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69 lines
2.1 KiB
PHP
69 lines
2.1 KiB
PHP
<?php
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/**
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* Cycles between several values and returns one of them on each call
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* <pre>
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* * name : the cycler name, specify if you need to have multiple concurrent cycles running
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* * values : an array of values or a string of values delimited by $delimiter
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* * print : if false, the pointer will go to the next one but not print anything
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* * advance : if false, the pointer will not advance to the next value
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* * delimiter : the delimiter used to split values if they are provided as a string
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* * assign : if set, the value is saved in that variable instead of being output
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* * reset : if true, the pointer is reset to the first value
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* </pre>
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* This software is provided 'as-is', without any express or implied warranty.
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* In no event will the authors be held liable for any damages arising from the use of this software.
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*
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* @author Jordi Boggiano <j.boggiano@seld.be>
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* @copyright Copyright (c) 2008, Jordi Boggiano
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* @license http://dwoo.org/LICENSE Modified BSD License
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* @link http://dwoo.org/
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* @version 1.1.0
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* @date 2009-07-18
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* @package Dwoo
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*/
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class Dwoo_Plugin_cycle extends Dwoo_Plugin
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{
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protected $cycles = array();
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public function process($name = 'default', $values = null, $print = true, $advance = true, $delimiter = ',', $assign = null, $reset = false)
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{
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if ($values !== null) {
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if (is_string($values)) {
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$values = explode($delimiter, $values);
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}
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if (!isset($this->cycles[$name]) || $this->cycles[$name]['values'] !== $values) {
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$this->cycles[$name]['index'] = 0;
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}
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$this->cycles[$name]['values'] = array_values($values);
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} elseif (isset($this->cycles[$name])) {
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$values = $this->cycles[$name]['values'];
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}
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if ($reset) {
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$this->cycles[$name]['index'] = 0;
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}
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if ($print) {
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$out = $values[$this->cycles[$name]['index']];
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} else {
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$out = null;
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}
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if ($advance) {
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if ($this->cycles[$name]['index'] >= count($values)-1) {
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$this->cycles[$name]['index'] = 0;
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} else {
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$this->cycles[$name]['index']++;
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}
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}
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if ($assign === null) {
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return $out;
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}
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$this->dwoo->assignInScope($out, $assign);
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}
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}
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