PHP template parsing class instance _php tips

This example describes the PHP template parsing class. Share to everyone for your reference. as follows:

<?php class Template {Private $vars = array ();
 Private $conf = ';
 Private $TPL _name = ' index '; If the template does not exist, it finds the current Controller default index template private $tpl _suffix = '. html ';//If Config does not configure a default suffix, it displays private $tpl _compile_suffix= '. T pl.php '//compile template path private $template _tag_left = ' <{';//template left label private $template _tag_right = '}> ';//template right label private $te 
 Mplate_c = ';//compile directory private $template _path = '//template full path private $template _name = '//template name index.html//define the elements of each template's label
 Private $tag _foreach = Array (' From ', ' item ', ' key ');
  Private $tag _include = Array (' file ');//Currently only supports reading template default path public function __construct ($conf) {$this->conf = & $conf; $this->template_c = $this->conf[' template_config ' [' Template_c '];//compile directory $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 Regular * @param $content content * @return Array */Private Function Preg_match_all ($pattern, $content) {if
  (Empty ($pattern) | | empty ($content)) Core::show_error (' Find template tags failed! '); Preg_match_all ("/") $this->template_tag_left. $pattern. $this->template_tag_right. "
  /is ", $content, $match);
 return $match; /** * Template file suffix */Public Function Tpl_suffix () {$tpl _suffix = empty ($this->conf[' template_config '] [' Template_ 
       Suffix '])?
  $this->tpl_suffix: $this->conf[' template_config ' [' Template_suffix '];
 return $TPL _suffix;
 /** * Here does not explain * @return/Public Function assign ($key, $value) {$this->vars[$key] = $value;
  /** * Render Page * @param * Use Method 1 * $this->view->display (' Error ', ' comm/'); 
  * The default is to point to the TPL template's directory, so comm/is tpl/comm/error.html * Use Method 2 * $this->view->display (' ErrorFile '); * Default point to the Controller fixed folder * For example, your domain name is http://heartphp/admin/index, then the correct path is tpl/admin/index/errorfile.html * @return * * Public function display ($filename = ', $view _path = ') {$tpl _path_arr = $this->get_tpl ($filename, $view _path);//Get TPL complete Road
  Path and route to the pointer and name if (! $tpl _path_arr) Core::show_error ($filename. $this->_tpl_suffix. ' Template does not exist ');
 Compile start $this->view_path_param = $view _path;//user pass over the template and directory $this->compile (); /** * Compile controller * @param * @return/Private Function compile () {$filepath = $this->template_path. $this-&
  Gt;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, $vars _template_c_name
   //Parse if ($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; }/** * Reads the current project Profile/protected function Read_config () {if (File_exiSTS (system_path. ' conf/config.php ')) {@include system_path. ' conf/config.php ';
  return $config;
 return false; /** * Parse Template syntax * @param $str content * @param $compile _dirpath template compiled directory * @param $vars _template_c_name Templates compile file name * @retu  RN compiled PHP template filename * * Private function Template_replace ($str, $compile _dirpath, $vars _template_c_name) {if (empty ($STR)) Core::show_error (' template content is empty!
  '); Process the compilation header $compile _path = $compile _dirpath. $vars _template_c_name. $this->tpl_compile_suffix;//Compile file if (Is_file ($
   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). '
   <br/> '; echo $compile _filemtime. '
   = = '. Date (' y-m-d h:i:s ', $compile _filemtime); If the file is out-of-date compilation is also recompiled when the template label has include and is modified
   <{include file= "public/left.html"}> when modifying files in include, non-debug mode without changing the main file is not currently recompiling include files, I am thinking about whether to change, not think well, This is the case, so be sure to open the Debug=1 mode in the development phase or else modify the include file is invalid. A little wordy, do not know the statement clearly no if ($tpl _filemtime > $compile _filemtime | |
   DEBUG) {$ret _file = $this->compile_file ($vars _template_c_name, $str, $compile _dirpath);
   else {$ret _file = $compile _path;
  } else {//compilation file does not exist create him $ret _file = $this->compile_file ($vars _template_c_name, $str, $compile _dirpath);
 return $ret _file; /** * Template file Body * @param string $STR content * @return HTML/Private function Body_content ($STR) {//Parse $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; /** * Start parsing related template tags * @param $content template content/Private function parse ($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); 
  Template Label Common part $content = $this->parse_comm ($content);
  Switch to PHP code $content = $this->parse_php ($content);
 return $content; /** * echo if default direct <{$config [' domain ']}> to <?php echo $config [' domain ']?>/private function Parse_ech O ($content) {}/** * Convert to PHP * @param $content HTML Template content * @return HTML replace good HTML/private function parse_php (
  $content) {if (empty ($content)) return false; $content = Preg_replace ("/") $this->template_tag_left. " (.+?)". $this->template_tag_right. "
  /is "," <?php $?> ", $content);
 return $content; 
  /** * If judgment statement * <{if empty ($zhang)}> * Zhang * <{elseif empty ($liang)}> * Liang * <{else}> * Zhangliang * <{/if}> * Private Function parse_if ($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][$k], "<?php if ({$v}) {?>", $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][$k], "<?php} elseif ({$v}) {?>", $content);
  }return $content;
  /** * Parsing the include include tag is not a real-time update when the main file is updated to update the label content, so want to include the effective please modify the main file * record the time to develop a when the debug mode of each execution of the delete template compiled files * Use method <{include file= "www.phpddt.com"}> * @param $content Template content * @return HTML/Private function parse_in
