在上次发布的simplet类之后（http://bbs.phpchina.com/thread-85257-1-1.html），发现有很多缺陷，例如不支持多维数组，注释和没有缓存功能，这次我把这些功能都加进去了！！！
大家有兴趣的话，我下次出个教程，来谈谈我写这个类的一些思想和方法！！！支持的话可以跟贴支持我！
PHP代码:
simplet.class.php
<?php
class SimpleT {
private $t_vars;
private $templates_dir;
private $templates_c_dir;
private $cache;
private $cache_dir;
public function __construct() {
$this->templates_dir = './templates/';
$this->templates_c_dir = './templates_c/';
$this->cache = 0;
$this->cache_dir = './cache/';
}
public function setDir($dir, $type = 'template') {
if(is_dir($dir)) {
if($type == 'template')
$this->templates_dir = rtrim($dir, '/').'/';
elseif($type == 'template_c')
$this->templates_c_dir = rtrim($dir, '/').'/';
elseif($type == 'cache')
$this->cache_dir = rtrim($dir, '/').'/';
else
return false;
return true;
} else {
return false;
}
}
public function cache($time) {
if(is_numeric($time)) {
$this->cache = $time;
return true;
} else {
return false;
}
}
public function assign($var, $value = NULL) {
if (is_array($var)) {
foreach ($var as $key => $val) {
$this->t_vars[$key] = $val;
}
} else {
$this->t_vars[$var] = $value;
}
}
private function comp($filename) {
try {
if(!$fp = fopen($filename, 'r')) {
throw new Exception('Can not open ' . $filename);
}
$filesize = filesize($filename);
if($filesize <= 0) {
throw new Exception('The file size must > 0 ' );
}
$content = fread($fp, $filesize);
fclose($fp);
unset($fp);
$content = preg_replace("/<%=([$a-zA-Z0-9_]{1,})%>/","<?php echo \$$1 ;?>", $content);
$content = preg_replace("/<%([$a-zA-Z0-9_]{1,}).loop%>/", "<?php foreach(\$$1 as \$$1_key => \$$1_val) { ?>",$content);
$content = preg_replace("/<%([$a-zA-Z0-9_]{1,}).loop(([$a-zA-Z0-9_]{1,}))%>/", "<?php foreach(\$$1 as \$$2) { ?>", $content);
$content = preg_replace("/<%([$a-zA-Z0-9_]{1,}).loop(([$a-zA-Z0-9_]{1,}),([$a-zA-Z0-9_]{1,}))%>/", "<?php foreach(\$$1 as \$$2 => \$$3) { ?>", $content);
$content = preg_replace("/<%([$a-zA-Z0-9_]{1,}).key%>/", "<?php echo \$$1_key ;?>", $content);
$content = preg_replace("/<%([$a-zA-Z0-9_]{1,}).value%>/", "<?php echo \$$1_val ;?>", $content);
$content = preg_replace("/<%([$a-zA-Z0-9_]{1,})\?%>/", "<?php if(\$$1 == true) { ?>", $content);
$content = preg_replace("/<%end%>/","<?php } ?>", $content);
$content = preg_replace("/<%##common##%>([^<%##end##%>]{0,})<%##end##%>/", "<?phpn/* $1 */n?>", $content);
if (preg_match_all("/<%{([^(}%>)]{1,})}%>/", $content, $files)) {
$this->comp($this->templates_dir . $files[1][0]);
}
$content = preg_replace("/<%{([^(}%>)]{1,})}%>/", "<?php include '{$this->templates_c_dir}simplet_comp_$1.php'; ?>", $content);
echo $content;
$fp = fopen($this->templates_c_dir . 'simplet_comp_' . basename($filename) . '.php', 'w');
if(!fwrite($fp, $content)) {
throw new Exception('Can not write content in the ' . $filename);
}
fclose($fp);
} catch (Exception $e) {
echo $e->getMessage();
}
return true;
}
public function display($filename) {
$filename = $this->templates_dir . $filename;
if(!file_exists($filename)) {
return false;
}
$t_filename_c = $this->templates_c_dir . 'simplet_comp_' . basename($filename) .'.php';
if(!file_exists($t_filename_c) || filemtime($t_filename_c) < filemtime($filename)) {
$this->comp($filename);
}
if($this->cache > 0) {
$cache_file = $this->cache_dir . basename($filename);
if(!file_exists($cache_file) || (time() - filemtime($cache_file)) > $this->cache) {
ob_start();
foreach ($this->t_vars as $key => $val) {
$$key = $val;
}
include($t_filename_c);
$content = ob_get_contents();
ob_end_clean();
$fp = fopen($cache_file, 'w');
fwrite($fp, $content);
fclose($fp);
echo $content;
unset($content);
} else {
include($cache_file);
}
} else {
foreach ($this->t_vars as $key => $val) {
$$key = $val;
}
include($t_filename_c);
}
}
}
?>
PHP代码:
test.php
<?php
require_once('simplet.class.php');
$t = new SimpleT();
$t->cache(10);//开启cache功能，并且设置为过期时间为10秒
$t->assign('arrays', array(array('hello','world')));
$t->assign('condition',false);
$t->display('index.php');
?>
PHP代码:
index.php(模板文件，放在templates/文件夹里)
<%##common##%>
这里是注释
下面是多维数组循环
<%##end##%>
<%arrays.loop(value)%>
<%value.loop(name)%>
<%=name%>
<%end%>
<%end%>
<%##common##%>
下面是条件判断
<%##end##%>
<%condition?%>
<h1>Condition is true</h1>
<%end%>
<%##common##%>
下面是包含文件()
<%##end##%>
<%{filename.php}%>