修正了for循环标签嵌套变量冲突的问题

git-svn-id: http://thinkphp.googlecode.com/svn/trunk@2979 539fd3ec-2725-0410-b7ab-251e373a8e33

Author: zuojiazi.cn@gmail.com

ThinkPHP/Lib/Driver/TagLib/TagLibCx.class.php

@@ -690,6 +690,7 @@ public function _for($attr, $content){
  $step	= 1;
  $comparison = 'lt';
  $name= 'i';
+$rand = rand(); //添加随机数，防止嵌套变量冲突
  //获取属性
  foreach ($this->parseXmlAttr($attr, 'for') as $key => $value){
  $value = trim($value);
@@ -706,8 +707,8 @@ public function _for($attr, $content){
 	}
 	}
 
- $parseStr = '<?php $__FOR_START__='.$start.';$__FOR_END__='.$end.';';
- $parseStr .= 'for($'.$name.'=$__FOR_START__;'.$this->parseCondition('$'.$name.' '.$comparison.' $__FOR_END__').';$'.$name.'+='.$step.'){ ?>';
+ $parseStr = '<?php $__FOR_START_'.$rand.'__='.$start.';$__FOR_END_'.$rand.'__='.$end.';';
+ $parseStr .= 'for($'.$name.'=$__FOR_START_'.$rand.'__;'.$this->parseCondition('$'.$name.' '.$comparison.' $__FOR_END_'.$rand.'__').';$'.$name.'+='.$step.'){ ?>';
  $parseStr .= $content;
  $parseStr .= '<?php } ?>';
  return $parseStr;