PHP模板解析类
-
- class template {
- private $vars = array();
- private $conf = '';
- private $tpl_name = 'index';//如果模板不存在 会查找当前 controller默认index模板
- private $tpl_suffix = '.html';//如果CONFIG没配置默认后缀 则显示
- private $tpl_compile_suffix= '.tpl.php';//编译模板路径
- private $template_tag_left = ' private $template_tag_right = '}>';//模板右标签
- private $template_c = '';//编译目录
- private $template_path = '';//模板完整路径
- private $template_name = '';//模板名称 index.html
-
-
- //定义每个模板的标签的元素
- private $tag_foreach = array('from', 'item', 'key');
- private $tag_include = array('file');//目前只支持读取模板默认路径
-
- public function __construct($conf) {
- $this->conf = &$conf;
-
- $this->template_c = $this->conf['template_config']['template_c'];//编译目录
- $this->_tpl_suffix = $this->tpl_suffix();
- }
-
-
-
- private function str_replace($search, $replace, $content) {
- if(empty($search) || empty($replace) || empty($content)) return false;
- return str_replace($search, $replace, $content);
- }
-
- /**
- * preg_match_all
- * @param $pattern 正则
- * @param $content 内容
- * @return array
- */
-
- private function preg_match_all($pattern, $content) {
- if(empty($pattern) || empty($content)) core::show_error('查找模板标签失败!');
- preg_match_all("/".$this->template_tag_left.$pattern.$this->template_tag_right."/is", $content, $match);
- return $match;
- }
- /**
- * 模板文件后缀
- */
- public function tpl_suffix() {
- $tpl_suffix = empty($this->conf['template_config']['template_suffix']) ?
- $this->tpl_suffix :
- $this->conf['template_config']['template_suffix'] ;
- return $tpl_suffix;
- }
-
- /**
- * 此处不解释了
- * @return
- */
- public function assign($key, $value) {
- $this->vars[$key] = $value;
- }
-
- /**
- * 渲染页面
- * @param
- * 使用方法 1
- * $this->view->display('error', 'comm/');
- * 默认是指向TPL模版的跟目录,所以comm/就是 tpl/comm/error.html
- * 使用方法 2
- * $this->view->display('errorfile');
- * 默认指向控制器固定的文件夹
- * 例如你的域名是 http://heartphp/admin/index, 那么正确路径就是tpl/admin/index/errorfile.html
- * @return
- */
- public function display($filename = '', $view_path = '') {
- $tpl_path_arr = $this->get_tpl($filename, $view_path);//获取TPL完整路径 并且向指针传送路径以及名称
- if(!$tpl_path_arr) core::show_error($filename.$this->_tpl_suffix.'模板不存在');
-
- //编译开始
- $this->view_path_param = $view_path;//用户传递过来的模版跟目录
- $this->compile();
-
- }
-
- /**
- * 编译控制器
- * @param
- * @return
- */
- private function compile() {
- $filepath = $this->template_path.$this->template_name;
- $compile_dirpath = $this->check_temp_compile();
- $vars_template_c_name = str_replace($this->_tpl_suffix, '', $this->template_name);
-
-
- $include_file = $this->template_replace($this->read_file($filepath), $compile_dirpath, $vars_template_c_name);//解析
- if($include_file) {
- $this->read_config() && $config = $this->read_config();
- extract($this->vars, EXTR_SKIP);
- [url=home.php?mod=space&uid=48608]@include[/url] $include_file;
- }
- }
-
- /**
- * 读取当前项目配置文件
- */
- protected function read_config() {
- if(file_exists(SYSTEM_PATH.'conf/config.php')) {
- @include SYSTEM_PATH.'conf/config.php';
- return $config;
- }
-
- return false;
- }
- /**
- * 解析模板语法
- * @param $str 内容
- * @param $compile_dirpath 模版编译目录
- * @param $vars_template_c_name 模版编译文件名
- * @return 编译过的PHP模板文件名
- */
- private function template_replace($str, $compile_dirpath, $vars_template_c_name) {
- if(empty($str)) core::show_error('模板内容为空!');
-
- //处理编译头部
- $compile_path = $compile_dirpath.$vars_template_c_name.$this->tpl_compile_suffix;//编译文件
-
- if(is_file($compile_path)) {
- //$header_content = $this->get_compile_header($compile_path);
- //$compile_date = $this->get_compile_header_comment($header_content);
-
- $tpl_filemtime = filemtime($this->template_path.$this->template_name);
- $compile_filemtime = filemtime($compile_path);
-
- //echo $tpl_filemtime.'=='.date('Y-m-d H:i:s', $tpl_filemtime).'
