PHP Template Parsing class

PHP Template Parsing class Class Template { Private $vars = Array (); Private $conf = '; Private $TPL _name = ' index ';//If the template does not exist, it will find the current Controller default index template Private $tpl _suffix = '. html ';//if config is not configured with a default suffix display Private $tpl _compile_suffix= '. tpl.php ';//compile template path Private $template _tag_left = ' <{';//template left label Private $template _tag_right = '}> ';//Template Right Tag Private $template _c = ";//Compile Directory Private $template _path = ";//Template full path Private $template _name = ";//Template name index.html The element that defines the label for each template Private $tag _foreach = Array (' From ', ' item ', ' key '); Private $tag _include = Array (' file ');//Currently only read template default path is supported Public function __construct ($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 tag 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 $TPL _suffix; } /** * not explained here. * @return */ Public function assign ($key, $value) { $this->vars[$key] = $value; } /** * Render Page * @param * How to use 1 * $this->view->display (' Error ', ' comm/'); * The default is to refer to the TPL template with the directory, so comm/is tpl/comm/error.html * How to use 2 * $this->view->display (' ErrorFile '); * Default point to Controller pinned folder * For example your domain name is http://heartphp/admin/index, then the correct path is tpl/admin/index/errorfile.html * @return */ Public function display ($filename = ', $view _path = ') { $tpl _path_arr = $this->get_tpl ($filename, $view _path);//Get the TPL full path and route the path and name to the pointer if (! $tpl _path_arr) Core::show_error ($filename. $this->_tpl_suffix. ' Template does not exist '); Compile start $this->view_path_param = $view templates and directories passed by _path;//users. $this->compile (); } /** * Compiler Controller * @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, $vars _template_c_name );//parsing if ($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; } } /** * Read the current project configuration file */ protected function Read_config () { if (file_exists (system_path. ' conf/config.php ')) { @include system_path. ' conf/config.php '; return $config; } return false; } /** * Parsing template syntax * @param $str Content * @param $compile _dirpath Template Compilation Directory * @param $vars _template_c_name template Compile file name * @return compiled php template file name */ Private Function Template_replace ($str, $compile _dirpath, $vars _template_c_name) { if (empty ($STR)) core::show_error (' template content is empty! '); Handling the compilation header $compile _path = $compile _dirpath. $vars _template_c_name. $this->tpl_compile_suffix;//Compiling files if (Is_file ($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 ', $compile _filemtime); If the file expires compiling when the template tag has an include and is modified also recompile <{include file= "public/left.html"}> when modifying the file in the include, non-debug mode if not change the main file is currently not recompiled the file in the include, I am considering whether to change, do not think well, For the time being, so be sure to turn on the debug=1 mode in the development phase or modify the include file to be invalid. A little wordy, I do not know the statement clearly if ($tpl _filemtime > $compile _filemtime | | DEBUG) { $ret _file = $this->compile_file ($vars _template_c_name, $str, $compile _dirpath); } else { $ret _file = $compile _path; } } else {//compile file does not exist create his $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) { Analytical $str = $this->parse ($STR); $header _comment = "Create on##". Time (). "| Compiled from## ". $this->template_path. $this->template_name; $content = " \r\n$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 section $content = $this->parse_comm ($content); Switch to PHP code $content = $this->parse_php ($content); return $content; } /** * echo If the default direct <{$config [' domain ']}> turns into */ Private Function Parse_echo ($content) { } /** * Convert to PHP * @param $content HTML template content * @return HTML to replace good HTML */ Private Function parse_php ($content) { if (empty ($content)) return false; $content = Preg_replace ("/". $this->template_tag_left. " (.+?)". $this->template_tag_right. " /is "," " , $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], " ", $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; } /** * Parsing the include include tag is not updated in real time when the main file updates the label content, so want to include the effective please modify the main file * Record a time to develop a debug mode when you execute a delete template compile file * How to use <{include file= "www.phpddt.com"}> * @param $content Template content * @return HTML */ Private Function Parse_include ($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); $new _tag = Array (); Analysis elements foreach ($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);//parsing Break } else { Core::show_error (' template file does not exist, please double check the file: '. $conf _view_tpl); } } $content = Str_replace ($match [0][$match _key], " , $content); } return $content; } /** * Parsing foreach * How to use <{foreach from= $lists item=value key=kk}> * @param $content Template content * @return The content after parsing HTML */ Private Function Parse_foreach ($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)) {//Here Filter label does not exist filter $new _tag[$a [0]] = $a [1]; } } $key = "; Extract ($new _tag); $key = ($key)? ' $ '. $key. ' = ': '; $s = " ; $content = $this->str_replace ($match [0][$match _key], $s, $content); } return $content; } /** * Match End string */ Private Function Parse_comm ($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 ( " ", " ", " " ); $content = Preg_replace ($search, $replace, $content); return $content; } /** * Check compilation directory if not created, 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) { $this->check_file_limits ($path, ' R '); if ($r = @fopen ($path, ' r ') = = = = False) { Core::show_error (' template file does not have read or EXECUTE permission, please check! '); } $content = Fread ($r, FileSize ($path)); Fclose ($R); return $content; } /** * Write files * @param string $filename file name * @param string $content template content * @return File name */ Private Function Compile_file ($filename, $content, $dir) { if (empty ($filename)) Core::show_error ("{$filename} Creation failed"); $content = $this->body_content ($content);//operation on file contents Echo ' started compiling the ===== '; $f = $dir. $filename. $this->tpl_compile_suffix; $this->check_file_limits ($f, ' w '); if ($fp = @fopen ($f, ' wb ') = = = = False) { Core::show_error ($f. ' Failed to compile file, please check file permissions. '); } Open flock Flock ($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} No write permission, please check. "); } elseif (!is_readable ($path) && $status = = ' R ') { Core::show_error ("{$path} No Read permission, please check. "); } elseif ($status = = ' rw ') {//check wirte and read if (!is_writable ($path) | |!is_readable ($path)) { Core::show_error ("{$path} No write or Read permission, please check "); } } } /** * Read the first line of the compiled template and analyze the array * @param string $filepath file path * Number $line rows @param * @return A string that returns the specified number of rows */ /* Private Function Get_compile_header ($filepath, $line = 0) { if ($file _arr = @file ($filepath)) = = = = False) { Core::show_error ($filepath. ' Failed to read file, please check file permissions! '); } return $file _arr[0]; } */ /** * Analyze the date of the header comment * @param string $cotnent Compile the first line of the file header * @return return Last Date */ /* Private Function Get_compile_header_comment ($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 file name * @param string $view _path template path * @return */ Private Function Get_tpl ($filename, $view _path) { Empty ($filename) && $filename = $this->tpl_name; Traverse template Path foreach ($this->conf[' View_path ') as $path) { if ($view _path) {//Find files directly from the TPL and directory $tpl _path = $path. $view _path; $view _file_path = $tpl _path. $filename. $this->_tpl_suffix; } else {//based on directory, controller, method start looking for file $view _file_path = ($tpl _path = $this->get_tpl_path ($path))? $tpl _path. $filename. $this->_tpl_suffix:exit (0); } if (Is_file ($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 $path home directory * @return The stitching path of the URL D and M */ Private Function Get_tpl_path ($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 a directory * @param string $path directory * @return */ Private Function Create_dir ($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. ' Failed to create directory, please check if you have Write permission! '); } chmod ($allpath, $mode); } else { $newdir = $allpath; } } return true; } Public Function __destruct () { $this->vars = null; $this->view_path_param = null; } }; Copy Code

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