默默简单的写了一个模板引擎
引擎文件
复制代码 代码如下:
<?php /** * 默默基于Discuz的模板引擎开发的OOP类模板引擎，可支持模板缓存并生成hash的md5值。由hash值来判断模板是否被修改，假如被修改则重新生成缓存文件，假如没有被修改，则直接调用缓存文件. * 版本:1.0.0.1 beta 测试版 */ class mmtp{ var $left_tags="{"; var $right_tags="}"; var $tp_suffix=".html"; var $cache_suffix=".tpl"; var $tp_dir="./"; var $cache_dir="./"; /** * 允许循环嵌套的次数，默认为5 * * @var unknown_type */ var $nest = 5; /** * 模板路径 * * @param unknown_type $tp_dir * @return mmtp */ function __setdir($tp_dir){ if(file_exists($tp_dir)){ $this->tp_dir=$tp_dir; }else{ $this->error("模板路径不存在"); } } /** * 设置缓存目录 * * @param unknown_type $cache_dir */ function __setcdir($cache_dir){ if(file_exists($cache_dir)){ $this->cache_dir=$cache_dir; }else{ $this->error("缓存路径不存在"); } } /** * 输出错误信息 * * @param unknown_type $msg */ function error($msg){ print "<div style=\"font-size:12px;color:red;\">".$msg."</div>"; } /** * 解析模板 * * @param unknown_type $file */ function tp($file){ $tp_path=$this->tp_dir.$file.$this->tp_suffix; $fp=fopen($tp_path,"rb"); if(!$this->file_test($tp_path,"r") && !$this->match_hash($file)){ $template=$this->file_read($tp_path); $var_regexp = "((\\\$[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)(\[[a-zA-Z0-9_\-\.\"\'\[\]\$\x7f-\xff]+\])*)"; $const_regexp = "([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)"; $template = preg_replace("/([\n\r]+)\t+/s", "\\1", $template); $template = preg_replace("/\<\!\-\-\{(.+?)\}\-\-\>/s", "{\\1}", $template); $template = preg_replace("/\{lang\s+(.+?)\}/ies", "languagevar('\\1')", $template); $template = str_replace("{LF}", "<?=\"\\n\"?>", $template); $template = preg_replace("/\{(\\\$[a-zA-Z0-9_\[\]\'\"\$\.\x7f-\xff]+)\}/s", "<?=\\1?>", $template); $template = preg_replace("/$var_regexp/es", "\$this->addquote('<?=\\1?>')", $template); $template = preg_replace("/\<\?\=\<\?\=$var_regexp\?\>\?\>/es", "\$this->addquote('<?=\\1?>')", $template); $template = preg_replace("/[\n\r\t]*\{template\s+([a-z0-9_]+)\}[\n\r\t]*/is", "\n<? include('".$this->cache_dir."\\1".$this->cache_suffix."'); ?>\n", $template); $template = preg_replace("/[\n\r\t]*\{template\s+(.+?)\}[\n\r\t]*/is", "\n<? include('".$this->cache_dir."\\1".$$this->cache_suffix."'); ?>\n", $template); $template = preg_replace("/[\n\r\t]*\{eval\s+(.+?)\}[\n\r\t]*/ies", "\$this->stripvtags('\n<? \\1 ?>\n','')", $template); $template = preg_replace("/[\n\r\t]*\{echo\s+(.+?)\}[\n\r\t]*/ies", "\$this->stripvtags('\n<? echo \\1; ?>\n','')", $template); $template = preg_replace("/[\n\r\t]*\{elseif\s+(.+?)\}[\n\r\t]*/ies", "\$this->stripvtags('\n<? } elseif(\\1) { ?>\n','')", $template); $template = preg_replace("/[\n\r\t]*\{else\}[\n\r\t]*/is", "\n<? } else { ?>\n", $template); for($i = 0; $i < $this->nest; $i++) { $template = preg_replace("/[\n\r\t]*\{loop\s+(\S+)\s+(\S+)\}[\n\r]*(.+?)