';
- //echo $compile_filemtime.'=='.date('Y-m-d H:i:s', $compile_filemtime);
- //如果文件过期编译 当模板标签有include并且有修改时 也重新编译
- // 当修改include里的文件,非DEBUG模式时 如果不更改主文件 目前是不重新编译include里的文件,我在考虑是否也要更改,没想好,暂时这样,所以在开发阶段一定要开启DEBUG=1模式 要不然修改include文件无效 。 有点罗嗦,不知道表述清楚没
- if($tpl_filemtime > $compile_filemtime || DEBUG) {
- $ret_file = $this->compile_file($vars_template_c_name, $str, $compile_dirpath);
- } else {
- $ret_file = $compile_path;
- }
- } else {//编译文件不存在 创建他
- $ret_file = $this->compile_file($vars_template_c_name, $str, $compile_dirpath);
- }
-
- return $ret_file;
- }
-
-
- /**
- * 模板文件主体
- * @param string $str 内容
- * @return html
- */
- private function body_content($str) {
- //解析
- $str = $this->parse($str);
-
- $header_comment = "Create On##".time()."|Compiled from##".$this->template_path.$this->template_name;
- $content = " if(!defined('IS_HEARTPHP')) exit('Access Denied');/*{$header_comment}*/?>\r\n$str";
-
- return $content;
- }
-
- /**
- * 开始解析相关模板标签
- * @param $content 模板内容
- */
- private function parse($content) {
- //foreach
- $content = $this->parse_foreach($content);
-
- //include
- $content = $this->parse_include($content);
-
- //if
- $content = $this->parse_if($content);
-
- //elseif
- $content = $this->parse_elseif($content);
-
- //模板标签公用部分
- $content = $this->parse_comm($content);
-
- //转为php代码
- $content = $this->parse_php($content);
- return $content;
- }
-
- /**
- * echo 如果默认直接 转成
- */
- private function parse_echo($content) {
-
- }
-
- /**
- * 转换为PHP
- * @param $content html 模板内容
- * @return html 替换好的HTML
- */
- private function parse_php($content){
- if(empty($content)) return false;
- $content = preg_replace("/".$this->template_tag_left."(.+?)".$this->template_tag_right."/is", "", $content);
-
- return $content;
- }
- /**
- * if判断语句
- *
- * zhang
- *
- * liang
- *
- * zhangliang
- *
- */
- private function parse_if($content) {
- if(empty($content)) return false;
- //preg_match_all("/".$this->template_tag_left."if\s+(.*?)".$this->template_tag_right."/is", $content, $match);
-
- $match = $this->preg_match_all("if\s+(.*?)", $content);
- if(!isset($match[1]) || !is_array($match[1])) return $content;
-
- foreach($match[1] as $k => $v) {
- //$s = preg_split("/\s+/is", $v);
- //$s = array_filter($s);
- $content = str_replace($match[0][$k], "", $content);
- }
-
- return $content;
- }
-
- private function parse_elseif($content) {
- if(empty($content)) return false;
- //preg_match_all("/".$this->template_tag_left."elseif\s+(.*?)".$this->template_tag_right."/is", $content, $match);
- $match = $this->preg_match_all("elseif\s+(.*?)", $content);
- if(!isset($match[1]) || !is_array($match[1])) return $content;
-
- foreach($match[1] as $k => $v) {
- //$s = preg_split("/\s+/is", $v);
- //$s = array_filter($s);
- $content = str_replace($match[0][$k], "", $content);
- }
-
- return $content;
- }
- /**
- * 解析 include include标签不是实时更新的 当主体文件更新的时候 才更新标签内容,所以想include生效 请修改一下主体文件
- * 记录一下 有时间开发一个当DEBUG模式的时候 每次执行删除模版编译文件
- * 使用方法
- * @param $content 模板内容
- * @return html
- */
- private function parse_include($content) {
- if(empty($content)) return false;
-
- //preg_match_all("/".$this->template_tag_left."include\s+(.*?)".$this->template_tag_right."/is", $content, $match);
- $match = $this->preg_match_all("include\s+(.*?)", $content);
- if(!isset($match[1]) || !is_array($match[1])) return $content;
-
- foreach($match[1] as $match_key => $match_value) {
