最近接手一个web 产品,用php写的,发现里面使用了模板引擎从uchome 这类产品中抽取出来的。这个模板引擎的特点非常让我喜欢,简洁不冗余,原理简单明了。在以后的项目中真的可以考虑使用此类小巧而精致的模板引擎。
1). 调用模板(记得先引入2的文件)
include_once template("test"); // 模板的名字 test
2). 模板调用逻辑
//模板调用
function template($name) {
global $_sconfig, $_sglobal, $_sc;
if ($_sglobal['mobile']) {
$objfile = s_root . './api/mobile/tpl_' . $name . '.php';
if (!file_exists($objfile)) {
showmessage('m_function_is_disable_on_wap');
}
} else {
if (strexists($name, '/')) {
$tpl = $name;
} else {
$tpl = "template/$_sconfig[template]/$name";
}
$objfile = s_root . './data/tpl_cache/' . str_replace('/', '_', $tpl) . '.php';
if ('1' === $_sc['debug']) {
include_once(s_root . './core/function_template.php');
parse_template($tpl);
} else {
if (!file_exists($objfile)) {
include_once(s_root . './core/function_template.php');
parse_template($tpl);
}
}
}
return $objfile;
}
//子模板更新检查
function subtplcheck($subfiles, $mktime, $tpl) {
global $_sc, $_sconfig;
if ($_sc['tplrefresh'] && ($_sc['tplrefresh'] == 1 || mt_rand(1, $_sc['tplrefresh']) == 1)) {
$subfiles = explode('|', $subfiles);
foreach ($subfiles as $subfile) {
$tplfile = s_root . './' . $subfile . '.htm';
if (!file_exists($tplfile)) {
$tplfile = str_replace('/' . $_sconfig['template'] . '/', '/default/', $tplfile);
}
@$submktime = filemtime($tplfile);
if ($submktime > $mktime) {
include_once(s_root . './source/function_template.php');
parse_template($tpl);
break;
}
}
}
}
3).模板解析函数
if(!defined('in_uchome')) {
exit('access denied');
}
$_sglobal['i'] = 0;
$_sglobal['block_search'] = $_sglobal['block_replace'] = array();
function parse_template($tpl) {
global $_sglobal, $_sc, $_sconfig;
//yoho:用配置变量替换默认模板
$newtpl = empty($_sconfig['yoho_'.$tpl.'_template']) ? $tpl : $_sconfig['yoho_'.$tpl.'_template'];
//包含模板
$_sglobal['sub_tpls'] = array($newtpl);
$tplfile = s_root.'./'.$newtpl.'.htm';
$objfile = s_root.'./data/tpl_cache/'.str_replace('/','_',$newtpl).'.php';
//read
if(!file_exists($tplfile)) {
$tplfile = str_replace('/'.$_sconfig['template'].'/', '/default/', $tplfile);
}
$template = sreadfile($tplfile);
if(empty($template)) {
exit("template file : $tplfile not found or have no access!");
}
//模板
$template = preg_replace("/\<\!\-\-\{template\s ([a-z0-9_\/] )\}\-\-\>/ie", "readtemplate('\\1')", $template);
//处理子页面中的代码
$template = preg_replace("/\<\!\-\-\{template\s ([a-z0-9_\/] )\}\-\-\>/ie", "readtemplate('\\1')", $template);
//解析模块调用
$template = preg_replace("/\<\!\-\-\{block\/(. ?)\}\-\-\>/ie", "blocktags('\\1')", $template);
//解析广告
$template = preg_replace("/\<\!\-\-\{ad\/(. ?)\}\-\-\>/ie", "adtags('\\1')", $template);
//时间处理
$template = preg_replace("/\<\!\-\-\{date\((. ?)\)\}\-\-\>/ie", "datetags('\\1')", $template);
//头像处理
$template = preg_replace("/\<\!\-\-\{avatar\((. ?)\)\}\-\-\>/ie", "avatartags('\\1')", $template);
//php代码
$template = preg_replace("/\<\!\-\-\{eval\s (. ?)\s*\}\-\-\>/ies", "evaltags('\\1')", $template);
//开始处理
//变量
$var_regexp = "((\\\$[a-za-z_\x7f-\xff][a-za-z0-9_\x7f-\xff]*)(\[[a-za-z0-9_\-\.\"\'\[\]\$\x7f-\xff] \])*)";
$template = preg_replace("/\<\!\-\-\{(. ?)\}\-\-\>/s", "{\\1}", $template);
$template = preg_replace("/([\n\r] )\t /s", "\\1", $template);
$template = preg_replace("/(\\\$[a-za-z0-9_\[\]\'\"\$\x7f-\xff] )\.([a-za-z_\x7f-\xff][a-za-z0-9_\x7f-\xff]*)/s", "\\1['\\2']", $template);
$template = preg_replace("/\{(\\\$[a-za-z0-9_\[\]\'\"\$\.\x7f-\xff] )\}/s", "", $template);
$template = preg_replace("/$var_regexp/es", "addquote('')", $template);
