Home > Article > Backend Development > A PHP template, mainly to reflect the idea_PHP tutorial
思路:
欲在速度和易用(主要指的是美工设计的方便性)之间取得一个平衡点.于是采用了由html文件生成php文件的办法(编译?)
也想在分离显示逻辑和分离html代码之间平衡一下
例如一个论坛首页(index.php):
代码: |
require('./template.php'); //由html生成的php文件的前缀,区别使用多种风格. $tpl_prefix = 'default'; //模板文件名 $tpl_index = 'index'; $tpl = new Template($tpl_prefix); $cats = array( array('forum_id'=>'1','forum_cat_id'=>'0','forum_name'=>'PHP学习'), array('forum_id'=>'2','forum_cat_id'=>'0','forum_name'=>'MYSQL学习') ); $forums = array( array('forum_id'=>'3','forum_cat_id'=>'1','forum_name'=>'PHP高级教程'), array('forum_id'=>'4','forum_cat_id'=>'1','forum_name'=>'PHP初级教程'), array('forum_id'=>'5','forum_cat_id'=>'2','forum_name'=>'MYSQL相关资料') ); if ($cats) { if ($tpl->chk_cache($tpl_index))//检查判断是否需要重新生产PHP模板文件. { $tpl->load_tpl($tpl_index);//加载html模板文件. //替换PHP语句 $tpl->assign_block("{block_cat}",""); $tpl->assign_block("{/block_cat}","}?>"); $tpl->assign_block("{block_forum}"," \nif(\$forum['forum_cat_id'] == \$cat['forum_id']) {?>"); $tpl->assign_block("{/block_forum}","}\n}?>"); //生产PHP模板文件. $tpl->write_cache($tpl_index); } } //包含PHP模板文件. include($tpl->parse_tpl($tpl_index)); ?> |
代码: | |||||||
{block_cat}
{/block_cat} |
代码: | |||||||
}?> |
Code: |
/***************************************************** ***************************** * ” ” ” ” ” ” Forum usage * * * ********************************** *************************************************/ class Template { //$this->$template, stores template data. var $template = ''; //Template path. var $tpl_path = ''; //Template prefix (style name). var $tpl_prefix = ''; //cache path (compiled path). var $cache_path = ''; //css file path. var $css_path = ' '; //header file path. var $header_path = ''; //footer file path var $footer_path = ''; /** * Initialize template path. */ function Template($root = 'default') { //Template prefix (style name). $this->tpl_prefix = $root ; //Template file path. $this->tpl_path = './templates/' . $root . '/'; //Generated PHP file storage path. $ this->cache_path = './template_data/' .$this->tpl_prefix . '_'; return true; } /** * chk_cache, check whether the "compiled" template needs to be updated. Judgment basis: last modification time, whether the "compiled" file exists. */ function chk_cache($tpl_index) { $tpl_file = $this->tpl_path . $tpl_index . '.html'; $cache_file = $this->cache_path . $tpl_index . '. php'; //Determine whether it needs to be updated. if(!file_exists($cache_file)) { } return true; } elseif(filemtime($tpl_file) & gt ; filemtime($cache_file)) { ='') { return $this->cache_path . $tpl_index . '.php'; } /** * Output template file. */ function load_tpl ($tpl_index) { $tpl_file = $this->tpl_path . $tpl_index . '.html'; $fp = fopen($tpl_file, 'r'); $this ->template = fread($fp, filesize($tpl_file)); fclose($fp); } /** * Load template file. */ function write_cache( $tpl_index) { $cache_file = $this->cache_path . $tpl_index . '.php'; //Variable display. $this-> template = preg_replace("/({=)(.+?)(})/is", "=\2?>", $this->template); // Interface language replacement. $this->template = preg_replace("/{lang +(.+?)}/ies", "$lang['main']['\1']", $this- >template); $fp = fopen($cache_file, 'w'); flock($fp, 3); fwrite($fp, $this->template) ; fclose($fp); } /** * Replace block. */ function assign_block($search,$replace) { $this->template = str_replace($search,$replace,$this ->template); } } ?> |