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}
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if (!isset($advance)) {
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$advance = true;
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}
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if (!isset($reset)) {
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$reset = false;
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}
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if (!in_array('values', array_keys($params))) {
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if(!isset($cycle_vars[$name]['values'])) {
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$smarty->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'])
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&& $cycle_vars[$name]['values'] != $values ) {
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$cycle_vars[$name]['index'] = 0;
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}
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$cycle_vars[$name]['values'] = $values;
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}
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if (isset($delimiter)) {
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$cycle_vars[$name]['delimiter'] = $delimiter;
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} elseif (!isset($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 = explode($cycle_vars[$name]['delimiter'],$cycle_vars[$name]['values']);
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} else {
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$cycle_array = $cycle_vars[$name]['values'];
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}
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if(!isset($cycle_vars[$name]['index']) || $reset ) {
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$cycle_vars[$name]['index'] = 0;
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}
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if (isset($assign)) {
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$print = false;
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$smarty->assign($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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/* vim: set expandtab: */
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?>
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