Summary research on commonly used classes in joomla2.5, summary of joomla2.5 classes-php手册-php.cn

Summary study of commonly used classes in joomla2.5, summary of joomla2.5 classes

The previous article only studied the JImage class. Today we will continue with other commonly used joomla built-in classes. Personally, I started with the commonly used classes. It is written from the perspective of using PHP itself. If PHP’s own functions are more convenient to use than Joomla’s built-in classes, I will not filter it out. If you really want to use it, check it out yourself. Personally, I feel that no matter how excellent the method is, if PHP’s own functions It can also be solved easily with functions, so it is best to use PHP built-in functions. The first thing to learn PHP is to learn the built-in functions well. Okay, let’s explain in detail the commonly used classes and methods.

1. Document class, used as the main operation on the head of the current page element.

<span>$document</span> = JFactory::<span>getDocument();
</span><span>$document</span>->addScript('1.js');<span>//</span><span>添加js文件</span>
<span>$document</span>->addScriptDeclaration('alert(1)');<span>//</span><span>添加js代码</span>
<span>$document</span>->addStyleDeclaration(); <span>//</span><span>css</span>
<span>$document</span>->addStyleSheet('1.css'<span>);
</span><span>$document</span>->setMetaData('description','关键字');<span>//</span><span>设置描述或关键字</span>
<span>$document</span>->setCharset('utf-8'<span>);
</span><span>$document</span>->setTitle('标题');

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2. File operation requires importing jimport('joomla.filesystem.file');

<span>$j</span> = <span>new</span><span> JFile();
getExt(</span><span>$file</span>) <span>//</span><span>获取扩展名不含.</span>
getName(<span>$file</span>) <span>//</span><span>获得文件名</span>
exists(<span>$file</span>) <span>//</span><span>文件是否存在</span>
delete(<span>$file</span>) <span>//</span><span>删除文件</span>
<span>copy</span>(<span>$old</span>,<span>$new</span>) <span>//</span><span>复制</span>
upload(<span>$src</span>) <span>//</span><span>上传</span>
write(<span>$file</span>) <span>//</span><span>写文件</span>
read(<span>$file</span>)  <span>//</span><span>读文件</span>
move(<span>$old</span>,<span>$new</span>) <span>//</span><span>移动文件</span>

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These methods are useful in file reading and writing, image file uploading, etc.

3. Folder operation, jimport('joomla.filesystem.folder'); Generally when we import, we import all files and folders, and we often use it

JFolder::create(<span>$path</span>,777) <span>//</span><span>创建文件夹,支持多层</span>
JFolder::delete(<span>$path</span>)  <span>//</span><span>删除文件夹,可以包含文件</span>
JFolder::exists(<span>$path</span>)  <span>//</span><span>检测文件夹是否存在</span>
JFolder::<span>copy</span>(<span>$pathold</span>,<span>$pathnew</span>) <span>//</span><span>复制文件夹</span>
JFolder::files(<span>$path</span>) <span>//</span><span>列出文件夹下面文件的数组</span>
JFolder::folders(<span>$path</span>) <span>//</span><span>列出文件夹下面文件夹的数组</span>

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Let me talk about it here:: It is a static method, and there are many classes that support static methods;

4. Icon generation class, used to generate small icons in the background. One of the commonly used saves is one.

JToolBarHelper::title(JText::_('添加个人信息'), 'weblinks.png');<span>//</span><span>标题</span>
JToolBarHelper::addNew('info.add');<span>//</span><span>添加</span>
JToolBarHelper::apply('info.apply');<span>//</span><span>保存</span>
JToolBarHelper::save('info.save');<span>//</span><span>保存关闭</span>
JToolBarHelper::editList('info.edit');<span>//</span><span>编辑</span>
JToolBarHelper::cancel('info.cancel');<span>//</span><span>取消</span>
JToolBarHelper::deleteList('info.delete');<span>//</span><span>删除</span>
JToolBarHelper::trash('info.trash');<span>//</span><span>回收站</span>
JToolBarHelper::divider();<span>//</span><span>分割线</span>
JToolBarHelper::publish('weblinks.publish', 'JTOOLBAR_PUBLISH', <span>true</span>);<span>//</span><span>发布</span>
JToolBarHelper::unpublish('weblinks.unpublish', 'JTOOLBAR_UNPUBLISH', <span>true</span>);<span>//</span><span>取消发布</span>
JToolBarHelper::back();<span>//</span><span>返回</span>
JToolBarHelper::help('JHELP_COMPONENTS_WEBLINKS_LINKS');<span>//</span><span>帮助</span>

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5. Other commonly used methods

JString::transcode('中国','utf-8','gb2312');<span>//</span><span>转换编码</span>
JUtility::getToken();<span>//</span><span>用户session ID 等价于JHtml::_('form.token');</span>
JUtility::isWinos();<span>//</span><span>是否win系统 是输出1</span>
JUtility::sendmail('logove#qq.com','yoby','logoove#foxmail.com','主题','这是内容');<span>//</span><span>发送邮件要配置的</span>
JUtility::gethash(<span>$var</span>);<span>//</span><span>32位随机字符</span>
JUtility::return_bytes('1k');<span>//</span><span>转换成字节数 支持g m k</span>
JRequest::getURI();<span>//</span><span>获得当前url</span>
    JRequest::getMethod ();<span>//</span><span>提交方式 POST 或GET</span>
    JRequest::getbool('i');<span>//</span><span>转换成布尔型</span>
    JRequest::getint('i');<span>//</span><span>取整</span>
    JRequest::getfloat('i');<span>//</span><span>转换成浮点数</span>
    JRequest::getString('i');<span>//</span><span>转成字符串</span>
    JRequest::getvar('var',<span>null</span>,'default','array');<span>//</span><span>通用,第二个是默认值,第三个是方法,有GET
    //POST FILES COOKIE ENV SERVER  最后一个是数据类型 有array int string float</span>
    JRequest::setVar('var',<span>$arr</span>);<span>//</span><span>设置,可以数组或字符</span>
    JURI::base();<span>//</span><span>包含administrator绝对路径 参数1是相对路径</span>
    JURI::root();<span>//</span><span>根目录,参数1是相对路径</span>

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6. Arrays are commonly used, this is the most commonly used

JArrayHelper::arrayUnique(<span>$arr2</span>);<span>//</span><span>去掉重复元素</span>
    <span>$obj</span> = <span>new</span><span> stdClass();
    </span><span>$obj</span>->qq='280594236'<span>;
    JArrayHelper</span>::fromObject(<span>$obj</span>);<span>//</span><span>对象转换数组</span>
    JArrayHelper::getValue(<span>$arr</span>,1);<span>//</span><span>获得数组第二个值,也可以是下标</span>
    JArrayHelper::toObject(<span>$arr</span>);<span>//</span><span>转换对象</span>
    JArrayHelper::toString(<span>$arr</span>,'=',' ');<span>//</span><span>转成字符串,空格隔开,左边key=value</span>
    JArrayHelper :: toInteger(<span>$cid</span>);<span>//</span><span>转换变量为整形</span>

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There are many other methods, such as database, xml, form generation, etc. These are all important, but there is too much content. I will talk about it later when I have the opportunity. Basically, these methods today are all commonly used. , if you need to know more, you need to study the API content yourself, or read the core code yourself. I have summarized it here, which can reduce your reading time. The comments at the back are very detailed. If you don’t understand, you can leave a message below. Joomla is A very excellent CMS, but it is not popular in China. Dedecms and discuz have more users. I will study it next time I have time. If you like CMS, don’t miss it.

(yoby original)