默默简单的写了一个模板引擎
author:一佰互联 2019-05-01   click:145
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("/([]+) +/s", "\1", $template); 
                        $template = preg_replace("/<!--{(.+?)}-->/s", "{\1}", $template); 
                        $template = preg_replace("/{langs+(.+?)}/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);                           
                        $template = preg_replace("/[ ]*{templates+([a-z0-9_]+)}[ ]*/is", "<? include("".$this->cache_dir."\1".$this->cache_suffix.""); ?>", $template); 
                        $template = preg_replace("/[ ]*{templates+(.+?)}[ ]*/is", "<? include("".$this->cache_dir."\1".$$this->cache_suffix.""); ?>", $template); 
                        $template = preg_replace("/[ ]*{evals+(.+?)}[ ]*/ies", "$this->stripvtags("<? \1 ?>","")", $template); 
                        $template = preg_replace("/[ ]*{echos+(.+?)}[ ]*/ies", "$this->stripvtags("<? echo \1; ?>","")", $template); 
                        $template = preg_replace("/[ ]*{elseifs+(.+?)}[ ]*/ies", "$this->stripvtags("<? } elseif(\1) { ?>","")", $template); 
                        $template = preg_replace("/[ ]*{else}[ ]*/is", "<? } else { ?>", $template);                          for($i = 0; $i < $this->nest; $i++) { 
                        $template = preg_replace("/[ ]*{loops+(S+)s+(S+)}[]*(.+?)[]*{/loop}[ ]*/ies", "$this->stripvtags("<? if(is_array(\1)) { foreach(\1 as \2) { ?>","\3<? } } ?>")", $template); 
                        $template = preg_replace("/[ ]*{loops+(S+)s+(S+)s+(S+)}[ ]*(.+?)[ ]*{/loop}[ ]*/ies", "$this->stripvtags("<? if(is_array(\1)) { foreach(\1 as \2 => \3) { ?>","\4<? } } ?>")", $template); 
                        $template = preg_replace("/[ ]*{ifs+(.+?)}[]*(.+?)[]*{/if}[ ]*/ies", "$this->stripvtags("<? if(\1) { ?>","\2<? } ?>")", $template); 
                        }                          $template = preg_replace("/{$const_regexp}/s", "<?=\1?>", $template); 
                        $template = preg_replace("/ ?>[]*<? /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("&amp;", "&", $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.