用了CodeIgniter框架几个月，之前一直习惯用phpcms 来做网站底层框架，后来发现在CodeIgniter 更加适合小站点应用开发，但是他自带的view功能，并不强大了，相反很吃力。 相比之下phpcms的view模板解析就强大多了，结合之前做的一个项目，特地将增强的代码copy出来。
在CodeIgniter libraries中 增加 template_cache.php
<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); /** * 模板解析缓存 */ final class template_cache { public $cache_path; public function __construct() { //$CI =& get_instance(); $this->cache_path = APPPATH.'views'; } /** * 编译模板 * * @param $module 模块名称 * @param $template 模板文件名 * @param $istag 是否为标签模板 * @return unknown */ public function template_compile($module, $template, $style = 'default') { $tplfile= APPPATH.'views'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.php'; if (! file_exists ( $tplfile )) { show_error($tplfile , 500 , 'Template does not exist(1)'); } $content = @file_get_contents ( $tplfile ); $filepath = $this->cache_path.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR; if(!is_dir($filepath)) { mkdir($filepath, 0777, true); } $compiledtplfile = $filepath.$template.'.php'; $content = $this->template_parse($content); $strlen = file_put_contents ( $compiledtplfile, $content ); chmod ( $compiledtplfile, 0777 ); return $strlen; } /** * 更新模板缓存 * * @param $tplfile 模板原文件路径 * @param $compiledtplfile 编译完成后，写入文件名 * @return $strlen 长度 */ public function template_refresh($tplfile, $compiledtplfile) { $str = @file_get_contents ($tplfile); $str = $this->template_parse ($str); $strlen = file_put_contents ($compiledtplfile, $str ); chmod ($compiledtplfile, 0777); return $strlen; } /** * 解析模板 * * @param $str 模板内容 * @return ture */ public function template_parse($str) { $str = preg_replace ( "/\{template\s+(.+)\}/", "<?php include template(\\1); ?>", $str ); $str = preg_replace ( "/\{include\s+(.+)\}/", "<?php include \\1; ?>", $str ); $str = preg_replace ( "/\{view\s+(.+)\}/", "<?php \$this->load->view(\\1); ?>", $str ); $str = preg_replace ( "/\{php\s+(.+)\}/", "<?php \\1?>", $str ); //alex fix $str = preg_replace ( "/\{{if\s+(.+?)\}}/", "``if \\1``", $str ); $str = preg_replace ( "/\{{else\}}/", "``else``", $str ); $str = preg_replace ( "/\{{\/if\}}/", "``/if``", $str ); $str = preg_replace ( "/\{if\s+(.+?)\}/", "<?php if(\\1) { ?>", $str ); $str = preg_replace ( "/\{else\}/", "<?php } else { ?>", $str ); $str = preg_replace ( "/\{elseif\s+(.+?)\}/", "<?php } elseif (\\1) { ?>", $str ); $str = preg_replace ( "/\{\/if\}/", "<?php } ?>", $str ); //for 循环 $str = preg_replace("/\{for\s+(.+?)\}/","<?php for(\\1) { ?>",$str); $str = preg_replace("/\{\/for\}/","<?php } ?>",$str); //++ -- $str = preg_replace("/\{\+\+(.+?)\}/","<?php ++\\1; ?>",$str); $str = preg_replace("/\{\-\-(.+?)\}/","<?php ++\\1; ?>",$str); $str = preg_replace("/\{(.+?)\+\+\}/","<?php \\1++; ?>",$str); $str = preg_replace("/\{(.+?)\-\-\}/","<?php \\1--; ?>",$str); //alex fix $str = preg_replace ( "/\``if\s+(.+?)\``/", "{{if \\1}}", $str ); $str = preg_replace ( "/\``else``/", "{{else}}", $str ); $str = preg_replace ( "/\``\/if\``/", "{{/if}}", $str ); $str = preg_replace ( "/\{loop\s+(\S+)\s+(\S+)\}/", "<?php \$n=1;if(is_array(\\1)) foreach(\\1 AS \\2) { ?>", $str ); $str = preg_replace ( "/\{loop\s+(\S+)\s+(\S+)\s+(\S+)\}/", "<?php \$n=1; if(is_array(\\1)) foreach(\\1 AS \\2 => \\3) { ?>", $str ); $str = preg_replace ( "/\{\/loop\}/", "<?php \$n++;}unset(\$n); ?