在使用Layout布局时,TP只提供了替换单一占位__CONTENT__布局。如果想要临时加点内容到特殊位置,那就得另外定义一个布局文件。本人在原基础上增加了占位符解析。可以方便在想要的位置插入代码
在使用Layout布局时,TP只提供了替换单一占位__CONTENT__布局。如果想要临时加点内容到特殊位置,那就得另外定义一个布局文件。本人在原基础上增加了占位符解析。可以方便在想要的位置插入代码。TP原布局方式仍然可用。具体代码如下//修改替换ThinkPHP/Library/Think/Template模版类中的parseLayout布局解析方法<br>
//使用正则匹配placeholder区域,并替换placeholder特性name所指定的在布局中的占位<br>
//占位格式:{__占位名__}<br>
protected function parseLayout($content) {<br>
// 读取模板中的布局标签<br>
$find = preg_match('/'.$this->config['taglib_begin'].'layout\s(.+?)\s*?\/'.$this->config['taglib_end'].'/is',$content,$matches);<br>
if($find) {<br>
//替换Layout标签<br>
$content = str_replace($matches[0],'',$content);<br>
//解析Layout标签<br>
$array = $this->parseXmlAttrs($matches[1]);<br>
if(!C('LAYOUT_ON') || C('LAYOUT_NAME') !=$array['name'] ) {<br>
// 读取布局模板<br>
$layoutFile = THEME_PATH.$array['name'].$this->config['template_suffix'];<br>
$pattern='/'.$this->config['taglib_begin'].'placeholder\s([^'.$this->config['taglib_end'].']*?)'.$this->config['taglib_end'].'\s(.+?)\s*?'.$this->config['taglib_begin'].'\/placeholder'.$this->config['taglib_end'].'/is';<br>
$result= preg_match_all($pattern,$content,$matches);<br>
if($result){<br>
$layout=file_get_contents($layoutFile);<br>
foreach($matches[0] as $index=>$placeholder){<br>
$array=$this->parseXmlAttrs($matches[1][$index]);<br>
$replace='{__'.$array["name"]."__}";<br>
$layout = str_replace($replace,$matches[2][$index],$layout);<br>
}<br>
$content=$layout;<br>
}else{<br>
$replace = isset($array['replace'])?$array['replace']:$this->config['layout_item'];<br>
// 替换布局的主体内容<br>
$content = str_replace($replace,$content,file_get_contents($layoutFile));<br>
}<br>
//替换掉模版中空的占位<br>
$content=preg_replace('/{__\w+?__}/','',$content);<br>
}<br>
}else{<br>
$content = str_replace('{__NOLAYOUT__}','',$content);<br>
}<br>
<br>
return $content;<br>
}
使用实例:
布局文件:<br>
{__HEADER__}<br>
{__CONTENT__}<br>
{__FOOTER__}<br>
应用:<layout></layout><br>
<placeholder></placeholder><br>
<placeholder></placeholder><br>
<placeholder></placeholder>
这样,就可以在你的布局文件中定义任意的占位符,方便你在想要的位置插入代码
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