Template class extracted from Kangsheng products (discuz)_PHP tutorial

/*template.class.php
@ Kangsheng Weibo Template Extraction Class I think this template is easy to use. Take some time to make it independently.by Lei Rijin
@ took a look at the ctt template. Is it similar to the phpcms template? ? ^_^ Hehe! ! !
@ Weibo http://weibo.com/lrjxgl
@ Good things are shared with everyone. If you have any questions about the extraction, please ask
@ The default template file is .htm
$tpl = new template ('skin',"default");
$tpl->objdir='tpp';
$tpl->rewrite=true;//Enabling rewrite requires server support
$tpl-> ;rewrite_rule=array(array("/index.php/"),array("index.html")); //rewrite rule
$tpl->assign("indexurl","index.php") ;
$tpl->assign("str","I am a string la la la");
$tpl->assign("ec","I was echoed out");
$tpl->assign("subhtml","{subtpl ttt} This is used to introduce a template file, this is to introduce ttt.htm");
$tpl->assign("a ",array('dasdasd'.'bbbbbbb','cccccccccccccc'));
$tpl->assign("i",1);
$tpl->display("index");
*/
if(!defined("CHARSET")) define("CHARSET","gb2312");//Character encoding
if(!defined("DIR_TPL")) define("DIR_TPL ","tpl");//Default template directory
if(!defined("DIR_DATA")) define("DIR_DATA","data");//Default data directory
if(!defined(" DEBUG")) define("DEBUG",0);//Default running mode
class template {
//note var
public $rewrite=false;//Whether to enable pseudo-static rewrite
public $rewrite_rule=array(); //Set pseudo-static rules
public $defaulttpldir;//Default template
public $tpldir;//Template directory
public $objdir;//Compilation cache directory
public $tplfile;//Template file
public $objfile;//Compile file
public $tplid=1;//Template number
public $currdir='default';//Current style directory
public $vars=array();//note variable table
public $removeblanks=false;//remove spaces
public $stdout='display';//output type
function __construct ($tplid, $currdir) {
$this->template($tplid, $currdir);
}
function template($tplid, $currdir) {
ob_start();
if(file_exists(DIR_TPL.'/'.$currdir)) {
$this->currdir = $currdir;
$this->tplid = $tplid;
} else {
$this->currdir = 'default';
$this->tplid = 1;
}
$this->defaulttpldir = DIR_TPL.'/default';
$ this->tpldir = DIR_TPL.'/'.$this->currdir;
$this->objdir = DIR_DATA.'/cache/tpl';
if(version_compare(PHP_VERSION, '5' ) == -1) {
register_shutdown_function(array(&$this, '__destruct'));
}
}
//note publlic
function assign($k, $v ) {
$this->vars[$k] = $v;
}
//note publlic
function display($file) {
extract($this-> vars, EXTR_SKIP);
include $this->getObj($file);
}
function getObj($file, $tpldir = '') {
$subdir = ($pos = strpos($file, '/')) === false ? '' : substr($file, 0, $pos);
$file = $subdir ? substr($file, $pos + 1) : $ file;
$this->tplfile = ($tpldir ? $tpldir : $this->tpldir).'/'.($subdir ? $subdir.'/' : '').$file.' .htm';
$this->objfile = $this->objdir.'/'.($tpldir ? '' : $this->tplid.'_').($subdir ? $subdir .'_' : '').$file.'.php';
//note default directory
if(@filemtime($this->tplfile) === FALSE) {
$ this->tplfile = $this->defaulttpldir.'/'.($subdir ? $subdir.'/' : '').$file.'.htm';
}
//note Determine whether the comparison is expired
if(!file_exists($this->objfile) || DEBUG && @filemtime($this->objfile) < filemtime($this->tplfile)) {
$ this->compile();
}
return $this->objfile;
}
function getTpl($file) {
$subdir = ($pos = strpos($ file, '/')) === false ? '' : substr($file, 0, $pos);
$file = $subdir ? substr($file, $pos + 1) : $file;
$tplfile = $this->tpldir.'/'.($subdir ? $subdir.'/' : '').$file.'.htm';
if(@filemtime($tplfile) === FALSE) {
$tplfile = $this->defaulttpldir.'/'.($subdir ? $subdir.'/' : '').$file.'.htm';
}
return $tplfile;
}
function compile() {
$var_regexp = "@?\$[a-zA-Z_]w*(?:[[w."'[] $]+])*";
$vtag_regexp = "";
$const_regexp = "{([w]+)}";
$template = file_get_contents($this->tplfile);
for($i = 1; $ i <= 3; $i++) {
if(strpos($template, '{subtpl') !== FALSE) {