[\n\r]*\{\/loop\}[\n\r\t]*/ies", "\$this->stripvtags('\n<? if(is_array(\\1)) { foreach(\\1 as \\2) { ?>','\n\\3\n<? } } ?>\n')", $template); $template = preg_replace("/[\n\r\t]*\{loop\s+(\S+)\s+(\S+)\s+(\S+)\}[\n\r\t]*(.+?)[\n\r\t]*\{\/loop\}[\n\r\t]*/ies", "\$this->stripvtags('\n<? if(is_array(\\1)) { foreach(\\1 as \\2 => \\3) { ?>','\n\\4\n<? } } ?>\n')", $template); $template = preg_replace("/[\n\r\t]*\{if\s+(.+?)\}[\n\r]*(.+?)[\n\r]*\{\/if\}[\n\r\t]*/ies", "\$this->stripvtags('\n<? if(\\1) { ?>','\n\\2\n<? } ?>\n')", $template); } $template = preg_replace("/\{$const_regexp\}/s", "<?=\\1?>", $template); $template = preg_replace("/ \?\>[\n\r]*\<\? /s", " ", $template); $hash=$this->file_hash($tp_path); $head_hash="<!-- hash=".$hash." -->"; $foot_time="<!-- time=".(date("Y-m-d G:i:s"))." -->"; $this->file_write($this->cache_dir.$file.".tpl",$head_hash.$template.$foot_time); } } /** * 检查文件是否存在并且有读取权限 * * @param unknown_type $path */ function file_test($path,$method){ if(!file_exists($path) || !fopen($path,$method)){ $this->error("模板文件不存在,或没有操作权限"); return false; } } /** * 读取文件内容 * * @param unknown_type $path * @return unknown */ function file_read($path,$length=0){ if(!$this->file_test($path,"r+")){ $fp=@fopen($path,"r+"); if($length==0){ $contents=@fread($fp,filesize($path)); }else{ $contents=@fread($fp,$length); } fclose($fp); return $contents; } } /** * 写入文件内容 * * @param unknown_type $path * @param unknown_type $puts */ function file_write($path,$puts){ if(!$this->file_test($path,"w+")){ $fp=@fopen($path,"w+"); @fwrite($fp,$puts); fclose($fp); } } /** * 计算文件的hash * * @param unknown_type $path * @return unknown */ function file_hash($path){ return md5_file($path); } /** * 对比模板文件与缓存文件的hash值 * * @param unknown_type $file * @return unknown */ function match_hash($file){ $read_hash=$this->file_read($this->cache_dir.$file.$this->cache_suffix,46); $html_hash=$this->file_hash($this->tp_dir.$file.$this->tp_suffix); if(preg_match("/".$html_hash."/i",$read_hash)){ return true; } } function addquote($var) { return str_replace("\\\"", "\"", preg_replace("/\[([a-zA-Z0-9_\-\.\x7f-\xff]+)\]/s", "['\\1']", $var)); } function transamp($str) { $str = str_replace('&', '&', $str); $str = str_replace('&', '&', $str); $str = str_replace('\"', '"', $str); return $str; } function stripvtags($expr, $statement) { $expr = str_replace("\\\"", "\"", preg_replace("/\<\?\=(\\\$.+?)\?\>/s", "\\1", $expr)); $statement = str_replace("\\\"", "\"", $statement); return $expr.$statement; } } $tp=new mmtp(); $tp->__setdir("./"); $tp->__setcdir("./cache/"); $tp->tp("index1"); $_GET[it]=sdhkadajksdhajdhkajsdhjkasdjkasdhasjdhkjsadhk; $name=2; $head="欢迎使用MoMo模板引擎"; include("./cache/index1.tpl"); ?>
模板index.html
复制代码 代码如下:
{$head}
模板index1.html
复制代码 代码如下:
{template index} {if $name==1} 你好 {else} 谢谢 {/if}
这个模板是默默今天下午写的,写的比较仓促,也许存在漏洞,这个版本只是测试版,以后我会逐渐的去完善,先发出来,当作一个前瞻.