php Smarty模板引擎 foreach循环
php Smarty模板引擎 foreach循环
模板文件：| 代码如下 | |
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>{$web_tile}</title> </head> <body> {$article_title} <br/> -- by {$author} <hr/> <br/> {$content} <br/> -- publish @ {$time} <br/> <br/> foreach test: {foreach ( from=url key=b item=c )} <a href="index.php?artcle_>{==c}</a> {/foreach} <br/> </body> </html> | |
解析引擎：
| 代码如下 | |
| // var $pattern_var = "/{$left_tag}$([wd]+){$right_tag}/"; $replace_var = '<?php echo $this->var_tpl_arr["$1"];?>'; if (preg_match($pattern_var, $content)) { $content = preg_replace($pattern_var, $replace_var, $content); } // foreach preg_match_all("/{$left_tag}foreachs+([^{]+?){$right_tag}/is", $content, $match_foreach); if (isset($match_foreach[1]) && is_array($match_foreach)) { foreach($match_foreach[1] as $match_key => $match_value) { $split_foreachs = array_filter(preg_split('/s+/is', $match_value)); $new_foreach_tag = array(); foreach($split_foreachs as $split_foreach) { $split = explode("=", $split_foreach); if (count($split == 2)) { if(in_array($split[0], array("from","item","key"))) { //过滤标签 不存在过滤 $new_foreach_tag[$split[0]] = $split[1]; } } } $from = $key = $item = ''; extract($new_foreach_tag); $key = ($key) ? '$'.$key.' =>' : '' ; $replace_foreach = '<?php foreach($this->var_tpl_arr["'.$from.'"] as '.$key.' $'.$item.') { ?>'; $content = str_replace($match_foreach[0][$match_key], $replace_foreach, $content); } } $pattern_foreach = "/{$left_tag}/foreach{$right_tag}/"; $replace_foreach = "<?php } ?>"; if (preg_match($pattern_foreach, $content)) { $content = preg_replace($pattern_foreach, $replace_foreach, $content); } // var in statement $pattern_var = "/{$left_tag}==([wd]+){$right_tag}/"; $replace_var = '<?php echo $$1;?>'; if (preg_match($pattern_var, $content)) { $content = preg_replace($pattern_var, $replace_var, $content); } | |
解析后：
| 代码如下 | |
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title><?php echo $this->var_tpl_arr["web_tile"];?></title> </head> <body> <?php echo $this->var_tpl_arr["article_title"];?> <br/> -- by <?php echo $this->var_tpl_arr["author"];?> <hr/> <br/> <?php echo $this->var_tpl_arr["content"];?> <br/> -- publish @ <?php echo $this->var_tpl_arr["time"];?> <br/> <br/> foreach test: <?php foreach($this->var_tpl_arr["url"] as $b => $c) { ?> <a href="index.php?artcle_><?php echo $c;?></a> <?php } ?> <br/> </body> </html> | |
使用：
| 代码如下 | |
<?php require_once 'core/YATP.class.php'; $app = new YATP(); date_default_timezone_set("Asia/Shanghai"); $app->is_cache = false; $article_title = "yet,it is a simple template engine"; $author = "sanwhiteyu@tencent.com"; $web_tile = "just test "; $content = "It is easy to write a simple template engine for yourself,what u can do is try to do it!"; $time = date("Y-m-d H:i:s",time()); $url = array( "url1"=>http://www.111cn.net, "url2"=>"http://www.baidu.com", ); $app->assign("article_title",$article_title); $app->assign("author",$author); $app->assign("web_tile",$web_tile); $app->assign("content",$content); $app->assign("time",$time); $app->assign("url",$url); $app->display("index.html"); | |
// end of script效果：
