PHP Controller::halt方法代码示例

 /**
  * 构造方法
  *
  * @access public
  * @return boolean
  */
 public function __construct()
 {
     if (!function_exists('eaccelerator')) {
         Controller::halt('The eAccelerator extension to be loaded.');
     }
     return true;
 }

 /**
  * 构造方法
  *
  * 用于初始化运行环境,或对基本变量进行赋值
  *
  * @access public
  *
  * @param array $params 数据库连接参数,如主机名,数据库用户名,密码等
  *
  * @return boolean
  */
 public function __construct($params = array())
 {
     if (!extension_loaded('mongo')) {
         Controller::halt('The mongo extension to be loaded!');
     }
     //参数分析
     if (!$params || !is_array($params)) {
         //加载数据库配置文件.
         $params = Configure::get('mongo');
     }
     $params = is_array($params) ? $params + $this->_defaultConfig : $this->_defaultConfig;
     if (!isset($params['dbname']) || !$params['dbname']) {
         Controller::halt('The file of MongoDB config is error, dbname is not found!');
     }
     try {
         //实例化mongo
         $this->_mongo = new Mongo($params['dsn'], $params['option']);
         //连接mongo数据库
         $this->_dbLink = $this->_mongo->selectDB($params['dbname']);
         //用户登录
         if (isset($params['username']) && isset($params['password'])) {
             $this->_dbLink->authenticate($params['username'], $params['password']);
         }
         return true;
     } catch (Exception $exception) {
         //抛出异常信息
         throw new DoitException('MongoDb connect error!<br/>' . $exception->getMessage(), $exception->getCode());
     }
 }

 /**
  * 执行SQL语句
  */
 public function query($sql, $link = null)
 {
     $link = $link ? $link : $this->db_link;
     $result = mysql_query($sql, $link);
     //file_put_contents('sql.txt', $sql . PHP_EOL, FILE_APPEND);
     //日志操作,当调试模式开启时,将所执行过的SQL写入SQL跟踪日志文件,便于DBA进行MYSQL优化。若调试模式关闭,当SQL语句执行错误时写入日志文件
     if (SYS_DEBUG === false) {
         if ($result == false) {
             //获取当前运行的namespace、controller及action名称
             $action_id = App::get_action_id();
             $namespace_id = App::get_namespace_id();
             $controller_id = App::get_controller_id();
             $namespace_code = $namespace_id ? '[' . $namespace_id . ']' : '';
             if (SYS_LOG === true) {
                 Log::write($namespace_code . '[' . $controller_id . '][' . $action_id . '] SQL execute failed :' . $sql . ' Error Code:' . $this->errno() . 'Error Message:' . $this->error());
             }
         }
     } else {
         //获取当前运行的namespace、controller及action名称
         $action_id = App::get_action_id();
         $namespace_id = App::get_namespace_id();
         $controller_id = App::get_controller_id();
         $sql_log_file = APP_ROOT . 'logs' . DIRECTORY_SEPARATOR . 'SQL_' . date('Y_m_d', $_SERVER['REQUEST_TIME']) . '.log';
         $namespace_code = $namespace_id ? '[' . $namespace_id . ']' : '';
         if ($result == true) {
             if (SYS_LOG === true) {
                 Log::write($namespace_code . '[' . $controller_id . '][' . $action_id . ']:' . $sql, 'Normal', $sql_log_file);
             }
         } else {
             Controller::halt($namespace_code . '[' . $controller_id . '][' . $action_id . '] SQL execute failed :' . $sql . '<br/>Error Message:' . $this->error() . '<br/>Error Code:' . $this->errno() . '<br/>Error SQL:' . $sql);
         }
     }
     return $result;
 }

 /**
  * 构造方法
  *
  * @access public
  * @return boolean
  */
 public function __construct()
 {
     if (!extension_loaded('apc')) {
         Controller::halt('The apc extension to be loaded.');
     }
     return true;
 }

 /**
  * 类方法自动调用引导
  *
  * 用于处理类外调用本类不存在的方法时的信息提示
  *
  * @access public
  *
  * @param string $method 类方法名称
  * @param array $args 参数值。注：本参数为数组
  *
  * @return mixed
  */
 public function __call($method, $args)
 {
     //参数分析
     $method = strtolower($method);
     if (in_array($method, array('count', 'max', 'min', 'sum', 'avg'))) {
         array_unshift($args, $method);
         return call_user_func_array(array($this, '_selectByFunction'), $args);
     }
     return Controller::halt("The method: {$method}() is not found in DbCommand class!", 'Normal');
 }