>", $str ); $str = preg_replace ( "/\{([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff:]*\(([^{}]*)\))\}/", "<?php echo \\1;?>", $str ); $str = preg_replace ( "/\{\\$([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff:]*\(([^{}]*)\))\}/", "<?php echo \\1;?>", $str ); $str = preg_replace ( "/\{(\\$[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)\}/", "<?php echo \\1;?>", $str ); $str = preg_replace("/\{(\\$[a-zA-Z0-9_\[\]\'\"\$\x7f-\xff]+)\}/es", "\$this->addquote('<?php echo \\1;?>')",$str); $str = preg_replace ( "/\{([A-Z_\x7f-\xff][A-Z0-9_\x7f-\xff]*)\}/s", "<?php echo \\1;?>", $str ); $str = preg_replace("/\{pc:(\w+)\s+([^}]+)\}/ie", "self::pc_tag('$1','$2', '$0')", $str); $str = preg_replace("/\{\/pc\}/ie", "self::end_pc_tag()", $str); $str = "<?php defined('BASEPATH') or exit('No direct script access allowed.'); ?>" . $str; return $str; } /** * 转义 // 为 / * * @param $var 转义的字符 * @return 转义后的字符 */ public function addquote($var) { return str_replace ( "\\\"", "\"", preg_replace ( "/\[([a-zA-Z0-9_\-\.\x7f-\xff]+)\]/s", "['\\1']", $var ) ); } /** * 解析PC标签 * @param string $op 操作方式 * @param string $data 参数 * @param string $html 匹配到的所有的HTML代码 */ public static function pc_tag($op, $data, $html) { preg_match_all("/([a-z]+)\=[\"]?([^\"]+)[\"]?/i", stripslashes($data), $matches, PREG_SET_ORDER); $arr = array('action','num','cache','page', 'pagesize', 'urlrule', 'return', 'start','setpages'); $tools = array('json', 'xml', 'block', 'get'); $datas = array(); $tag_id = md5(stripslashes($html)); //可视化条件 $str_datas = 'op='.$op.'&tag_md5='.$tag_id; foreach ($matches as $v) { $str_datas .= $str_datas ? "&$v[1]=".($op == 'block' && strpos($v[2], '$') === 0 ? $v[2] : urlencode($v[2])) : "$v[1]=".(strpos($v[2], '$') === 0 ? $v[2] : urlencode($v[2])); if(in_array($v[1], $arr)) { $$v[1] = $v[2]; continue; } $datas[$v[1]] = $v[2]; } $str = ''; $setpages = isset($setpages) && intval($setpages) ? intval($setpages) : 10; $num = isset($num) && intval($num) ? intval($num) : 20; $cache = isset($cache) && intval($cache) ? intval($cache) : 0; $return = isset($return) && trim($return) ? trim($return) : 'data'; if (!isset($urlrule)) $urlrule = ''; if (!empty($cache) && !isset($page)) { $str .= '$tag_cache_name = md5(implode(\'&\','.self::arr_to_html($datas).').\''.$tag_id.'\');if(!$'.$return.' = tpl_cache($tag_cache_name,'.$cache.')){'; } if (in_array($op,$tools)) { switch ($op) { case 'json': if (isset($datas['url']) && !empty($datas['url'])) { $str .= '$json = @file_get_contents(\''.$datas['url'].'\');'; $str .= '$'.$return.' = json_decode($json, true);'; } break; case 'block': $str .= '$block_tag = pc_base::load_app_class(\'block_tag\', \'block\');'; $str .= 'echo $block_tag->pc_tag('.self::arr_to_html($datas).');'; break; } } else { if (!isset($action) || empty($action)) return false; if ( file_exists(APPPATH.'libraries'.DIRECTORY_SEPARATOR.$op.'_tag.php')) { $str .= 'if(!isset($CI))$CI =& get_instance();$CI->load->library("'.$op.'_tag");if (method_exists($CI->'.$op.'_tag, \''.$action.'\')) {'; if (isset($start) && intval($start)) { $datas['limit'] = intval($start).','.$num; } else { $datas['limit'] = $num; } if (isset($page)) { $str .= '$pagesize = '.$num.';'; $str .= '$page = intval('.$page.') ? intval('.$page.') : 1;if($page<=0){$page=1;}'; $str .