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:
<?php
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}","<?foreach(\$cats as \$cat) {?>");
$tpl->assign_block("{/block_cat}","<?}?>");
$tpl->assign_block("{block_forum}","<?foreach(\$forums as \$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));
?>
对应的html模板文件(index.html):
代码:
{block_cat}
{=$cat['forum_name']} | |||||
{=$forum['forum_name']} |
经过处理,里面的{block_forum}{block_cat}标签被替换成PHP循环语句,用于显示数组种所有元素.
生成的PHP模板文件(default_index.php):
代码:
<?foreach($cats as $cat) {?>
=$cat['forum_name']?> | |||||
=$forum['forum_name']?> |
default_index.php被包含在index.php,这样就可以正常显示了.
这样,HTML模板文件可以用dw来进行修改美化,美工人员应该会方便一些.
template.php
代码:
<?php
/*****
模板类(Template)
最后修改时间:2004.4.07 本论坛使用
**/
class Template {
//$this->$template,储存模板数据.
var $template = '';
//模板路径.
var $tpl_path = '';
//模板前缀(风格名称).
var $tpl_prefix = '';
//cache路径(编译后的路径).
var $cache_path = '';
//css文件路径.
var $css_path = '';
//header文件路径.
var $header_path = '';
//footer文件路径
var $footer_path = '';
/**
/**
/**
/**
/**
替换变量,并且"编译"模板.
*/
function write_cache($tpl_index)
{
$cache_file = $this->cache_path . $tpl_index . '.php';
//变量显示.
$this->template = preg_replace("/(\{=)(.+?)(\})/is", "<?=\\2?>", $this->template);
//界面语言替换.
$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);
}
/**