PHP implements a simple template engine

The template engine is a solution that has been detached from the view layer and model.

First we create a new Template.class.php file.

  '. m ',//Set template file ' Templatedir ' + ' template/',//Set Template folder where ' compiledir ' = ' cache ', ' debug ' = + false,//set to store after compilation The directory ' cache_htm ' = true,//need to be compiled into a static HTML file ' Suffix_cache ' = '. htm ',//compiled file suffix ' cache_time ' =>2000,// How long does automatic Update ' Php_turn ' =>false,//support native PHP code ' cache_control ' = ' control.dat ',);p rivate $compileTool;//Compiler public $filename;//template file name private $value =array ();//value stack static private $instance = Null;public $debug = Array ();//debug Information public funct Ion __construct ($arrayConfig =array ()) {//returns the current UNIX timestamp and subtle number $this->debug[' begin '] = Microtime (true); $this->array Config = $arrayConfig + $this->arrayconfig; $this->getpath (); if (!is_dir ($this->arrayconfig[' Templatedir ']) {exit ("template isnt not Found");} if (!is_dir ($this->arrayconfig[' Compiledir ')) {mkdir ($this->arrayconfig[' Compiledir '],0770,true);} Include ("Compile.class.php");//$this->compiletool = new Compile;} /** path processing is absolute path */public function GetPath () {$this->arrayconfig[' templatedir '] = STRTR (RealpAth ($this->arrayconfig[' Templatedir '), ' \ \ ', '/'). ' /'; $this->arrayconfig[' compiledir ') = Strtr (Realpath ($this->arrayconfig[' Compiledir ']), ' \ \ ', '/'). ' /';} /*** Singleton mode Gets the instance of the template **/public static function getinstance () {if (Is_null (self:: $instance)) {self:: $instance = new Template () ;} Return self:: $instance;} Public Function Setconfig ($key, $value = null) {if (Is_array ($key)) {$this->arrayconfig = $key + $this->arrayconfig;} else{$this->arrayconfig[$key] = $value;}} Public Function getconfig ($key = null) {if ($key) {return $this->arrayconfig[$key];} Else{return $this->arrayconfig;}} /** injects a single variable **/public function assign ($key, $value) {$this->value[$key] = $value;} /** injects multiple variables **/public function Assignarray ($array) {if (Is_array ($array)) {foreach ($array as $k = $v) {$this->value[ $k] = $v;}}} /*** gets the path to the template file **/public function path () {return $this->arrayconfig[' Templatedir '). $this->filename. $this->a rrayconfig[' suffix ');} /*** need to cache **/public function Needcache () {return $this-> arrayconfig[' cache_htm ');} /*** if the cache file needs to be regenerated **/public function recache ($file) {$flag = false;//Generate cache file $cachefile = $this->arrayconfig[' Compiledir '].md5 (@ $filename). '. ' PHP ';//var_dump ($cacheFile); if ($this->arrayconfig[' cache_htm ']===true) {//Set Timeflag (Determine whether the current time-the last time the template file was modified) is less than the set cache time//if less than the return True$timeflag = (Times ()-@filemtime ($cacheFile)) < $this->arrayconfig [' Cache_time ']?true:false;//1, determine if the cache file exists,//2, whether the cache file has content//3, whether the time is within the set cache time if (!is_file ($cacheFile) && FileSize ($cacheFile) >1&& $timeFlag) {$flag = true;} else{$flag = false;}} return $flag;} /*** Display template **/public function Show ($file) {$this->filename = $file; if (!is_file ($this->path ())} {exit (' cannot find the corresponding template ') ;} $compileFile = $this->arrayconfig[' compiledir '). ' /'. MD5 (@ $filename). php '; $cacheFile = $this->arrayconfig[' compiledir '].md5 (@ $filename). HTM ';//echo $compileFile;//echo $cacheFile; if ($this->recache ($file) ===false) {$this->debug[' cached '] = ' False ';//var_dump ($compileFile); $this->compiletool = new ComPile ($this->path (), $compileFile, $this->arrayconfig), if ($this->needcache ()) {//need to cache Ob_start ();} The function imports variables from the array into the current symbol table extract ($this->value,extr_overwrite);//Determines whether the file exists, whether the resulting file is modified less than the template file modification time if (@is_file ($ Compilefile) | | Filemtime ($compileFile)
 
  Path ())) {$this->compiletool->vars = $this->value; $this->compiletool->compile ();//introduction file include $ Compilefile;} Else{include $compileFile;} if ($this->needcache ()) {//If a cache is required $message = ob_get_contents ();//Generate Cache file File_put_contents ($cacheFile, $message) ;}} else{//if the cache file time is less than the set time//Direct read cache file ReadFile ($cacheFile);//$this->debug[' cached '] = true;} $this->debug[' spend '] = Microtime (True)-$this->debug[' begin ']; $this->debug[' count '] = count ($this Value), $this->debug_info (),/*var_dump ($compileFile), Thisvar_dump ($this->path ()), if (!is_file ($compileFile  ) {mkdir ($this->arrayconfig[' Compiledir ')); Here if there is a need to judge $this->compiletool->compile ($this->path (), $compileFile); ReadFile ($compileFile);} Else{readfile ($compileFile);} */}/***debug Debug Functions **/public function Debug_info () {//$this->arrayconfig[' Debug ']=false;if ($this->arrayconfig[ ' Debug ']===true) {var_dump ($this); echo "program run Date", Date ("Y-m-d h:i:s"). "
  
"echo" Template parsing Time ", $this->debug[' spend '], ' s '."
  
The "; echo" template contains the number of tags, $this->debug[' count ']. "
  
"; echo" whether to use static cache ", $this->debug[' cached ']."
  
";//echo" template engine instance parameter ", Var_dump ($this->getconfig ());}} /****** Clear Cached file *****/public function clean ($path = null) {if ($path = null) {$path = $this->arrayconfig[' compiledir '];$ Path = Glob ($path. ' * '. $this->arrayconfig[' Suffix_cache '); the//glob function returns a match to the specified folder directory}else{$path = $this->arrayconfig[' Compiledir '). MD5 ($path). HTM '; foreach ((array) $path as $v) {//delete unlink ($v);}}}
 

Create a new Compile.class.php translation template file

 template = $template; $this->comfile = $compileFile; $this->content = file_get_contents ($template); if ($config [' Php_turn ']===false) {//echo "123";//$this->t_r[]= "";} echo "123";//Regular match {$xxx} format $this->t_p[]= "#\{\\$ ([a-za-z_\x7f-\xff][a-za-z0-9_\x7f-\xff]*) \}#"; $this->t_r[ ]="
 value[' \\1 '];? > ";} Public function compile () {$this->c_var2 ();//$this->c_staticfile ();//var_dump ($this); File_put_contents ($ This->comfile, $this->content);} Public Function C_var2 () {//replace {$xxx} with
 $this->content = preg_replace ($this->t_p, $this->t_r, $this->content);} Public Function C_staticfile () {$this->content =preg_replace (' #\{\! (. *?) \!\}# ', ', $this->content);} Public Function __set ($name, $value) {$this, $name = $value;} Public Function __get ($name) {return $this, $name;}}

Create a new test file test.php

 
  False, ' debug ' =>false); $tpl->assign (' data ', ' Hello World '); $tpl->show (' member ');//var_dump ($TPL, GetConfig ());

Template file member.m

Welcome
{$data}

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