解决此问题有两种办法：1、第三层if换成eq或者原生 2、修改Tp核心配置文件
1、第三层if换成eq或者原生
如下图
name为条件 和value为值
2、修改TP核心配置文件，路径如下
thinkphp/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php
// +----------------------------------------------------------------------
namespace Think\Template\TagLib;
use Think\Template\TagLib;
/**
* CX标签库解析类
*/
class Cx extends TagLib
{
// 标签定义
protected $tags = array(
// 标签定义： attr 属性列表 close 是否闭合（0 或者1 默认1） alias 标签别名 level 嵌套层次
'php' => array(),
'volist' => array('attr' => 'name,id,offset,length,key,mod', 'level' => 3, 'alias' => 'iterate'),
'foreach' => array('attr' => 'name,item,key', 'level' => 3),
'if' => array('attr' => 'condition', 'level' => 2),
'elseif' => array('attr' => 'condition', 'close' => 0),
'else' => array('attr' => '', 'close' => 0),
'switch' => array('attr' => 'name', 'level' => 2),
'case' => array('attr' => 'value,break'),
'default' => array('attr' => '', 'close' => 0),
'compare' => array('attr' => 'name,value,type', 'level' => 3, 'alias' => 'eq,equal,notequal,neq,gt,lt,egt,elt,heq,nheq'),
'range' => array('attr' => 'name,value,type', 'level' => 3, 'alias' => 'in,notin,between,notbetween'),
'empty' => array('attr' => 'name', 'level' => 3),
'notempty' => array('attr' => 'name', 'level' => 3),
'present' => array('attr' => 'name', 'level' => 3),
'notpresent' => array('attr' => 'name', 'level' => 3),
'defined' => array('attr' => 'name', 'level' => 3),
'notdefined' => array('attr' => 'name', 'level' => 3),
'import' => array('attr' => 'file,href,type,value,basepath', 'close' => 0, 'alias' => 'load,css,js'),
'assign' => array('attr' => 'name,value', 'close' => 0),
'define' => array('attr' => 'name,value', 'close' => 0),
'for' => array('attr' => 'start,end,name,comparison,step', 'level' => 3),
);
/**
* php标签解析
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _php($tag, $content)
{
$parseStr = '';
return $parseStr;
}
/**
* volist标签解析 循环输出数据集
* 格式：
*
* {user.username}
* {user.email}
*
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string|void
*/
public function _volist($tag, $content)
{
$name = $tag['name'];
$id = $tag['id'];
$empty = isset($tag['empty']) ? $tag['empty'] : '';
$key = !empty($tag['key']) ? $tag['key'] : 'i';
$mod = isset($tag['mod']) ? $tag['mod'] : '2';
// 允许使用函数设定数据集 {$vo.name}
$parseStr = 'autoBuildVar($name);
}
$parseStr .= 'if(is_array(' . $name . ')): $' . $key . ' = 0;';
if (isset($tag['length']) && '' != $tag['length']) {
$parseStr .= ' $__LIST__ = array_slice(' . $name . ',' . $tag['offset'] . ',' . $tag['length'] . ',true);';
} elseif (isset($tag['offset']) && '' != $tag['offset']) {
$parseStr .= ' $__LIST__ = array_slice(' . $name . ',' . $tag['offset'] . ',null,true);';
} else {
$parseStr .= ' $__LIST__ = ' . $name . ';';
}
$parseStr .= 'if( count($__LIST__)==0 ) : echo "' . $empty . '" ;';
$parseStr .= 'else: ';
$parseStr .= 'foreach($__LIST__ as $key=>$' . $id . '): ';
$parseStr .= '$mod = ($' . $key . ' % ' . $mod . ' );';
$parseStr .= '++$' . $key . ';?>';
$parseStr .= $this->tpl->parse($content);
$parseStr .= '';
if (!empty($parseStr)) {
return $parseStr;
}
return;
}
/**
* foreach标签解析 循环输出数据集
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string|void
*/
public function _foreach($tag, $content)
{
$name = $tag['name'];
$item = $tag['item'];
$key = !empty($tag['key']) ? $tag['key'] : 'key';
$name = $this->autoBuildVar($name);
$parseStr = '$' . $item . '): ?>';
$parseStr .= $this->tpl->parse($content);
$parseStr .= '';
if (!empty($parseStr)) {
return $parseStr;
}
return;
}
/**
* if标签解析
* 格式：
*
*
* 表达式支持 eq neq gt egt lt elt == > >= < <= or and || &&
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _if($tag, $content)
{
$condition = $this->parseCondition($tag['condition']);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* else标签解析
* 格式：见if标签
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _elseif($tag, $content)
{
$condition = $this->parseCondition($tag['condition']);
$parseStr = '';
return $parseStr;
}
/**
* else标签解析
* @access public
* @param array $tag 标签属性
* @return string
*/
public function _else($tag)
{
$parseStr = '';
return $parseStr;
}
/**
* switch标签解析
* 格式：
*
* 1
* 2
*
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _switch($tag, $content)
{
$name = $tag['name'];
$varArray = explode('|', $name);
$name = array_shift($varArray);
$name = $this->autoBuildVar($name);
if (count($varArray) > 0) {
$name = $this->tpl->parseVarFunction($name, $varArray);
}
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* case标签解析 需要配合switch才有效
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _case($tag, $content)
{
$value = $tag['value'];