if(DEBUG == 2) {
$template = str_replace( '{subtpl ', '{tpl ', $template);
} else {
$template = preg_replace("/[nrt]*{subtpls+([a-z0-9_:/]+)}[ nrt]*/ies", "file_get_contents($this->getTpl('\1'))", $template);
}
}
}
$remove = array(
'/(^|r|n)/*.+?(r|n)*/(r|n)/is',
'///note.+?(r|n)/i ',
'///debug.+?(r|n)/i',
'/(^|r|n)(s|t)+/',
'/(r |n)/',
);
$this->removeblanks && $template = preg_replace($remove, '', $template);
$template = preg_replace("//s", "{\1}", $template);
$template = preg_replace("/{($var_regexp)}/", "", $template);
$template = preg_replace("/{($const_regexp)}/", "", $template);
$template = preg_replace("/(?", $template);
$template = preg_replace("//ies", "$this->arrayindex('\1', '\2')", $template);
$template = preg_replace("/{{eval (.*?)}}/ies", "$this->stripvtag('')", $template);
$template = preg_replace("/{eval (.*?)}/ies", "$this->stripvtag('')", $template);
$template = preg_replace("/[nrt]*{echos+(.+?)}[nrt]*/ies", "$this->stripvtag('','')", $template);
$template = preg_replace("/{for (.*?)}/ies", "$this->stripvtag('')", $template);
$template = preg_replace("/{elseifs+(.+?)}/ies", "$this->stripvtag('')", $template);
for($i=0; $i<2; $i++) {
$template = preg_replace("/{loops+$vtag_regexps+$vtag_regexps+$vtag_regexp}(.+?){/loop}/ies", "$this->loopsection('\1', '\2', '\3', '\4')", $template);
$template = preg_replace("/{loops+$vtag_regexps+$vtag_regexp}(.+?){/loop}/ies", "$this->loopsection('\1', '', '\2', '\3')", $template);
}
$template = preg_replace("/{ifs+(.+?)}/ies", "$this->stripvtag('')", $template);
$template = preg_replace("/{tpls+(w+?)}/is", "getObj("\1");?>", $template);
$template = preg_replace("/{tpls+(.+?)}/ise", "$this->stripvtag('getObj("\1"); ?>')", $template);
$template = preg_replace("/{tmptpls+(w+?)}/is", "getObj("\1", $this->objdir);?>", $template);
$template = preg_replace("/{tmptpls+(.+?)}/ise", "$this->stripvtag('getObj("\1", $this->objdir); ?>')", $template);
$template = preg_replace("/{else}/is", "", $template);
$template = preg_replace("/{/if}/is", "", $template);
$template = preg_replace("/{/for}/is", "", $template);
$template = preg_replace("/$const_regexp/", "", $template);//note {else} 也符合常量格式，此处要注意先后顺序
$template = preg_replace("/(\$[a-zA-Z_]w+[)([a-zA-Z_]w+)]/i", "\1'\2']", $template);
$fp = fopen($this->objfile, 'w');
fwrite($fp, $template);
fclose($fp);
}
function arrayindex($name, $items) {
$items = preg_replace("/[([a-zA-Z_]w*)]/is", "['\1']", $items);
return "";
}
function stripvtag($s) {
$vtag_regexp = "";
return preg_replace("/$vtag_regexp/is", "\1", str_replace("\"", '"', $s));
}
function loopsection($arr, $k, $v, $statement) {
$arr = $this->stripvtag($arr);
$k = $this->stripvtag($k);
$v = $this->stripvtag($v);
$statement = str_replace("\"", '"', $statement);
return $k ? " $v) {?>$statement" : "$statement";
}
function __destruct() {
$content = ob_get_contents();
//处理 rewrite
if($this->rewrite) {
$arr=$this->rewrite_rule;
$s=$arr[0];
$e=$arr[1];
$content=preg_replace($s,$e,$content);
}
ob_end_clean();
echo $content;
}
}
$tpl = new template('skin',"default");
$tpl->objdir='tpp';
$tpl->rewrite=true;//开启rewrite 需要服务器支持
$tpl->rewrite_rule=array(array("/index.php/"),array("index.html")); //rewrite规则
$tpl->assign("indexurl","index.php");
$tpl->assign("str","我是字符串啦啦啦");
$tpl->assign("ec","我是被echo出来的");
$tpl->assign("subhtml","{subtpl ttt}这是用来引入一个模板文件的，这个就是引入ttt.htm");
$tpl->assign("a",array('dasdasd'.'bbbbbbb','cccccccccccccc'));
$tpl->assign("i",1);
$tpl->display("index");
?>

1 .String assignment:

{$str}


2. Array assignment:

{loop $a $v }{$v},{/loop}
or

{loop $a $key $val }{$val},{/loop}

3.{ $subhtml}

{subtpl ttt}

4. Originally I was {$indexurl } and now I have been turned into index.php

5. I can also echo

{echo $ec}

6. In fact, I can also add, subtract, multiply and divide 6*7*8
{echo 6*7*8;}
7. These are the commonly used ones, what else don’t you know