$template = preg_replace("/\<\?\=\<\?\=$var_regexp\?\>\?\>/es", "addquote('')", $template);
//逻辑
$template = preg_replace("/\{elseif\s (. ?)\}/ies", "stripvtags('','')", $template);
$template = preg_replace("/\{else\}/is", "else { ?>", $template);
//循环
for($i = 0; $i < 6; $i ) {
$template = preg_replace("/\{loop\s (\s )\s (\s )\}(. ?)\{\/loop\}/ies", "stripvtags('','\\3')", $template);
$template = preg_replace("/\{loop\s (\s )\s (\s )\s (\s )\}(. ?)\{\/loop\}/ies", "stripvtags(' \\3) { ?>','\\4')", $template);
$template = preg_replace("/\{if\s (. ?)\}(. ?)\{\/if\}/ies", "stripvtags('','\\2')", $template);
}
//常量
$template = preg_replace("/\{([a-za-z_\x7f-\xff][a-za-z0-9_\x7f-\xff]*)\}/s", "", $template);
//替换
if(!empty($_sglobal['block_search'])) {
$template = str_replace($_sglobal['block_search'], $_sglobal['block_replace'], $template);
}
//换行
$template = preg_replace("/ \?\>[\n\r]*\<\? /s", " ", $template);
//附加处理
$template = $template."// echo debuginfo(); ?>";
$template = "implode('|', $_sglobal['sub_tpls'])."', '$_sglobal[timestamp]', '$tpl');?>$template";
//write
if(!swritefile($objfile, $template)) {
exit("file: $objfile can not be write!");
}
}
function addquote($var) {
return str_replace("\\\"", "\"", preg_replace("/\[([a-za-z0-9_\-\.\x7f-\xff] )\]/s", "['\\1']", $var));
}
function striptagquotes($expr) {
$expr = preg_replace("/\<\?\=(\\\$. ?)\?\>/s", "\\1", $expr);
$expr = str_replace("\\\"", "\"", preg_replace("/\[\'([a-za-z0-9_\-\.\x7f-\xff] )\'\]/s", "[\\1]", $expr));
return $expr;
}
function evaltags($php) {
global $_sglobal;
$_sglobal['i'] ;
$search = "";
$_sglobal['block_search'][$_sglobal['i']] = $search;
$_sglobal['block_replace'][$_sglobal['i']] = "$php)." ?>";
return $search;
}
function blocktags($parameter) {
global $_sglobal;
$_sglobal['i'] ;
$search = "";
$_sglobal['block_search'][$_sglobal['i']] = $search;
$_sglobal['block_replace'][$_sglobal['i']] = "$parameter\"); ?>";
return $search;
}
function adtags($pagetype) {
global $_sglobal;
$_sglobal['i'] ;
$search = "";
$_sglobal['block_search'][$_sglobal['i']] = $search;
$_sglobal['block_replace'][$_sglobal['i']] = "";
return $search;
}
function datetags($parameter) {
global $_sglobal;
$_sglobal['i'] ;
$search = "";
$_sglobal['block_search'][$_sglobal['i']] = $search;
$_sglobal['block_replace'][$_sglobal['i']] = "";
return $search;
}
function avatartags($parameter) {
global $_sglobal;
$_sglobal['i'] ;
$search = "";
$_sglobal['block_search'][$_sglobal['i']] = $search;
$_sglobal['block_replace'][$_sglobal['i']] = "";
return $search;
}
function stripvtags($expr, $statement='') {
$expr = str_replace("\\\"", "\"", preg_replace("/\<\?\=(\\\$. ?)\?\>/s", "\\1", $expr));
$statement = str_replace("\\\"", "\"", $statement);
return $expr.$statement;
}
function readtemplate($name) {
global $_sglobal, $_sconfig;
$tpl = strexists($name,'/')?$name:"template/$_sconfig[template]/$name";
$tplfile = s_root.'./'.$tpl.'.htm';
$_sglobal['sub_tpls'][] = $tpl;
if(!file_exists($tplfile)) {
$tplfile = str_replace('/'.$_sconfig['template'].'/', '/default/', $tplfile);
}
$content = sreadfile($tplfile);
return $content;
}
4).模板语法
在模板里面,是可以直接显示php的变量的,也可以使用if,else,循环等,模板解析函数会将这些变量替换成实际的变量值。
1.设置变量的值
表示将$_tpl['titles']变量设置为array(’日志’, ‘随便看看’);
2.变量的显示
直接写变量的名字 $_get[aa]
3.调用另外一个模板文件进来[模板里面再调用模板]
实际上相当于php中的
相当于template(”header”) 即解析/template/default/header.htm文件
4.条件判断 ,,类
相当于php的if,else,但一定要结束一个if语句
5.循环 类
相当于php的foreach($list $key=>$value)
6.在模板写php代码
posted on 2011-11-28 23:20
-274°c 阅读(3460)
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