  Clude ($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);
   $new _tag = Array ();
    Analysis element foreach ($a as $t) {$b = explode (' = ', $t); if (In_array ($b [0], $this->tag_include)) {if (!empty ($b [1])) {$new _tag[$b [0]] = str_replace ("\", "", $b [1])
     ;
     else {core::show_error (' template path does not exist! ');
   }} extract ($new _tag); Query template file foreach ($this->conf[' View_path ' as $v) {$conf _view_tpl = $v. $file;//include template file if (Is_file ($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);
    } else {core::show_error (' template file does not exist, please check the file carefully: '. $conf _view_tpl); } $content = Str_replace ($match [0][$match _key], ' <?php include ('. $include _file. ')?
  > ', $content);
 return $content; /** * Parse foreach * use method <{foreach from= $lists item=value key=kk}> * @param $content Template content * @return HTML solution
  The content of the analysis * * Private Function Parse_foreach ($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)) {//filter label does not exist filter $new _tag[$a [0]] = $a [1];
   }} $key = ';
   Extract ($new _tag); $key = ($key)?
   ' $ '. $key. ' => ': '; $s = ' <?php foreach ('. $from. $key. ' $item. ')
   {?> ';
  $content = $this->str_replace ($match [0][$match _key], $s, $content);
 return $content; /** * Match End String */Private Function Parse_comm ($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 ("<?php}?>", "<?php}?>", "<?php} else {?>");
  $content = Preg_replace ($search, $replace, $content);
 return $content; /** * Check compilation directory if not created then recursively create directory * @param string $path file full path * @return template content/Private function Check_temp_compile
  () {//$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; /** * Read file * @param string $path file full path * @return Template content * * Private function Read_file ($path) {//$this->che
  Ck_file_limits ($path, ' R '); if ($r = @fopen ($path, ' r ') = = False) {core::show_error (' stencil file does not have read or Execute permissions, please check!)
  ');
  $content = Fread ($r, FileSize ($path));
  Fclose ($R);
 return $content;
/** * Write file * @param string $filename filename * @param string $content template content * @return filename  * * Private Function Compile_file ($filename, $content, $dir) {if (empty ($filename)) Core::show_error ("{$filename} Crea
  tion failed ");
  $content = $this->body_content ($content)//To the file content Operation//echo ' started compiling ===== ';
  $f = $dir. $filename. $this->tpl_compile_suffix;
  $this->check_file_limits ($f, ' w ');
  if ($fp = @fopen ($f, ' wb ') = = False) {Core::show_error ($f. ' <br/> compile file failed, check file permissions. ');
  //Open flock flock ($fp, LOCK_EX + lock_nb);
  Fwrite ($fp, $content, strlen ($content));
  Flock ($fp, Lock_un + lock_nb);
  Fclose ($FP);
 return $f; /** * This check file permission function is temporarily discarded * @param [$path] [path] * @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}<br/> does not have write permission, please check.");
  } elseif (!is_readable ($path) && $status = = ' R ') {Core::show_error ("{$path}<br/> does not have Read permission, check."); } elseif ($status = = ' rw ') {//check WirtE and read if (!is_writable ($path) | |!is_readable ($path)) {Core::show_error ("{$path}<br/> does not have write or Read permissions, please check");  
  }}/** * Reads the first line of the compiled template and analyzes the array * @param string $filepath file path * @param number $line rows * @return Returns a string of the specified number of rows
   */* Private Function Get_compile_header ($filepath, $line = 0) {if ($file _arr = @file ($filepath)) = = False) { Core::show_error ($filepath. ' <br/> Read file failed, please check file permissions!
  ');
 return $file _arr[0]; * * */** * Analysis of the date of the header annotation * @param string $cotnent compile file header first line * @return return to the previous date/* Private Function Get_compile_ Header_comment ($content) {preg_match ("/\/\*" (. *?)
  \*\//", $content, $match); 
  if (!isset ($match [1]) | | empty ($match [1])) core::show_error (' Compile error! ');
  $arr = Explode (' | ', $match [1]);
  $arr _date = Explode (' # # ', $arr [0]);
 return $arr _date[1]; * */** * Get template full path and return existing file * @param string $filename filename * @param string $view _path template path * @return/pri vate function Get_tpl ($filename, $view _path) {Empty ($fIlename) && $filename = $this->tpl_name; Traverse template path foreach ($this->conf[' View_path '] as $path) {if ($view _path) {//Find file directly from TPL and directory $tpl _path = $path. $view _p
    Ath
   $view _file_path = $tpl _path. $filename. $this->_tpl_suffix; else {//According to directory, Controller, method start looking for file $view _file_path = ($tpl _path = $this->get_tpl_path ($path))? $tpl _path. $filename-&
   Gt;_tpl_suffix:exit (0); } if (Is_file ($view _file_path)) {//Transfer template path and template name to pointer $this->template_path = $TPL _path;//$this->template
    _name = $filename. $this->_tpl_suffix;
   return true;
   else {core::show_error ($filename. $this->_tpl_suffix. ' Template does not exist '); /** * Get template path * @param string $path home directory * @return URL D and M stitching path/Private Function get_tpl_path ($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 (' Get template path failed! '); Return $path. $newpath. '
 /'; /** * Create directory * @param string $path directory * @return/Private Function Create_dir ($path, $mode = 0777) {if (Is_di
  R ($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. ') <br/> failed to create directory, please check if you have Write permission!
    ');
   } chmod ($allpath, $mode);
   else {$newdir = $allpath;
 } return true;
  The Public Function __destruct () {$this->vars = null;
 $this->view_path_param = null; }
}

I hope this article will help you with your PHP programming.