= '$offset = ($page - 1) * $pagesize;$urlrule="'.$urlrule.'";'; $datas['limit'] = '$offset.",".$pagesize'; $datas['action'] = $action; $str .= '$'.$op.'_total = $CI->'.$op.'_tag->count('.self::arr_to_html($datas).');'; $str .= 'if($'.$op.'_total>$pagesize){ $pages = pages($'.$op.'_total, $page, $pagesize, $urlrule); } else { $pages="" ;}'; } $str .= '$'.$return.' = $CI->'.$op.'_tag->'.$action.'('.self::arr_to_html($datas).');'; $str .= '}'; } } if (!empty($cache) && !isset($page)) { $str .= 'if(!empty($'.$return.')){setcache($tag_cache_name, $'.$return.', \'tpl_data\');}'; $str .= '}'; } return "<"."?php ".$str."?".">"; } /** * PC标签结束 */ static private function end_pc_tag() { return '<?php if(defined(\'IN_ADMIN\') && !defined(\'HTML\')) {if(isset($data))unset($data);echo \'</div>\';}?>'; } /** * 转换数据为HTML代码 * @param array $data 数组 */ private static function arr_to_html($data) { if (is_array($data)) { $str = 'array('; foreach ($data as $key=>$val) { if (is_array($val)) { $str .= "'$key'=>".self::arr_to_html($val).","; } else { if (strpos($val, '$')===0) { $str .= "'$key'=>$val,"; } else { $str .= "'$key'=>'".self::new_addslashes($val)."',"; } } } return $str.')'; } return false; } /** * 返回经addslashes处理过的字符串或数组 * @param $string 需要处理的字符串或数组 * @return mixed */ function new_addslashes($string){ if(!is_array($string)) return addslashes($string); foreach($string as $key => $val) $string[$key] = new_addslashes($val); return $string; } }
然后在global_helper中增加一个 template函数
if ( ! function_exists('template')) { /** * 模板调用 * * @param $module * @param $template * @param $istag * @return unknown_type */ function template($module = 'expatree', $template = 'index', $style = 'expatree',$return_full_path=true) { global $CI; if(!isset($CI))$CI =& get_instance(); if(!$style) $style = 'default'; $CI->load->library('template_cache','template_cache'); $template_cache = $CI->template_cache; //编译模板生成地址 $compiledtplfile = $template_cache->cache_path.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.EXT; //视图文件 $tplfile= APPPATH.'views'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.EXT; if(file_exists($tplfile)) { if(!file_exists($compiledtplfile) || (@filemtime($tplfile) > @filemtime($compiledtplfile))) { $template_cache->template_compile($module, $template, $style); } } else { //如果没有就调取默认风格模板 $compiledtplfile = $template_cache->cache_path.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.EXT; if(!file_exists($compiledtplfile) || (file_exists($tplfile) && filemtime($tplfile) > filemtime($compiledtplfile))) { $template_cache->template_compile($module, $template, 'default'); } elseif (!file_exists($tplfile)) { show_error($tplfile , 500 , 'Template does not exist(0)'); } } if($return_full_path) return $compiledtplfile; else return 'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template; } }
然后在MY_Controller.php
增加一个方法
/** * 自动模板调用 * * @param $module * @param $template * @param $istag * @return unknown_type */ protected function view($view_file,$page_data=false,$cache=false) { $view_file=$this->template($this->page_data['controller_name'].$this->page_data['module_name'],$view_file); $this->load->view($view_file,$page_data); }
这样基本上完成了，可以直接phpcms 模板语法了
转截注明出处：http://www.cnblogs.com/hubj/archive/2012/05/18/2507453.html