Experience sharing of template engine development for PHP MVC pattern

/* * Class: Template parsing Class * AUTHOR:51JS.COM-ZMM * date:2011.3.1 * email:304924248@qq.com * blog:http://www.cnblogs.com/cnzmm/ * link:http://bbs.it-home.org */ Class Template { Public $html, $vars, $bTag, $eTag; Public $bFlag = ' {', $eFlag = '} ', $pfix = ' zmm: '; Private $folder, $file; function __construct ($vars =array ()) { !empty ($vars) && $this->vars = $vars; !empty ($GLOBALS [' Cfg_tag_prefix ']) && $this->pfix = $GLOBALS [' Cfg_tag_prefix ']. ': '; $this->btag = $this->bflag. $this->pfix; $this->etag = $this->bflag. ' \ '. $this->pfix; Empty (Tags:: $vars) && Tags:: $vars = & $this->vars; } Public Function Loadtpl ($TPL) { $this->file = $this->gettplpath ($TPL); Tags:: $file = & $this->file; if (Is_file ($this->file)) { if ($this->gettplhtml ()) { $this->settpltags (); } else { Exit (' template file failed to load! '); } } else { Exit (' template file ['. $this->file. '] does not exist! '); } } Private Function Gettplpath ($TPL) { $this->folder = Website_dirroot. $GLOBALS [' Cfg_tpl_root ']; return $this->folder. ' /'. $tpl; } Private Function gettplhtml () { $html = self::fmttplhtml (file_get_contents ($this->file)); if (!empty ($html)) { $callFunc = Tags:: $prefix. ' Syntax '; $this->html = Tags:: $callFunc ($html, New Template ()); } else { Exit (' template file content is empty! '); } return true; } static public Function fmttplhtml ($html) { return Preg_replace ('/(\ r) | ( \ n) | (\ t) | (\s{2,})/is ', ', $html); } Public Function Register ($vars =array ()) { if (Is_array ($vars)) { $this->vars = $vars; Tags:: $vars = & $this->vars; } } Public Function Display ($bool =false, $name = "", $time =0) { if (!empty ($this->html)) { if ($bool &&!empty ($name)) { if (!is_int ($time)) $time = 600; $cache = new cache ($time); $cache->set ($name, $this->html); } Echo $this->html; Flush (); } else { Exit (' template file content is empty! '); } } Public Function Setassign ($souc, $info) { if (!empty ($this->html)) { $this->html = Str_ireplace ($souc, self::fmttplhtml ($info), $this->html); } else { Exit (' template file content is empty! '); } } Private Function Settpltags () { $this->setpaneltags (); $this->settrunktags (); $this->reghatchvars (); } Private Function Setpaneltags () { $rule = $this->btag. ' ([^ '. $this->eflag. '] +) \/'. $this->eflag; Preg_match_all ('/'. $rule. ' /ism ', $this->html, $out _matches); $this->transtag ($out _matches, ' Panel '); unset ($out _matches); } Private Function Settrunktags () { $rule = $this->btag. ' (\w+) \s* ([^ '. $this->eflag.] *?)'. $this->eflag. '((?:(?!'. $this->btag. ') [\s\s]*?| (? R)) '. $this->etag. ' \\1\s* '. $this->eflag; Preg_match_all ('/'. $rule. ' /ism ', $this->html, $out _matches); $this->transtag ($out _matches, ' trunk '); unset ($out _matches); } Private Function Transtag ($result, $type) { if (!empty ($result [0])) { Switch ($type) { Case ' Panel ': { for ($i = 0; $i < count ($result [0]); $i + +) { $strTag = Explode ("', $result [1][$i], 2); if (Strpos ($strTag [0], '. ')) { $itemArg = Explode ('. ', $result [1][$i], 2); $callFunc = Tags:: $prefix. Ucfirst ($itemArg [0]); if (method_exists (' Tags ', $callFunc)) { $html = Tags:: $callFunc (Chop ($ITEMARG [1]); if ($html!== false) { $this->html = Str_ireplace ($result [0][$i], $html, $this->html); } } } else { $rule = ' ^ ([^\s]+) \s* ([\s\s]+) $ '; Preg_match_all ('/'. $rule. ' /is ', Trim ($result [1][$i]), $tmp _matches); $callFunc = Tags:: $prefix. Ucfirst ($tmp _matches[1][0]); if (method_exists (' Tags ', $callFunc)) { $html = Tags:: $callFunc ($tmp _matches[2][0]); if ($html!== false) { $this->html = Str_ireplace ($result [0][$i], $html, $this->html); } } unset ($tmp _matches); } } break; } Case ' trunk ': { for ($i = 0; $i < count ($result [0]); $i + +) { $callFunc = Tags:: $prefix. Ucfirst ($result [1][$i]); if (method_exists (' Tags ', $callFunc)) { $html = Tags:: $callFunc ($result [2][$i], $result [3][$i]); $this->html = Str_ireplace ($result [0][$i], $html, $this->html); } } break; } Default:break; } } else { return false; } } Private Function Reghatchvars () { $this->setpaneltags (); } function __destruct () {} } ?