PHP F函数代码示例

 function __construct($modelid, $catid = 0, $categorys = array())
 {
     $this->modelid = $modelid;
     $this->catid = $catid;
     $this->categorys = $categorys;
     $this->fields = F("Model_field_" . $modelid);
 }

 /**
  * 主页
  */
 public function friend()
 {
     //获取好友列表
     $mfriend_list = F('mfriend_list' . $this->qq['qq']);
     $mfriend_list = null;
     if (!unserialize($mfriend_list)) {
         $url = "http://r.cnc.qzone.qq.com/cgi-bin/tfriend/friend_mngfrd_get.cgi?uin=" . $this->qq['qq'] . "&rd=" . rand(1, 999) . "&g_tk=" . $this->qq['gtk'];
         $result = $this->sendToQq($url);
         $result = $this->filterCallback($result);
         $results = json_decode($result);
         F('mfriend_list' . $this->qq['qq'], serialize($results));
     } else {
         $results = unserialize($mfriend_list);
     }
     $datas = $results->items;
     $gpnames = $results->gpnames;
     //存储相关数据
     //F('fl_' . $this->qq['qq'], $results);
     $this->groud = $gpnames;
     //$this->autoZantask = F('zan_lock_' . $this->qq['qq']);
     //$this->autoCommtask = F('comm_lock_' . $this->qq['qq']);
     //设置cookie
     $this->assign("qq", $this->qq['qq']);
     $this->assign("groud", $gpnames);
     $this->assign("data", $datas);
     $this->display();
 }

 /**
  * 专辑分类
  * 如果用户传入了非默认field,order则直接查询数据库，所以不推荐传入这些参数
  * @param array $options 
  */
 public function cate($options)
 {
     $options['field'] = isset($options['field']) ? trim($options['field']) : '*';
     $options['where'] = isset($options['where']) ? trim($options['where']) : '';
     $options['num'] = isset($options['num']) ? intval($options['num']) : 0;
     $options['order'] = isset($options['order']) ? trim($options['order']) : 'ordid';
     if ($options['field'] != '*' || $options['where'] || $options['order'] != 'ordid') {
         $album_cate_mod = M('album_cate');
         $map = array('status' => '1');
         $select = $album_cate_mod->field($options['field']);
         //字段
         $options['where'] && ($map['_string'] = $options['where']);
         $select->where($map);
         //条件
         $options['num'] && $select->limit($options['num']);
         //个数
         $select->order($options['order']);
         //排序
         $data = $select->select();
     } else {
         //分类缓存
         if (false === ($cate_list = F('album_cate_list'))) {
             $cate_list = D('album_cate')->cate_cache();
         }
         $options['num'] && ($cate_list = array_slice($cate_list, 0, $options['num']));
         $data = $cate_list;
     }
     return $data;
 }

 public function __construct()
 {
     parent::__construct();
     $this->assign('controller', CONTROLLER_NAME);
     //读取配置信息
     $web_stting = F('setting');
     if ($web_stting === false) {
         $params = array();
         $list = M('Setting')->getField('name,value');
         foreach ($list as $key => $val) {
             $params[$key] = unserialize($val) ? unserialize($val) : $val;
         }
         F('setting', $params);
         $web_stting = F('setting');
     }
     $this->web_stting = $web_stting;
     //站点状态判断
     if ($this->web_stting['site_status'] != 1) {
         echo '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
         echo $this->web_stting['closed_reason'];
         exit;
     } else {
         $this->assign('seo', seo());
     }
     //检查登录
     /* session('member_id',null);
     		if(!session('member_id'))
     		{
     			$this->wx_auto_login(); //自动登录	
     		}
     		$this->mid = session('member_id'); */
     $this->mid = 10;
     $this->m_info = M('Member')->where('member_id=' . $this->mid)->find();
 }

 public function update_cache()
 {
     //获得表中的所有栏目数据
     $category = Data::tree($this->all(), 'cname');
     return F("category", $category);
     //file_put_contents()储存文件缓存
 }

 /**
  * 构造函数
  */
 public function __construct()
 {
     /**
      * 验证圈子是否开启
      */
     if (C('circle_isuse') != '1') {
         @header('location: ' . SHOP_SITE_URL);
         die;
     }
     /**
      * 读取通用、布局的语言包
      */
     Language::read('common');
     /**
      * 设置布局文件内容
      */
     Tpl::setLayout('circle_layout');
     /**
      * 查询是否是超管
      */
     $this->checkSuper();
     /**
      * 获取导航
      */
     Tpl::output('nav_list', ($nav = F('nav')) ? $nav : rkcache('nav', true, 'file'));
 }

function G()
{
    static $myvar = 4;
    echo "{$myvar} ";
    echo F();
    echo "{$myvar}";
}

 public function index()
 {
     //URL规则
     $urlrules = F('urlrules');
     $where = array();
     if (isset($_GET['tagid'])) {
         $where['tagid'] = array("EQ", (int) $this->_get("tagid"));
         $r = M("Tags")->where($where)->find();
         $where['tag'] = $r['tag'];
         unset($where['tagid']);
     } else {
         $where['tag'] = array("EQ", $this->_get("tag"));
     }
     $data = M("Tags")->where($where)->find();
     if (!$data) {
         $this->error("该Tag不存在！");
     }
     $this->assign($data);
     M("Tags")->where($where)->setInc("hits");
     M("Tags")->where($where)->save(array("lasthittime" => time()));
     $page = $this->_get(C("VAR_PAGE"));
     $this->assign("page", $page);
     $urlrules = $urlrules[CONFIG_TAGURL];
     define('URLRULE', str_replace('|', '~', str_replace(array('{$tag}', '{$tagid}'), array($this->_get('tag'), (int) $this->_get("tagid")), $urlrules)));
     $SEO = seo();
     //seo分配到模板
     $this->assign("SEO", $SEO);
     //把分页分配到模板
     $this->assign(C("VAR_PAGE"), $page);
     $this->display("Tags:tag");
 }

