自己默写smarty模板引擎,不解析php呢(求高手帮忙)
$realcontent =$this->filecontent;
$mode = '/\{\$([\w]+)\}/';
if(preg_match($mode,$realcontent)){
var_dump($assign_vars);
$realcontent=preg_replace($mode,"assign_vars['$1'] ?>",$realcontent); ;//替换成index.php文件中注入的变量
}
return $realcontent;
}
运行后代码为
assign_vars['content'] ?>
作者:assign_vars['name'] ?>assign_vars['var'] ?>
------解决思路----------------------
<br /><br /><?php<br /><br />$realcontent = file_get_contents("template_test.html");<br />$tpl_string = <<< TEMPLEATE<br /><html><br /> <head><br /> <title>{\$title}</title><br /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><br /> </head><br /> <body><br /> <div>作者:{\$name}</div><br /> <div>国家:{\$china}</div><br /> <div>省份:{\$provice}</div><br /> <div>城市:{\$city}</div><br /> </body><br /></html><br />TEMPLEATE;<br />$mode = '/\{\$(\w+)\}/';<br />$assign_arr = array();<br />function assign($name, $value) { <br /> global $assign_arr;<br /> $assign_arr[$name] = empty($value) ? '' : $value; <br /> return $assign_arr;<br />}<br />function replace_content($match) {<br /> global $assign_arr;<br /> if (!empty($match)) { <br /> return array_key_exists($match[1], $assign_arr) ? $assign_arr[$match[1]] : '';<br /> }<br />}<br />assign("title", "I love you");<br />assign("name", "iseagold");<br />assign("china", "中国");<br />assign("provice", "广东省");<br />assign("city", "深圳市");<br />assign("no", "页面不存在,未取出的变量");<br />echo preg_replace_callback($mode, "replace_content", $tpl_string);<br /><br /><br />//===================================简单的类版本==========================================================<br />class Template {<br /> public $assign_items = array();<br /> public $content;<br /> <br /> function __construct($file) {<br /> $this->content = file_get_contents($file);<br /> }<br /> function assign($name, $value) {<br /> $this->assign_items[$name] = empty($value) ? "" : $value;<br /> }<br /> function replace() {<br /> $arr_assign_items = array();<br /> $content = '';<br /> $content = $this->content;<br /> $arr_assign_items = $this->assign_items; <br /> $pattern = '/\{\$(\w+)\}/';<br /> $this->content = preg_replace_callback($pattern, function($match) use($arr_assign_items) {<br /> if (!empty($match)) { <br /> <br /> if (array_key_exists($match[1], $arr_assign_items)) {<br /> echo $arr_assign_items[$match[1]];<br /> return $arr_assign_items[$match[1]];<br /> }<br /> }<br /> }, $content);<br /> }<br /> function display() {<br /> echo $this->content;<br /> }<br />}<br />$template = new Template("template_test.html");<br />$template->assign("title", "I love you");<br />$template->assign("name", "iseagold");<br />$template->assign("china", "中国");<br />$template->assign("provice", "广东省");<br />$template->assign("city", "深圳市");<br />$template->assign("no", "页面不存在,未取出的变量");<br />$template->replace();<br />$template->display();<br />?><br /><br /><br />
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