> Copy Code Second, the label resolution class : (temporarily provide data, list two kinds of labels analytic thinking) /* * Class: Tag parsing class * AUTHOR:51JS.COM-ZMM * date:2011.3.2 * email:304924248@qq.com * blog:http://www.cnblogs.com/cnzmm/ * link:http://bbs.it-home.org */ Class Tags { static private $attrs =null; Static public $file, $vars, $rule, $prefix = ' tag_ '; static public Function Tag_syntax ($html, $that) { $rule = $that->btag. ' If\s+ ([^ '. $that->eflag. ') +) \s* '. $that->eflag; $html = preg_replace ('/'. $rule. ' /ism ', ' , $html); $rule = $that->btag. ' Elseif\s+ ([^ '. $that->eflag. ') +) \s* '. $that->eflag; $html = preg_replace ('/'. $rule. ' /ism ', ' , $html); $rule = $that->btag. ' else\s* '. $that->eflag; $html = preg_replace ('/'. $rule. ' /ism ', ' , $html); $rule = $that->btag. ' loop\s+ (\s+) \s+ (\s+) \s* '. $that->eflag; $html = preg_replace ('/'. $rule. ' /ism ', ' , $html); $rule = $that->btag. ' loop\s+ (\s+) \s+ (\s+) \s+ (\s+) \s* '. $that->eflag; $html = preg_replace ('/'. $rule. ' /ism ', ' \\3 ') {?> ', $html); $rule = $that->etag. ' (if|loop) \s* '. $that->eflag; $html = preg_replace ('/'. $rule. ' /ism ', ' , $html); $rule = $that->btag. ' php\s* '. $that->eflag. ' ((?:(?!'. $that->btag. ') [\s\s]*?| (? R)) '. $that->etag. ' php\s* '. $that->eflag; $html = preg_replace ('/'. $rule. ' /ism ', ' , $html); Return Self::tag_execute ($html); } static public Function tag_list ($attr, $html) { if (!empty ($html)) { if (Self::tag_havetag ($html)) { Return Self::tag_dealtag ($attr, $html, true); } else { Return Self::tag_getdata ($attr, $html, true); } } else { Exit (' tag {list} ' is empty! '); } } static public Function Tag_data ($attr, $html) { if (!empty ($html)) { if (Self::tag_havetag ($html)) { Return Self::tag_dealtag ($attr, $html, false); } else { Return Self::tag_getdata ($attr, $html, false); } } else { Exit (' tag {data} ' is empty! '); } } static public Function Tag_execute ($html) { Ob_clean (); Ob_start (); if (!empty (self:: $vars)) { Is_array (self:: $vars) && Extract (self:: $vars, Extr_overwrite); } $file _inc = website_dirinc. ' /buffer/'. MD5 (Uniqid (rand (), true)). PHP '; if ($fp = fopen ($file _inc, ' XB ')) { Fwrite ($fp, $html); if (fclose ($fp)) { Include ($file _inc); $html = Ob_get_contents (); } unset ($FP); } else { Exit (' Template parsing file generation failed! '); } Ob_end_clean (); @unlink ($file _inc); return $html; } Static Private Function Tag_havetag ($html) { $bool _has = false; $tpl _ins = new Template (); Self:: $rule = $tpl _ins->btag. ' ([^ '. $tpl _ins->eflag. '] +) \/'. $TPL _ins->eflag; $bool _has = $bool _has | | Preg_match ('/'. Self:: $rule. ' /ism ', $html); Self:: $rule = $tpl _ins->btag. ' (\w+) \s* ([^ '. $tpl _ins->eflag.] *?)'. $tpl _ins->eflag. '((?:(?!'. $tpl _ins->btag. ') [\s\s]*?| (? R)) '. $tpl _ins->etag. ' \\1\s* '. $tpl _ins->eflag; $bool _has = $bool _has | | Preg_match ('/'. Self:: $rule. ' /ism ', $html); unset ($tpl _ins); return $bool _has; } Static Private Function Tag_dealtag ($attr, $html, $list) { Preg_match_all ('/'. Self:: $rule. ' /ism ', $html, $out _matches); if (!empty ($out _matches[0])) { $child _node = Array (); for ($i = 0; $i < count ($out _matches[0]); $i + +) { $child _node[] = $out _matches[3][$i]; $html = Str_ireplace ($out _matches[3][$i], ' {-->>child_node_ '. $i. ' <<--} ', $html); } $html = Self::tag_getdata ($attr, $html, $list); for ($i = 0; $i < count ($out _matches[0]); $i + +) { $html = Str_ireplace (' {-->>child_node_ '. $i. ' <<--} ', $child _node[$i], $html); } Preg_match_all ('/'. Self:: $rule. ' /ism ', $html, $tmp _matches); if (!empty ($tmp _matches[0])) { for ($i = 0; $i < count ($tmp _matches[0]); $i + +) { $callFunc = self:: $prefix. Ucfirst ($tmp _matches[1][$i]); if (method_exists (' Tags ', $callFunc)) { $temp = self:: $callFunc ($tmp _matches[2][$i], $tmp _matches[3][$i]); $html = Str_ireplace ($tmp _matches[0][$i], $temp, $html); } } } unset ($tmp _matches); } unset ($out _matches); return $html; } Static Private Function Tag_getdata ($attr, $html, $list =false) { if (!empty ($attr)) { $attr _ins = new ATTBT ($attr); $attr _arr = $attr _ins->attrs; if (Is_array ($attr _arr)) { Extract ($attr _arr, extr_overwrite); $source = table_name ($source, $column); $rule = ' \[field:\s* (\w+) \s* ([^\]]*?) \s*\/?] '; Preg_match_all ('/'. $rule. ' /is ', $html, $out _matches); $data _str = "; $data _ins = new Datasql (); $attr _where = $attr _order = "; if (!empty ($where)) { $where = Str_replace (', ', ' and ', $where); $attr _where = ' where '. $where; } if (!empty ($order)) { $attr _order = ' ORDER by '. $order; } else { $fed _name = "; $fed _ins = $data _ins->getfedneedle ($source); $fed _cnt = $data _ins->getfedcount ($fed _ins); for ($i = 0; $i < $fed _cnt; $i + +) { $fed _flag = $data _ins->getfedflag ($fed _ins, $i); if (Preg_match ('/auto_increment/ism ', $fed _flag)) { $fed _name = $data _ins->getfedname ($fed _ins, $i); Break } } if (!empty ($fed _name)) $attr _order = ' ORDER by '. $fed _name. ' Desc '; } if ($list = = True) { if (Empty ($source) && empty ($sql)) { Exit (' tag {list} must specify the Source property! '); } $attr _rows = $attr _page = "; if ($rows > 0) { $attr _rows = ' limit 0, '. $rows; } if (!empty ($sql)) { $data _sql = $sql; } else { $data _sql = ' select * from '. $source. ' `'. $attr _where. $attr _order. $attr _rows; } if ($pages = = ' true ' &&!empty ($size)) { $data _num = $data _ins->getrecnum ($data _sql); $page _cnt = ceil ($data _num/$size); Global $page; if (!isset ($page) | | $page < 1) $page = 1; if ($page > $page _cnt) $page = $page _cnt; $data _sql = ' select * from '. $source. ' ". $attr _where. $attr _order. ' Limit '. ($page-1) * $size. ', '. $size; $GLOBALS [' cfg_page_curr '] = $page; $GLOBALS [' cfg_page_prev '] = $page-1; $GLOBALS [' cfg_page_next '] = $page + 1; $GLOBALS [' cfg_page_nums '] = $page _cnt; if (function_exists (' List_pagelink ')) { $GLOBALS [' cfg_page_list '] = List_pagelink ($page, $page _cnt, 2); } } $data _idx = 0; $data _ret = $data _ins->sqlcmdexec ($data _sql); while ($row = $data _ins->getrecarr ($data _ret)) { if ($skip > 0 &&!empty ($flag)) { $data _idx! = 0 && $data _idx% $skip = = 0 && $data _str. = $flag; } $data _tmp = $html; $data _tmp = str_ireplace (' @idx ', $data _idx, $data _tmp); for ($i = 0; $i < count ($out _matches[0]); $i + +) { $data _tmp = str_ireplace ($out _matches[0][$i], $row [$out _matches[1][$i]], $data _tmp); } $data _str. = $data _tmp; $data _idx + +; } } else { if (empty ($source)) { Exit (' tag {data} must specify the Source property! '); } $data _sql = ' select * from '. $source. ". $attr _where. $attr _order; $row = $data _ins->getonerec ($data _sql); if (Is_array ($row)) { $data _tmp = $html; for ($i = 0; $i < count ($out _matches[0]); $i + +) { $data _val = $row [$out _matches[1][$i]; if (Empty ($out _matches[2][$i])) { $data _tmp = str_ireplace ($out _matches[0][$i], $data _val, $data _tmp); } else { $attr _str = $out _matches[2][$i]; $attr _ins = new ATTBT ($attr _str); $func _txt = $attr _ins->attrs[' function ']; if (!empty ($func _txt)) { $func _tmp = Explode (' (', $func _txt); if (Function_exists ($func _tmp[0])) { Eval (' $func _ret = '. Str_ireplace (' @me ', ' \ '. $data _val. ' \ ', $func _txt)); $data _tmp = str_ireplace ($out _matches[0][$i], $func _ret, $data _tmp); } else { Exit (' called a function that does not exist! '); } } else { Exit (' tag setting property is invalid! '); } } } $data _str. = $data _tmp; } } unset ($data _ins); return $data _str; } else { Exit (' tag setting property is invalid! '); } } else { Exit (' no tag attribute set! '); } } static public Function __callstatic ($name, $args) { Exit (' label {'. $name. '} does not exist! '); } } ?> Copy Code

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