thinkphp’s default tag parser is in Lib/Template/TagLib/TagLibCx.class
It defines commonly used volist php and other commonly used thinkphp tags
Here the author adds a
Tag format:
Tag function:
Loop out the column whose parent ID is parentid
1. Add
in the private attribute of tagLibCx.class'category'=array('attr'=>'parentid',level=>3)
Among them, attr: the attribute level of the tag and the nesting level of the tag
2. Add parsing function
The principle of tag parsing is to obtain the corresponding information by reading the xml file, and then piece it together into the required
php source code, finally output on the page through echo
The specific code is as follows:
public function _category($attr,$content)
{
//Parse all attributes of the tag into the $tag array
$tag = $this->parseXmlAttr($attr,'category');
//Get the attributes in the tag
$parentid= $tag['parentid'];
//Define variables for page parsing
$result = !empty($tag['result'])?$tag['result']:'cat'; //Define data query result storage variables
$key = !empty($tag['key'])?$tag['key']:'i';
$mod = isset($tag['mod'])?$tag['mod']:'2';
//Piece together the database query statement. Here we directly use the function encapsulated by CategoryModel
$sql = "D('Category')->";
$sql .= "getCategorys(".$parentid.')';
//Piece together the output characters
$parsestr = '
$parsestr .= 'foreach($_result as $key=>$'.$result.'):';
$parsestr .= '++$'.$key.';$mod = ($'.$key.' % '.$mod.' );?>';
$parsestr .= $content;//Parse the content in the category tag
$parsestr .= '';
return $parsestr;
}
getCategorys method in CategoryModel
/*
* Get column information based on parentid
* $parentid parent id
* Whether $withSelf contains self
*/
public function getCategorys($parentid,$withSelf=0)
{
$parentid=intval($parentid);
$categorys=$this->where(array('parentid'=>$parentid,'ismenu'=>1))->order('listorder ASC')->select();
//include self
if($withSelf)
{
$categorys2=$this->where(array('id'=>$parentid,'ismenu'=>1))->limit(1)->select();
$category=array_merge($categorys,$categorys2);
}
return $categorys;
}
3. Quotes on the page
Such a tag is ready^_^! We can get rid of the volist and dynamically output what we want on the page
Excerpted from Wok

thinkphp是国产框架。ThinkPHP是一个快速、兼容而且简单的轻量级国产PHP开发框架,是为了简化企业级应用开发和敏捷WEB应用开发而诞生的。ThinkPHP从诞生以来一直秉承简洁实用的设计原则,在保持出色的性能和至简的代码的同时,也注重易用性。

本篇文章给大家带来了关于thinkphp的相关知识,其中主要介绍了关于使用think-queue来实现普通队列和延迟队列的相关内容,think-queue是thinkphp官方提供的一个消息队列服务,下面一起来看一下,希望对大家有帮助。

thinkphp基于的mvc分别是指:1、m是model的缩写,表示模型,用于数据处理;2、v是view的缩写,表示视图,由View类和模板文件组成;3、c是controller的缩写,表示控制器,用于逻辑处理。mvc设计模式是一种编程思想,是一种将应用程序的逻辑层和表现层进行分离的方法。

本篇文章给大家带来了关于thinkphp的相关知识,其中主要介绍了使用jwt认证的问题,下面一起来看一下,希望对大家有帮助。

thinkphp查询库是否存在的方法:1、打开相应的tp文件;2、通过“ $isTable=db()->query('SHOW TABLES LIKE '."'".$data['table_name']."'");if($isTable){...}else{...}”方式验证表是否存在即可。

thinkphp扩展有:1、think-migration,是一种数据库迁移工具;2、think-orm,是一种ORM类库扩展;3、think-oracle,是一种Oracle驱动扩展;4、think-mongo,一种MongoDb扩展;5、think-soar,一种SQL语句优化扩展;6、porter,一种数据库管理工具;7、tp-jwt-auth,一个jwt身份验证扩展包。

本篇文章给大家带来了关于ThinkPHP的相关知识,其中主要整理了使用think-queue实现redis消息队列的相关问题,下面一起来看一下,希望对大家有帮助。

在thinkphp3.2中,可以利用define关闭调试模式,该标签用于变量和常量的定义,将入口文件中定义调试模式设为FALSE即可,语法为“define('APP_DEBUG', false);”;开启调试模式将参数值设置为true即可。


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