 /**
  * 构造函数
  *
  * @access public
  *
  * @param array $params 数据库连接参数,如主机名,数据库用户名,密码等
  *
  * @return boolean
  */
 public function __construct($options = null)
 {
     if (!extension_loaded('redis')) {
         Controller::halt('The redis extension to be loaded!');
     }
     //当参数为空时,程序则自动加载配置文件中数据库连接参数
     if (!$options || !is_array($options)) {
         $options = Configure::get('redis');
         if (!$options) {
             $options = array();
         }
     }
     $options += $this->_defaultServer;
     //连接数据库
     $this->_dbLink = new Redis();
     $this->_dbLink->connect($options['host'], $options['port']);
     return true;
 }

 /**
  * 构造方法
  *
  * @access public
  *
  * @param array $params 数据库连接参数,如主机名,数据库用户名,密码等
  *
  * @return boolean
  */
 public function __construct($options = null)
 {
     //分析memcache扩展模块的加载
     if (!extension_loaded('memcache')) {
         Controller::halt('The memcache extension to be loaded before use!');
     }
     //获取Memcache服务器连接参数
     if (!$options || !is_array($options)) {
         $options = Configure::get('memcache');
     }
     if (is_array($options) && $options) {
         $this->_defaultOptions = $options + $this->_defaultOptions;
     }
     if (!$this->_defaultOptions['servers']) {
         $this->_defaultOptions['servers'][] = $this->_defaultServer;
     }
     $this->_dbLink = new Memcache();
     foreach ($this->_defaultOptions['servers'] as $server) {
         $server += array('host' => '127.0.0.1', 'port' => 11211, 'persistent' => true);
         $this->_dbLink->addServer($server['host'], $server['port'], $this->_defaultOptions['persistent']);
     }
     return true;
 }

 /**
  * 构造方法
  *
  * 用于初始化运行环境,或对基本变量进行赋值
  *
  * @access public
  *
  * @param array $params 数据库连接参数,如主机名,数据库用户名,密码等
  *
  * @return boolean
  */
 public function __construct($params = array())
 {
     //参数分析
     if (!$params['dsn']) {
         Controller::halt('database config params error!', 'Normal');
     }
     $params += $this->_defaultConfig;
     //数据库连接
     try {
         $flags = array(PDO::ATTR_PERSISTENT => $params['persistency'], PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION);
         //实例化数据库连接
         $this->_dbLink = new PDO($params['dsn'], $params['username'], $params['password'], $flags);
     } catch (PDOException $exception) {
         //当调试模式关闭时
         if (DOIT_DEBUG === false) {
             //记录错误日志
             Log::write("Database server connect error! Error Code:{$exception->getCode()} Error Message:{$exception->getMessage()}", 'Warning');
             //提示错误信息
             Controller::showMsg('数据库连接失败！');
         }
         //抛出异常信息
         throw new DoitException('Database connect error!<br/>' . $exception->getMessage(), $exception->getCode());
     }
     //设置数据编码
     $driverName = $this->_dbLink->getAttribute(PDO::ATTR_DRIVER_NAME);
     switch ($driverName) {
         case 'mysql':
         case 'pgsql':
             $this->_dbLink->exec("SET NAMES {$params['charset']}");
             break;
         case 'sqlsrv':
             $this->_dbLink->setAttribute(PDO::SQLSRV_ATTR_ENCODING, $params['charset']);
             break;
     }
     return true;
 }

 /**
  * trigger_error()的简化函数
  *
  * 用于显示错误信息. 若调试模式关闭时(即:SYS_DEBUG为false时)，则将错误信息并写入日志
  * @access public
  * @param string $message   所要显示的错误信息
  * @param string $level     日志类型. 默认为Error. 参数：Warning, Error, Notice
  * @return void
  */
 public function halt($message, $level = 'Error')
 {
     return Controller::halt($message, $level);
 }

 /**
  * 类方法自动调用引导
  *
  * 用于处理类外调用本类不存在的方法时的信息提示
  *
  * @access public
  *
  * @param string $method 类方法名称
  * @param array $args 所调用类方法的参数
  *
  * @return mixed
  */
 public function __call($method, $args)
 {
     //分析 findByxx()的类方法调用
     if (strpos($method, 'findBy') !== false) {
         //分析所要查询的数据表字段名
         $fieldsName = substr($method, 6);
         $fieldsName = ltrim(strtolower(preg_replace('#[A-Z]#', '_\\0', $fieldsName)), '_');
         array_unshift($args, "{$fieldsName}=?");
         return call_user_func_array(array($this, 'getOne'), $args);
     }
     //分析 findAllByxx()的类方法调用
     if (strpos($method, 'findAllBy') !== false) {
         //分析所要查询的数据表字段名
         $fieldsName = substr($method, 9);
         $fieldsName = ltrim(strtolower(preg_replace('#[A-Z]#', '_\\0', $fieldsName)), '_');
         array_unshift($args, "{$fieldsName}=?");
         return call_user_func_array(array($this, 'getAll'), $args);
     }
     return Controller::halt("The method: {$method}() is not found in Model class!", 'Normal');
 }