 /**
  * 系统初始化方法
  *
  * @access protected
  */
 protected function _initialize()
 {
     header("Content-type:text/html;charset=utf-8");
     Load('extend');
     $this->ajax = $this->IS_AJAX;
     $this->post = strtolower($_SERVER['REQUEST_METHOD']) == 'post';
     $this->ip = get_client_ip();
     $this->timestamp = time();
     $this->root_path = dirname($_SERVER['PHP_SELF']);
     $this->root_path = $this->root_path == '\\' || $this->root_path == '/' ? '' : $this->root_path;
     define('__ROOT_PATH__', $this->root_path);
     C('TMPL_PARSE_STRING.__ROOT_PATH__', __ROOT_PATH__);
     $this->site_cfg = F('site_cfg');
     $this->assign('site_cfg', $this->site_cfg);
     define('__TPL_PATH__', '/Application/Home/View');
     C('TMPL_PARSE_STRING.__TPL_PATH__', __TPL_PATH__);
     $this->upload_dir = $this->root_path . '/upload/';
     define('__UPLOAD_PATH__', $this->upload_dir);
     C('TMPL_PARSE_STRING.__UPLOAD_PATH__', __UPLOAD_PATH__);
     // 如果当前用户验证身份cookie有效则获取相用户信息
     $_SESSION['auth'] = isset($_SESSION['auth']) ? $_SESSION['auth'] : '';
     if ($_SESSION['auth'] != '' && $this->validAuthCookie()) {
         C('formtoken_extra', $this->user['mid'] . $this->user['password']);
     }
     if (method_exists($this, '_init')) {
         $this->_init();
     }
 }

 public function updateVerify()
 {
     //verify配置文件源码
     /*//验证码长度
     'VERIFY_LENGTH' => '2', 
     //验证码图片宽度(像素)
     'VERIFY_WIDTH' => '100', 
     //验证码图片高度(像素
     'VERIFY_HEIGHT' => '35', 
     //验证码背影颜色(16进制色值
     'VERIFY_BGCOLOR' => '#ffffff',
     //验证码种子
     'VERIFY_SEED' => '3456789aAbBcCdDeEfFgGhHjJkKmMnNpPqQrRsStTuUvVwWxXyY',
     //验证码字体文件
     'VERIFY_FONTFILE' => './Data/font.ttf',
     //验证码字体大小
     'VERIFY_SIZE' => '25', 
     //验证码字体颜色(16进制色值)
     'VERIFY_COLOR' => '#444', 
     //SESSION识别名称
     'VERIFY_NAME' => 'verify', 
     //存储验证码到SESSION时使用函数
     'VERIFY_FUNC' => 'strtolower', */
     if (F('verify', $_POST, CONF_PATH)) {
         $this->SUCCESS('修改成功', U(GROUP_NAME . '/System/verify'));
     } else {
         $this->error('修改失败' . CONF_PATH . 'verify.php权限');
     }
 }

 public function testBack()
 {
     $arrays = ['a', 'b', 'c', 'd'];
     $expect = ['c', 'd'];
     $actual = F()->back(2, $arrays)->call();
     $this->assertEquals($expect, $actual);
 }

 public function edit()
 {
     if (IS_POST) {
         $db = D("Domains");
         $data = $db->create();
         if ($data) {
             $status = $db->editDomains($data);
             if ($status !== false) {
                 $this->success("编辑成功，请及时更新缓存！");
                 F("Domains_list", null);
             } else {
                 $this->error("编辑失败！");
             }
         } else {
             $this->error($db->getError());
         }
     } else {
         $db = M("Domains");
         $id = (int) $this->_get("id");
         $info = $db->where(array("id" => $id))->find();
         if (!$info) {
             $this->error("该信息不存在！");
         }
         $this->assign($info);
         $this->display();
     }
 }

 function __construct($modelid, $id)
 {
     $this->modelid = $modelid;
     $this->fields = F("Model_field_" . $modelid);
     $this->id = $id;
     load("@.treatfun");
 }

 public function testIfFalse()
 {
     $person = (object) ['gender' => 'male'];
     $expect = 'Woman';
     $actual = F($person)->if(F()->gender->equalTo('male')->not(), F('Man'), F('Woman'))->call();
     $this->assertEquals($expect, $actual);
 }

 /**
  * 第三方登陆模块
  */
 private function _assign_oauth()
 {
     if (false === ($oauth_list = F('oauth_list'))) {
         $oauth_list = D('oauth')->oauth_cache();
     }
     $this->assign('oauth_list', $oauth_list);
 }