- $a = preg_split("/\s+/is", $match_value);
-
- $new_tag = array();
- //分析元素
- foreach($a as $t) {
- $b = explode('=', $t);
- if(in_array($b[0], $this->tag_include)) {
- if(!empty($b[1])) {
- $new_tag[$b[0]] = str_replace("\"", "", $b[1]);
- } else {
- core::show_error('模板路径不存在!');
- }
- }
- }
-
- extract($new_tag);
- //查询模板文件
- foreach($this->conf['view_path'] as $v){
- $conf_view_tpl = $v.$file;//include 模板文件
- if(is_file($conf_view_tpl)) {
- $c = $this->read_file($conf_view_tpl);
-
-
- $inc_file = str_replace($this->_tpl_suffix, '', basename($file));
-
- $this->view_path_param = dirname($file).'/';
- $compile_dirpath = $this->check_temp_compile();
-
- $include_file = $this->template_replace($c, $compile_dirpath, $inc_file);//解析
-
- break;
- } else {
- core::show_error('模板文件不存在,请仔细检查 文件:'. $conf_view_tpl);
- }
- }
-
- $content = str_replace($match[0][$match_key], '', $content);
- }
-
- return $content;
-
- }
- /**
- * 解析 foreach
- * 使用方法
- * @param $content 模板内容
- * @return html 解析后的内容
- */
- private function parse_foreach($content) {
- if(empty($content)) return false;
-
- //preg_match_all("/".$this->template_tag_left."foreach\s+(.*?)".$this->template_tag_right."/is", $content, $match);
- $match = $this->preg_match_all("foreach\s+(.*?)", $content);
- if(!isset($match[1]) || !is_array($match[1])) return $content;
-
- foreach($match[1] as $match_key => $value) {
-
- $split = preg_split("/\s+/is", $value);
- $split = array_filter($split);
-
- $new_tag = array();
- foreach($split as $v) {
- $a = explode("=", $v);
- if(in_array($a[0], $this->tag_foreach)) {//此处过滤标签 不存在过滤
- $new_tag[$a[0]] = $a[1];
- }
- }
- $key = '';
-
- extract($new_tag);
- $key = ($key) ? '$'.$key.' =>' : '' ;
- $s = '';
- $content = $this->str_replace($match[0][$match_key], $s, $content);
-
- }
-
- return $content;
- }
-
- /**
- * 匹配结束 字符串
- */
- private function parse_comm($content) {
- $search = array(
- "/".$this->template_tag_left."\/foreach".$this->template_tag_right."/is",
- "/".$this->template_tag_left."\/if".$this->template_tag_right."/is",
- "/".$this->template_tag_left."else".$this->template_tag_right."/is",
-
- );
-
- $replace = array(
- "",
- "",
- ""
- );
- $content = preg_replace($search, $replace, $content);
- return $content;
- }
- /**
- * 检查编译目录 如果没有创建 则递归创建目录
- * @param string $path 文件完整路径
- * @return 模板内容
- */
- private function check_temp_compile() {
- //$paht = $this->template_c.
-
- $tpl_path = ($this->view_path_param) ? $this->view_path_param : $this->get_tpl_path() ;
- $all_tpl_apth = $this->template_c.$tpl_path;
-
- if(!is_dir($all_tpl_apth)) {
- $this->create_dir($tpl_path);
- }
-
- return $all_tpl_apth;
- }
- /**
- * 读文件
- * @param string $path 文件完整路径
- * @return 模板内容
- */
- private function read_file($path) {
- //$this->check_file_limits($path, 'r');
-
- if(($r = @fopen($path, 'r')) === false) {
- core::show_error('模版文件没有读取或执行权限,请检查!');
- }
- $content = fread($r, filesize($path));
- fclose($r);
- return $content;
- }
-
- /**
- * 写文件
- * @param string $filename 文件名
- * @param string $content 模板内容
- * @return 文件名
- */
- private function compile_file($filename, $content, $dir) {
- if(empty($filename)) core::show_error("{$filename} Creation failed");
-
- $content = $this->body_content($content);//对文件内容操作
- //echo '开始编译了=====';
- $f = $dir.$filename.$this->tpl_compile_suffix;
-
- //$this->check_file_limits($f, 'w');
- if(($fp = @fopen($f, 'wb')) === false) {
- core::show_error($f.'