if ('$' == substr($value, 0, 1)) {
$varArray = explode('|', $value);
$value = array_shift($varArray);
$value = $this->autoBuildVar(substr($value, 1));
if (count($varArray) > 0) {
$value = $this->tpl->parseVarFunction($value, $varArray);
}
$value = 'case ' . $value . ': ';
} elseif (strpos($value, '|')) {
$values = explode('|', $value);
$value = '';
foreach ($values as $val) {
$value .= 'case "' . addslashes($val) . '": ';
}
} else {
$value = 'case "' . $value . '": ';
}
$parseStr = '' . $content;
$isBreak = isset($tag['break']) ? $tag['break'] : '';
if ('' == $isBreak || $isBreak) {
$parseStr .= '';
}
return $parseStr;
}
/**
* default标签解析 需要配合switch才有效
* 使用： content
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _compare($tag, $content, $type = 'eq')
{
$name = $tag['name'];
$value = $tag['value'];
$type = isset($tag['type']) ? $tag['type'] : $type;
$type = $this->parseCondition(' ' . $type . ' ');
$varArray = explode('|', $name);
$name = array_shift($varArray);
$name = $this->autoBuildVar($name);
if (count($varArray) > 0) {
$name = $this->tpl->parseVarFunction($name, $varArray);
}
if ('$' == substr($value, 0, 1)) {
$value = $this->autoBuildVar(substr($value, 1));
} else {
$value = '"' . $value . '"';
}
$parseStr = '' . $content . '';
return $parseStr;
}
public function _eq($tag, $content)
{
return $this->_compare($tag, $content, 'eq');
}
public function _equal($tag, $content)
{
return $this->_compare($tag, $content, 'eq');
}
public function _neq($tag, $content)
{
return $this->_compare($tag, $content, 'neq');
}
public function _notequal($tag, $content)
{
return $this->_compare($tag, $content, 'neq');
}
public function _gt($tag, $content)
{
return $this->_compare($tag, $content, 'gt');
}
public function _lt($tag, $content)
{
return $this->_compare($tag, $content, 'lt');
}
public function _egt($tag, $content)
{
return $this->_compare($tag, $content, 'egt');
}
public function _elt($tag, $content)
{
return $this->_compare($tag, $content, 'elt');
}
public function _heq($tag, $content)
{
return $this->_compare($tag, $content, 'heq');
}
public function _nheq($tag, $content)
{
return $this->_compare($tag, $content, 'nheq');
}
/**
* range标签解析
* 如果某个变量存在于某个范围 则输出内容 type= in 表示在范围内 否则表示在范围外
* 格式： content
* example: content
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @param string $type 比较类型
* @return string
*/
public function _range($tag, $content, $type = 'in')
{
$name = $tag['name'];
$value = $tag['value'];
$varArray = explode('|', $name);
$name = array_shift($varArray);
$name = $this->autoBuildVar($name);
if (count($varArray) > 0) {
$name = $this->tpl->parseVarFunction($name, $varArray);
}
$type = isset($tag['type']) ? $tag['type'] : $type;
if ('$' == substr($value, 0, 1)) {
$value = $this->autoBuildVar(substr($value, 1));
$str = 'is_array(' . $value . ')?' . $value . ':explode(\',\',' . $value . ')';
} else {
$value = '"' . $value . '"';
$str = 'explode(\',\',' . $value . ')';
}
if ('between' == $type) {
$parseStr = '= $_RANGE_VAR_[0] && ' . $name . '<= $_RANGE_VAR_[1]):?>' . $content . '';
} elseif ('notbetween' == $type) {
$parseStr = '$_RANGE_VAR_[1]):?>' . $content . '';
} else {
$fun = ('in' == $type) ? 'in_array' : '!in_array';
$parseStr = '' . $content . '';
}
return $parseStr;
}
// range标签的别名 用于in判断
public function _in($tag, $content)
{
return $this->_range($tag, $content, 'in');
}
// range标签的别名 用于notin判断
public function _notin($tag, $content)
{
return $this->_range($tag, $content, 'notin');
}
public function _between($tag, $content)
{
return $this->_range($tag, $content, 'between');
}
public function _notbetween($tag, $content)
{
return $this->_range($tag, $content, 'notbetween');
}
/**
* present标签解析
* 如果某个变量已经设置 则输出内容
* 格式： content
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _present($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* notpresent标签解析
* 如果某个变量没有设置，则输出内容
* 格式： content
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _notpresent($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* empty标签解析
* 如果某个变量为empty 则输出内容
* 格式： content
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function _empty($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = '' . $content . '';
return $parseStr;
}
public function _notempty($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* 判断是否已经定义了该常量
* 已定义
* @param $attr
* @param $content
* @return string
*/
public function _defined($tag, $content)
{
$name = $tag['name'];
$parseStr = '' . $content . '';
return $parseStr;
}
public function _notdefined($tag, $content)
{
$name = $tag['name'];
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* import 标签解析