 /**
  * 读取名字为$name的zip包的内容
  *
  * @access public
  *
  * @param string $name 所读取的zip文件的路径
  *
  * @return array
  */
 public function readZip($name)
 {
     //参数分析
     if (!$name) {
         return false;
     }
     if (!is_file($name)) {
         Controller::halt("The File: {$name} is not found!");
     }
     // File information
     $size = filesize($name);
     // Read file
     $fh = fopen($name, "rb");
     $filedata = fread($fh, $size);
     fclose($fh);
     // Break into sections
     $filesecta = explode("PK", $filedata);
     // ZIP Comment
     $unpackeda = unpack('x16/v1length', $filesecta[1]);
     $comment = substr($filesecta[1], 18, $unpackeda['length']);
     $comment = str_replace(array("\r\n", "\r"), "\n", $comment);
     // CR + LF and CR -> LF
     // Cut entries from the central directory
     $filesecta = explode("PK", $filedata);
     $filesecta = explode("PK", $filesecta[0]);
     array_shift($filesecta);
     // Removes empty entry/signature
     $files = array();
     foreach ($filesecta as $filedata) {
         // CRC:crc, FD:file date, FT: file time, CM: compression method, GPF: general purpose flag, VN: version needed, CS: compressed size, UCS: uncompressed size, FNL: filename length
         $entrya = array();
         $unpackeda = unpack("v1version/v1general_purpose/v1compress_method/v1file_time/v1file_date/V1crc/V1size_compressed/V1size_uncompressed/v1filename_length", $filedata);
         // Check for value block after compressed data
         if ($unpackeda['general_purpose'] & 0x8) {
             $unpackeda2 = unpack("V1crc/V1size_compressed/V1size_uncompressed", substr($filedata, -12));
             $unpackeda['crc'] = $unpackeda2['crc'];
             $unpackeda['size_compressed'] = $unpackeda2['size_uncompressed'];
             $unpackeda['size_uncompressed'] = $unpackeda2['size_uncompressed'];
             unset($unpackeda2);
         }
         $entrya['name'] = substr($filedata, 26, $unpackeda['filename_length']);
         if (substr($entrya['name'], -1) == "/") {
             continue;
         }
         $entrya['dir'] = dirname($entrya['name']);
         $entrya['dir'] = $entrya['dir'] == "." ? "" : $entrya['dir'];
         $entrya['name'] = basename($entrya['name']);
         $files[] = $entrya;
     }
     return $files;
 }

 /**
  * 加载视图文件
  *
  * 加载视图文件并对视图标签进行编译
  *
  * @access protected
  *
  * @param string $viewFile 视图文件及路径
  *
  * @return string
  */
 protected function _loadViewFile($viewFile)
 {
     //分析视图文件是否存在
     if (!is_file($viewFile)) {
         Controller::halt("The view file: {$viewFile} is not found!", 'Normal');
     }
     $viewContent = file_get_contents($viewFile);
     //编译视图标签
     return $this->_handleViewFile($viewContent);
 }

