Home > Article > Backend Development > CodeIgniter uses phpcms template engine_PHP tutorial
CodeIgniter is very suitable for small site application development, but its built-in view function may cause trouble for front-end personnel who do not understand PHP. In comparison, the view template parsing of phpcms is much more powerful, so here we strip out the template parsing function of PHPCMS and add it to PHPCMS.
First add template_cache.php in CodeIgniter libraries
$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+(.+)\}/", "", $str );
$str = preg_replace ( "/\{include\s+(.+)\}/", "", $str );
$str = preg_replace ( "/\{view\s+(.+)\}/", "load->view(\\1); ?>", $str );
$str = preg_replace ( "/\{php\s+(.+)\}/", "", $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+(.+?)\}/", "", $str );
$str = preg_replace ( "/\{else\}/", "", $str );
$str = preg_replace ( "/\{elseif\s+(.+?)\}/", "", $str );
$str = preg_replace ( "/\{\/if\}/", "", $str );
//for 循环
$str = preg_replace("/\{for\s+(.+?)\}/","",$str);
$str = preg_replace("/\{\/for\}/","",$str);
//++ --
$str = preg_replace("/\{\+\+(.+?)\}/","",$str);
$str = preg_replace("/\{\-\-(.+?)\}/","",$str);
$str = preg_replace("/\{(.+?)\+\+\}/","",$str);
$str = preg_replace("/\{(.+?)\-\-\}/","",$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+)\}/", "", $str );
$str = preg_replace ( "/\{loop\s+(\S+)\s+(\S+)\s+(\S+)\}/", " \\3) { ?>", $str );
$str = preg_replace ( "/\{\/loop\}/", "", $str );
$str = preg_replace ( "/\{([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff:]*\(([^{}]*)\))\}/", "", $str );
$str = preg_replace ( "/\{\\$([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff:]*\(([^{}]*)\))\}/", "", $str );
$str = preg_replace ( "/\{(\\$[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)\}/", "", $str );
$str = preg_replace("/\{(\\$[a-zA-Z0-9_\[\]\'\"\$\x7f-\xff]+)\}/es", "\$this->addquote('')",$str);
$str = preg_replace ( "/\{([A-Z_\x7f-\xff][A-Z0-9_\x7f-\xff]*)\}/s", "", $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 = "" . $str;
return $str;
}
/**
* Escape // to /
*
* @param $var Escaped character
* @return Escaped character
*/
public function addquote($var) {
return str_replace ( "\"", """, preg_replace ( "/[([a-zA-Z0-9_-.x7f-xff]+)]/s", "['\1']", $var ) );
}
/**
* Parse PC tags
* @param string $op operation mode
* @param string $data parameters
* @param string $html All matched HTML codes
*/
public static function pc_tag($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 '';}?>';
}
/**
* Convert data to HTML code
* @param array $data array
*/
private static function arr_to_html($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;
}
/**
* Return the string or array processed by addslashes
* @param $string The string or array to be processed
* @return mixed
*/
function new_addslashes($string){
if(!is_array($string)) return addslashes($string);
foreach($string as $key => $val) $string[$key] = new_addslashes($val);
return $string;
}
}
if($return_full_path)
return $compiledtplfile;
else
return 'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template;
}
}