您好,登錄后才能下訂單哦!
Application如何在Zend Framework中使用?相信很多沒有經驗的人對此束手無策,為此本文總結了問題出現的原因和解決方法,通過這篇文章希望你能解決這個問題。
Zend_Application是Zend Framework的核心組件。Zend_Application為Zend Framework應用程序提供基本功能,是程序的入口點。它的主要功能有兩個:裝載配置PHP環境(包括自動加載),并引導應用程序。
通常情況下,通過配置選項配置Zend_Application構造器,但也可以完全使用自定義方法配置。以下是兩個使用用例。
Zend_Application配置選項
構造函數:
/** * Constructor * * Initialize application. Potentially initializes include_paths, PHP * settings, and bootstrap class. * * @param string $environment * @param string|array|Zend_Config $options String path to configuration file, or array/Zend_Config of configuration options * @throws Zend_Application_Exception When invalid options are provided * @return void */ public function __construct($environment, $options = null) { $this->_environment = (string) $environment; require_once 'Zend/Loader/Autoloader.php'; $this->_autoloader = Zend_Loader_Autoloader::getInstance(); if (null !== $options) { if (is_string($options)) { $options = $this->_loadConfig($options); } elseif ($options instanceof Zend_Config) { $options = $options->toArray(); } elseif (!is_array($options)) { throw new Zend_Application_Exception('Invalid options provided; must be location of config file, a config object, or an array'); } $this->setOptions($options); } }
Zend_Application配置方法
1.使用配置文件
2.使用配置數組
常見配置選項
Option | Description |
---|---|
phpSettings | 用于配置php.ini選項,要求是數組,數組的鍵應該是選項的的key. |
includePaths | 把附加的路徑加入到include_path,要求是數組 |
autoloaderNamespaces | 給Zend_Loader_Autoloader注冊附加命名空間,為數組 |
bootstrap | 可以是設置bootstrap引導類的路徑的字符串,也可以是數組,數組元素要求為 'path' 和 'class' |
注意:
選項名稱不區分大小寫。
Zend_Application的方法
Method | Return Value | Parameters | Description |
---|---|---|---|
__construct( $environment, $options = null) | Void |
| 構造函數。 用于初始化配置對象。 實例化Zend_Loader_Autoloader。 通過傳遞給構造函數選項然后傳遞給setOptions()方法。 |
getEnvironment() | String | N/A | 獲取環境配置 |
getAutoloader() | Zend_Loader_Autoloader | N/A | 獲取Zend_Loader_Autoloader實例 |
setOptions(array $options) | Zend_Application |
| 所有選項都存儲在引用內部,并多次調用該方法來合并選項。 會根據選項生產對于的setter方法。 例如,選項“phpSettings”對應setPhpSettings()。 (選項名稱不區分大小寫。) |
getOptions() | Array | N/A |
|
hasOption($key) | Boolean |
| key不區分大小寫。 |
getOption($key) | Mixed |
| key不區分大小寫。如果不存在返回 NULL |
setPhpSettings(array $settings, $prefix = '') | Zend_Application |
|
|
setAutoloaderNamespaces(array $namespaces) | Zend_Application |
|
|
setBootstrap($path, $class = null) | Zend_Application |
| |
getBootstrap() | NULL |Zend_Application_Bootstrap_Bootstrapper | N/A | 獲取注冊的bootstrap實例. |
bootstrap() | Void | N/A | 調用 bootstrap的bootstrap() 引導應用. |
run() | Void | N/A | 調用bootstrap的 run()運行應用 |
配置舉例:
默認:
// Create application, bootstrap, and run $application = new Zend_Application( APPLICATION_ENV, APPLICATION_PATH . '/configs/application.ini' ); $application->bootstrap() ->run();
源代碼
<?php class Zend_Application { /** * Constructor * * Initialize application. Potentially initializes include_paths, PHP * settings, and bootstrap class. * * @param string $environment * @param string|array|Zend_Config $options String path to configuration file, or array/Zend_Config of configuration options * @throws Zend_Application_Exception When invalid options are provided * @return void */ public function __construct($environment, $options = null) { $this->_environment = (string) $environment; require_once 'Zend/Loader/Autoloader.php'; $this->_autoloader = Zend_Loader_Autoloader::getInstance(); if (null !== $options) { if (is_string($options)) { $options = $this->_loadConfig($options); } elseif ($options instanceof Zend_Config) { $options = $options->toArray(); } elseif (!is_array($options)) { throw new Zend_Application_Exception('Invalid options provided; must be location of config file, a config object, or an array'); } $this->setOptions($options); } } /** * Retrieve current environment * * @return string */ public function getEnvironment() { return $this->_environment; } /** * Retrieve autoloader instance * * @return Zend_Loader_Autoloader */ public function getAutoloader() { return $this->_autoloader; } /** * Set application options * * @param array $options * @throws Zend_Application_Exception When no bootstrap path is provided * @throws Zend_Application_Exception When invalid bootstrap information are provided * @return Zend_Application */ public function setOptions(array $options) { if (!empty($options['config'])) { if (is_array($options['config'])) { $_options = array(); foreach ($options['config'] as $tmp) { $_options = $this->mergeOptions($_options, $this->_loadConfig($tmp)); } $options = $this->mergeOptions($_options, $options); } else { $options = $this->mergeOptions($this->_loadConfig($options['config']), $options); } } $this->_options = $options; $options = array_change_key_case($options, CASE_LOWER); $this->_optionKeys = array_keys($options); if (!empty($options['phpsettings'])) { $this->setPhpSettings($options['phpsettings']); } if (!empty($options['includepaths'])) { $this->setIncludePaths($options['includepaths']); } if (!empty($options['autoloadernamespaces'])) { $this->setAutoloaderNamespaces($options['autoloadernamespaces']); } if (!empty($options['autoloaderzfpath'])) { $autoloader = $this->getAutoloader(); if (method_exists($autoloader, 'setZfPath')) { $zfPath = $options['autoloaderzfpath']; $zfVersion = !empty($options['autoloaderzfversion']) ? $options['autoloaderzfversion'] : 'latest'; $autoloader->setZfPath($zfPath, $zfVersion); } } if (!empty($options['bootstrap'])) { $bootstrap = $options['bootstrap']; if (is_string($bootstrap)) { $this->setBootstrap($bootstrap); } elseif (is_array($bootstrap)) { if (empty($bootstrap['path'])) { throw new Zend_Application_Exception('No bootstrap path provided'); } $path = $bootstrap['path']; $class = null; if (!empty($bootstrap['class'])) { $class = $bootstrap['class']; } $this->setBootstrap($path, $class); } else { throw new Zend_Application_Exception('Invalid bootstrap information provided'); } } return $this; } /** * Retrieve application options (for caching) * * @return array */ public function getOptions() { return $this->_options; } /** * Is an option present? * * @param string $key * @return bool */ public function hasOption($key) { return in_array(strtolower($key), $this->_optionKeys); } /** * Retrieve a single option * * @param string $key * @return mixed */ public function getOption($key) { } /** * Merge options recursively * * @param array $array1 * @param mixed $array2 * @return array */ public function mergeOptions(array $array1, $array2 = null) { if (is_array($array2)) { foreach ($array2 as $key => $val) { if (is_array($array2[$key])) { $array1[$key] = (array_key_exists($key, $array1) && is_array($array1[$key])) ? $this->mergeOptions($array1[$key], $array2[$key]) : $array2[$key]; } else { $array1[$key] = $val; } } } return $array1; } /** * Set PHP configuration settings * * @param array $settings * @param string $prefix Key prefix to prepend to array values (used to map . separated INI values) * @return Zend_Application */ public function setPhpSettings(array $settings, $prefix = '') { foreach ($settings as $key => $value) { $key = empty($prefix) ? $key : $prefix . $key; if (is_scalar($value)) { ini_set($key, $value); } elseif (is_array($value)) { $this->setPhpSettings($value, $key . '.'); } } return $this; } /** * Set include path * * @param array $paths * @return Zend_Application */ public function setIncludePaths(array $paths) { $path = implode(PATH_SEPARATOR, $paths); set_include_path($path . PATH_SEPARATOR . get_include_path()); return $this; } /** * Set autoloader namespaces * * @param array $namespaces * @return Zend_Application */ public function setAutoloaderNamespaces(array $namespaces) { $autoloader = $this->getAutoloader(); foreach ($namespaces as $namespace) { $autoloader->registerNamespace($namespace); } return $this; } /** * Set bootstrap path/class * * @param string $path * @param string $class * @return Zend_Application */ public function setBootstrap($path, $class = null) { // setOptions() can potentially send a null value; specify default // here if (null === $class) { $class = 'Bootstrap'; } if (!class_exists($class, false)) { require_once $path; if (!class_exists($class, false)) { throw new Zend_Application_Exception('Bootstrap class not found'); } } $this->_bootstrap = new $class($this); if (!$this->_bootstrap instanceof Zend_Application_Bootstrap_Bootstrapper) { throw new Zend_Application_Exception('Bootstrap class does not implement Zend_Application_Bootstrap_Bootstrapper'); } return $this; } /** * Get bootstrap object * * @return Zend_Application_Bootstrap_BootstrapAbstract */ public function getBootstrap() { if (null === $this->_bootstrap) { $this->_bootstrap = new Zend_Application_Bootstrap_Bootstrap($this); } return $this->_bootstrap; } /** * Bootstrap application * * @param null|string|array $resource * @return Zend_Application */ public function bootstrap($resource = null) { $this->getBootstrap()->bootstrap($resource); return $this; } /** * Run the application * * @return void */ public function run() { $this->getBootstrap()->run(); } /** * Load configuration file of options * * @param string $file * @throws Zend_Application_Exception When invalid configuration file is provided * @return array */ protected function _loadConfig($file) { $environment = $this->getEnvironment(); $suffix = pathinfo($file, PATHINFO_EXTENSION); $suffix = ($suffix === 'dist') ? pathinfo(basename($file, ".$suffix"), PATHINFO_EXTENSION) : $suffix; switch (strtolower($suffix)) { case 'ini': $config = new Zend_Config_Ini($file, $environment); break; case 'xml': $config = new Zend_Config_Xml($file, $environment); break; case 'json': $config = new Zend_Config_Json($file, $environment); break; case 'yaml': case 'yml': $config = new Zend_Config_Yaml($file, $environment); break; case 'php': case 'inc': $config = include $file; if (!is_array($config)) { throw new Zend_Application_Exception('Invalid configuration file provided; PHP file does not return array value'); } return $config; break; default: throw new Zend_Application_Exception('Invalid configuration file provided; unknown config type'); } return $config->toArray(); } }
看完上述內容,你們掌握Application如何在Zend Framework中使用的方法了嗎?如果還想學到更多技能或想了解更多相關內容,歡迎關注億速云行業資訊頻道,感謝各位的閱讀!
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。