//.........这里部分代码省略.........
                 $image = imagecreatefromgif($this->_imageUrl);
                 $this->_type = 'gif';
                 break;
             case 2:
                 $image = imagecreatefromjpeg($this->_imageUrl);
                 $this->_type = 'jpg';
                 break;
             case 3:
                 $image = imagecreatefrompng($this->_imageUrl);
                 $this->_type = 'png';
                 break;
             case 4:
                 $image = imagecreatefromwbmp($this->_imageUrl);
                 $this->_type = 'bmp';
                 break;
         }
         //背景
         $srcX = $imageWidth > $this->_width ? mt_rand(0, $imageWidth - $this->_width) : 0;
         $srcY = $imageHeight > $this->_height ? mt_rand(0, $imageHeight - $this->_height) : 0;
         imagecopymerge($this->_image, $image, 0, 0, $srcX, $srcY, $this->_width, $this->_height, 100);
         imagedestroy($image);
         //边框
         $borderColor = imagecolorallocate($this->_image, 255, 255, 255);
         imagerectangle($this->_image, 1, 1, $this->_width - 2, $this->_height - 2, $borderColor);
     } else {
         //定义图片类型
         $this->_type = 'png';
         //背景
         $bgColorArray = !$this->_bgColor ? array(255, 255, 255) : $this->_bgColor;
         $back_color = imagecolorallocate($this->_image, $bgColorArray[0], $bgColorArray[1], $bgColorArray[2]);
         imagefilledrectangle($this->_image, 0, 0, $this->_width - 1, $this->_height - 1, $back_color);
         //边框
         $borderColor = imagecolorallocate($this->_image, 238, 238, 238);
         imagerectangle($this->_image, 0, 0, $this->_width - 1, $this->_height - 1, $borderColor);
     }
     //获取验证码内容.
     $this->getPincodeContent();
     //验证码中含有汉字
     if (!preg_match('~[\\x{4e00}-\\x{9fa5}]+~u', $this->_textContent)) {
         //计算验证码的位数
         $codeStrlen = strlen($this->_textContent);
         //每位验证码所占用的图片宽度
         $perWidth = ceil(($this->_width - 10) / $codeStrlen);
         for ($i = 0; $i < $codeStrlen; $i++) {
             //获取单个字符
             $textContent = $this->_textContent[$i];
             $bbox = imagettfbbox($this->_fontSize, 0, $this->_fontName, $textContent);
             $fontW = $bbox[2] - $bbox[0];
             $fontH = abs($bbox[7] - $bbox[1]);
             $fontX = ceil(($perWidth - $fontW) / 2) + $perWidth * $i + 5;
             $min_y = $fontH + 5;
             $max_y = $this->_height - 5;
             $fontY = rand($min_y, $max_y);
             $fontColor = !$this->_fontColor ? imagecolorallocate($this->_image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255)) : imagecolorallocate($this->_image, $this->_fontColor[0], $this->_fontColor[1], $this->_fontColor[2]);
             imagettftext($this->_image, $this->_fontSize, 0, $fontX, $fontY, $fontColor, $this->_fontName, $textContent);
         }
     } else {
         //分析验证码的位置
         $bbox = imagettfbbox($this->_fontSize, 0, $this->_fontName, $this->_textContent);
         $fontW = $bbox[2] - $bbox[0];
         $fontH = abs($bbox[7] - $bbox[1]);
         $fontX = ceil(($this->_width - $fontW) / 2) + 5;
         $min_y = $fontH + 5;
         $max_y = $this->_height - 5;
         $fontY = rand($min_y, $max_y);
         $fontColor = !$this->_fontColor ? imagecolorallocate($this->_image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255)) : imagecolorallocate($this->_image, $this->_fontColor[0], $this->_fontColor[1], $this->_fontColor[2]);
         imagettftext($this->_image, $this->_fontSize, 0, $fontX, $fontY, $fontColor, $this->_fontName, $this->_textContent);
     }
     //干扰线
     for ($i = 0; $i < 5; $i++) {
         $line_color = imagecolorallocate($this->_image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
         imageline($this->_image, mt_rand(2, $this->_width - 3), mt_rand(2, $this->_height - 3), mt_rand(2, $this->_width - 3), mt_rand(2, $this->_height - 3), $line_color);
     }
     //将显示的验证码赋值给session.
     Session::set($this->_sessionName, $this->_textContent);
     //当有headers内容输出时.
     if (headers_sent()) {
         Controller::halt('headers already sent');
     }
     //显示图片,根据背景图片的格式显示相应格式的图片.
     switch ($this->_type) {
         case 'gif':
             header('Content-type:image/gif');
             imagegif($this->_image);
             break;
         case 'jpg':
             header('Content-type:image/jpeg');
             imagejpeg($this->_image);
             break;
         case 'png':
             header('Content-type:image/png');
             imagepng($this->_image);
             break;
         case 'bmp':
             header('Content-type:image/wbmp');
             imagewbmp($this->_image);
             break;
     }
     imagedestroy($this->_image);
 }

 /**
  * 文件重命名或移动文件
  *
  * @access public
  *
  * @param string $sourceFile 源文件
  * @param string $destFile 新文件名或路径
  *
  * @return boolean
  */
 public static function moveFile($sourceFile, $destFile)
 {
     //参数分析
     if (!$sourceFile || !$destFile) {
         return false;
     }
     //文件及目录分析
     if (!is_file($sourceFile)) {
         Controller::halt('The file:' . $sourceFile . ' is not found!');
     }
     self::_parseDir(dirname($destFile), true);
     return rename($sourceFile, $destFile);
 }

 /**
  * 获取项目配置文件内容
  *
  * 根据DoitPHP项目的配置文件名称，获取该项目配置文件的内容，并将该内容进行返回
  *
  * @access public
  *
  * @param string $fileName 项目配置文件名。注：不含“.php”后缀。
  *
  * @return array
  */
 public static function getConfig($fileName)
 {
     //参数分析.
     if (!$fileName) {
         return false;
     }
     if (!isset(self::$_config[$fileName])) {
         $filePath = BASE_PATH . '/config/' . $fileName . '.php';
         //判断文件是否存在
         if (!is_file($filePath)) {
             Controller::halt('The configuration file: ' . $fileName . '.php is not exists!', 'Normal');
         }
         $config = array();
         include_once $filePath;
         self::$_config[$fileName] = $config;
     }
     return self::$_config[$fileName];
 }