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一个简单的模板类--编译型的(simplet类增强后)

来源:互联网  宽屏版  评论
2008-12-18 07:52:15

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]\$$1 ;?>", $content);

$content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.loop%>/", "<?php foreach($1]\$$1 as $1_key]\$$1_key => $1_val]\$$1_val) { ?>",$content);

$content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.loop\(([\$a-zA-Z0-9_]{1,})\)%>/", "<?php foreach($1]\$$1 as $2]\$$2) { ?>", $content);

$content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.loop\(([\$a-zA-Z0-9_]{1,}),([\$a-zA-Z0-9_]{1,})\)%>/", "<?php foreach($1]\$$1 as $2]\$$2 => $3]\$$3) { ?>", $content);

$content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.key%>/", "<?php echo $1_key]\$$1_key ;?>", $content);

$content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.value%>/", "<?php echo $1_val]\$$1_val ;?>", $content);

$content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\\?%>/", "<?php if($1]\$$1 == true) { ?>", $content);

$content = preg_replace("/<%end%>/","<?php } ?>", $content);

$content = preg_replace("/<%##common##%>([^<%##end##%>]{0,})<%##end##%>/", "<?php\n/* $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}%>

在上次发布的simplet类之后([url=http://bbs.phpchina.com/thread-85257-1-1.html]http://bbs.phpchina.com/thread-85257-1-1.html[/url]),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 [url=file://\\$$1]\\$$1[/url] ;?>", $content); $content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.loop%>/", "<?php foreach([url=file://\\$$1]\\$$1[/url] as [url=file://\\$$1_key]\\$$1_key[/url] => [url=file://\\$$1_val]\\$$1_val[/url]) { ?>",$content); $content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.loop\(([\$a-zA-Z0-9_]{1,})\)%>/", "<?php foreach([url=file://\\$$1]\\$$1[/url] as [url=file://\\$$2]\\$$2[/url]) { ?>", $content); $content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.loop\(([\$a-zA-Z0-9_]{1,}),([\$a-zA-Z0-9_]{1,})\)%>/", "<?php foreach([url=file://\\$$1]\\$$1[/url] as [url=file://\\$$2]\\$$2[/url] => [url=file://\\$$3]\\$$3[/url]) { ?>", $content); $content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.key%>/", "<?php echo [url=file://\\$$1_key]\\$$1_key[/url] ;?>", $content); $content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\.value%>/", "<?php echo [url=file://\\$$1_val]\\$$1_val[/url] ;?>", $content); $content = preg_replace("/<%([\$a-zA-Z0-9_]{1,})\\?%>/", "<?php if([url=file://\\$$1]\\$$1[/url] == true) { ?>", $content); $content = preg_replace("/<%end%>/","<?php } ?>", $content); $content = preg_replace("/<%##common##%>([^<%##end##%>]{0,})<%##end##%>/", "<?php\n/* $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}%>
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