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>$document</span>->addScriptDeclaration('alert(1)');<span>//</span><span>添加js代碼</span>
<span>$document</span>->addStyleDeclaration(); <span>//</span><span>css</span>
<span>$document</span>->addStyleSheet('1.css'<span>);
</span><span>$document</span>->setMetaData('description','關(guān)鍵字');<span>//</span><span>設(shè)置描述或關(guān)鍵字</span>
<span>$document</span>->setCharset('utf-8'<span>);
</span><span>$document</span>->setTitle('標(biāo)題');

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>獲取擴(kuò)展名不含.</span>
getName(<span>$file</span>) <span>//</span><span>獲得文件名</span>
exists(<span>$file</span>) <span>//</span><span>文件是否存在</span>
delete(<span>$file</span>) <span>//</span><span>刪除文件</span>
<span>copy</span>(<span>$old</span>,<span>$new</span>) <span>//</span><span>復(fù)制</span>
upload(<span>$src</span>) <span>//</span><span>上傳</span>
write(<span>$file</span>) <span>//</span><span>寫文件</span>
read(<span>$file</span>)  <span>//</span><span>讀文件</span>
move(<span>$old</span>,<span>$new</span>) <span>//</span><span>移動文件</span>

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>$path</span>,777) <span>//</span><span>創(chuàng)建文件夾,支持多層</span>
JFolder::delete(<span>$path</span>)  <span>//</span><span>刪除文件夾,可以包含文件</span>
JFolder::exists(<span>$path</span>)  <span>//</span><span>檢測文件夾是否存在</span>
JFolder::<span>copy</span>(<span>$pathold</span>,<span>$pathnew</span>) <span>//</span><span>復(fù)制文件夾</span>
JFolder::files(<span>$path</span>) <span>//</span><span>列出文件夾下面文件的數(shù)組</span>
JFolder::folders(<span>$path</span>) <span>//</span><span>列出文件夾下面文件夾的數(shù)組</span>

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::_('添加個人信息'), 'weblinks.png');<span>//</span><span>標(biāo)題</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>保存關(guān)閉</span>
JToolBarHelper::editList('info.edit');<span>//</span><span>編輯</span>
JToolBarHelper::cancel('info.cancel');<span>//</span><span>取消</span>
JToolBarHelper::deleteList('info.delete');<span>//</span><span>刪除</span>
JToolBarHelper::trash('info.trash');<span>//</span><span>回收站</span>
JToolBarHelper::divider();<span>//</span><span>分割線</span>
JToolBarHelper::publish('weblinks.publish', 'JTOOLBAR_PUBLISH', <span>true</span>);<span>//</span><span>發(fā)布</span>
JToolBarHelper::unpublish('weblinks.unpublish', 'JTOOLBAR_UNPUBLISH', <span>true</span>);<span>//</span><span>取消發(fā)布</span>
JToolBarHelper::back();<span>//</span><span>返回</span>
JToolBarHelper::help('JHELP_COMPONENTS_WEBLINKS_LINKS');<span>//</span><span>幫助</span>

5. Other commonly used methods

JString::transcode('中國','utf-8','gb2312');<span>//</span><span>轉(zhuǎn)換編碼</span>
JUtility::getToken();<span>//</span><span>用戶session ID 等價于JHtml::_('form.token');</span>
JUtility::isWinos();<span>//</span><span>是否win系統(tǒng) 是輸出1</span>
JUtility::sendmail('logove#qq.com','yoby','logoove#foxmail.com','主題','這是內(nèi)容');<span>//</span><span>發(fā)送郵件要配置的</span>
JUtility::gethash(<span>$var</span>);<span>//</span><span>32位隨機(jī)字符</span>
JUtility::return_bytes('1k');<span>//</span><span>轉(zhuǎn)換成字節(jié)數(shù) 支持g m k</span>
JRequest::getURI();<span>//</span><span>獲得當(dāng)前url</span>
    JRequest::getMethod ();<span>//</span><span>提交方式 POST 或GET</span>
    JRequest::getbool('i');<span>//</span><span>轉(zhuǎn)換成布爾型</span>
    JRequest::getint('i');<span>//</span><span>取整</span>
    JRequest::getfloat('i');<span>//</span><span>轉(zhuǎn)換成浮點(diǎn)數(shù)</span>
    JRequest::getString('i');<span>//</span><span>轉(zhuǎn)成字符串</span>
    JRequest::getvar('var',<span>null</span>,'default','array');<span>//</span><span>通用,第二個是默認(rèn)值,第三個是方法,有GET
    //POST FILES COOKIE ENV SERVER  最后一個是數(shù)據(jù)類型 有array int string float</span>
    JRequest::setVar('var',<span>$arr</span>);<span>//</span><span>設(shè)置,可以數(shù)組或字符</span>
    JURI::base();<span>//</span><span>包含administrator絕對路徑 參數(shù)1是相對路徑</span>
    JURI::root();<span>//</span><span>根目錄,參數(shù)1是相對路徑</span>

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

JArrayHelper::arrayUnique(<span>$arr2</span>);<span>//</span><span>去掉重復(fù)元素</span>
    <span>$obj</span> = <span>new</span><span> stdClass();
    </span><span>$obj</span>->qq='280594236'<span>;
    JArrayHelper</span>::fromObject(<span>$obj</span>);<span>//</span><span>對象轉(zhuǎn)換數(shù)組</span>
    JArrayHelper::getValue(<span>$arr</span>,1);<span>//</span><span>獲得數(shù)組第二個值,也可以是下標(biāo)</span>
    JArrayHelper::toObject(<span>$arr</span>);<span>//</span><span>轉(zhuǎn)換對象</span>
    JArrayHelper::toString(<span>$arr</span>,'=',' ');<span>//</span><span>轉(zhuǎn)成字符串,空格隔開,左邊key=value</span>
    JArrayHelper :: toInteger(<span>$cid</span>);<span>//</span><span>轉(zhuǎn)換變量為整形</span>

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)