编译文件失败,请检查文件权限.');
- }
- //开启flock
- flock($fp, LOCK_EX + LOCK_NB);
- fwrite($fp, $content, strlen($content));
- flock($fp, LOCK_UN + LOCK_NB);
- fclose($fp);
-
- return $f;
- }
-
- /**
- * 这个检查文件权限函数 暂时废弃了
- * @param [$path] [路径]
- * @param [status] [w=write, r=read]
- */
- public function check_file_limits($path , $status = 'rw') {
- clearstatcache();
- if(!is_writable($path) && $status == 'w') {
- core::show_error("{$path}
没有写入权限,请检查.");
- } elseif(!is_readable($path) && $status == 'r') {
- core::show_error("{$path}
没有读取权限,请检查.");
- } elseif($status == 'rw') {//check wirte and read
- if(!is_writable($path) || !is_readable($path)) {
- core::show_error("{$path}
没有写入或读取权限,请检查");
- }
- }
-
-
- }
-
- /**
- * 读取编译后模板的第一行 并分析成数组
- * @param string $filepath 文件路径
- * @param number $line 行数
- * @return 返回指定行数的字符串
- */
- /*
- private function get_compile_header($filepath, $line = 0) {
-
- if(($file_arr = @file($filepath)) === false) {
- core::show_error($filepath.'
读取文件失败,请检查文件权限!');
- }
- return $file_arr[0];
- }
- */
-
- /**
- * 分析头部注释的日期
- * @param string $cotnent 编译文件头部第一行
- * @return 返回上一次日期
- */
- /*
- private function get_compile_header_comment($content) {
- preg_match("/\/\*(.*?)\*\//", $content, $match);
- if(!isset($match[1]) || empty($match[1])) core::show_error('编译错误!');
- $arr = explode('|', $match[1]);
- $arr_date = explode('##', $arr[0]);
-
- return $arr_date[1];
- }
- */
- /**
- * 获取模板完整路径 并返回已存在文件
- * @param string $filename 文件名
- * @param string $view_path 模板路径
- * @return
- */
- private function get_tpl($filename, $view_path) {
- empty($filename) && $filename = $this->tpl_name;
-
- //遍历模板路径
- foreach($this->conf['view_path'] as $path) {
- if($view_path) {//直接从tpl跟目录找文件
- $tpl_path = $path.$view_path;
- $view_file_path = $tpl_path.$filename.$this->_tpl_suffix;
- } else {//根据目录,控制器,方法开始找文件
- $view_file_path = ($tpl_path = $this->get_tpl_path($path)) ? $tpl_path.$filename.$this->_tpl_suffix : exit(0);
- }
-
- if(is_file($view_file_path)) {
- //向指针传送模板路径和模板名称
- $this->template_path = $tpl_path;//
- $this->template_name = $filename.$this->_tpl_suffix;
- return true;
- } else {
- core::show_error($filename.$this->_tpl_suffix.'模板不存在');
- }
- }
- }
-
- /**
- * 获取模板路径
- * @param string $path 主目录
- * @return URL D和M的拼接路径
- */
- private function get_tpl_path($path = '') {
- core::get_directory_name() && $path_arr[0] = core::get_directory_name();
- core::get_controller_name() && $path_arr[1] = core::get_controller_name();
- (is_array($path_arr)) ? $newpath = implode('/', $path_arr) : core::show_error('获取模板路径失败!') ;
-
- return $path.$newpath.'/';
- }
-
- /**
- * 创建目录
- * @param string $path 目录
- * @return
- */
- private function create_dir($path, $mode = 0777){
- if(is_dir($path)) return false;
-
- $dir_arr = explode('/', $path);
- $dir_arr = array_filter($dir_arr);
-
- $allpath = '';
- $newdir = $this->template_c;
-
- foreach($dir_arr as $dir) {
- $allpath = $newdir.'/'.$dir;
-
- if(!is_dir($allpath)) {
- $newdir = $allpath;
-
- if(!@mkdir($allpath, $mode)) {
- core::show_error( $allpath.'
创建目录失败,请检查是否有可都写权限!');
- }
- chmod($allpath, $mode);
- } else {
- $newdir = $allpath;
- }
- }
- return true;
- }
-
- public function __destruct(){
- $this->vars = null;
- $this->view_path_param = null;
- }
-
- };
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