Я хотел бы использовать стандартный способ PSR-0 для автозагрузки классов без необходимости добавления включений, например, как я могу заменить приведенный ниже код механизмом автозагрузки:
namespace Example; use MyLib\Controller; include_once './library/MyLib/Controller/AbstractController.php'; class MyController extends Controller\AbstractController { [...] Итак, в приведенном выше примере это показывает, что в каждом контроллере мне нужно включить абстрактный контроллер, который сумасшедший …
Я нашел здесь код PSR-0:
https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
https://gist.github.com/221634
Но я не знаю, как мне нужно реализовать это в своем приложении.
Вам нужно включить (include / require statement) файл с кодом автозагрузки в первый скрипт вашего приложения
Если вы выберете для использования автозагрузчика Composer как @Skpd, тогда у вас должен быть такой код в верхней части вашего первого скрипта PHP.
include_once __DIR__ . '/composer_autoloader.php' $loader = new \Composer\Autoload\ClassLoader(); $loader->add('MyLib', __DIR__.'/library/'); $loader->register();
Если вы решили использовать Composer в качестве менеджера вашего поставщика, добавьте свои собственные пространства имен в ваш composer.json и включите vendor/autoload.php
Вам необходимо использовать автозагрузчик. Примерный загрузчик классов из Composer:
<?php /* * This file is part of Composer. * * (c) Nils Adermann <naderman@naderman.de> * Jordi Boggiano <j.boggiano@seld.be> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Composer\Autoload; /** * ClassLoader implements a PSR-0 class loader * * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md * * $loader = new \Composer\Autoload\ClassLoader(); * * // register classes with namespaces * $loader->add('Symfony\Component', __DIR__.'/component'); * $loader->add('Symfony', __DIR__.'/framework'); * * // activate the autoloader * $loader->register(); * * // to enable searching the include path (eg. for PEAR packages) * $loader->setUseIncludePath(true); * * In this example, if you try to use a class in the Symfony\Component * namespace or one of its children (Symfony\Component\Console for instance), * the autoloader will first look for the class under the component/ * directory, and it will then fallback to the framework/ directory if not * found before giving up. * * This class is loosely based on the Symfony UniversalClassLoader. * * @author Fabien Potencier <fabien@symfony.com> * @author Jordi Boggiano <j.boggiano@seld.be> */ class ClassLoader { private $prefixes = array(); private $fallbackDirs = array(); private $useIncludePath = false; private $classMap = array(); public function getPrefixes() { return $this->prefixes; } public function getFallbackDirs() { return $this->fallbackDirs; } public function getClassMap() { return $this->classMap; } /** * @param array $classMap Class to filename map */ public function addClassMap(array $classMap) { if ($this->classMap) { $this->classMap = array_merge($this->classMap, $classMap); } else { $this->classMap = $classMap; } } /** * Registers a set of classes * * @param string $prefix The classes prefix * @param array|string $paths The location(s) of the classes */ public function add($prefix, $paths) { if (!$prefix) { foreach ((array) $paths as $path) { $this->fallbackDirs[] = $path; } return; } if (isset($this->prefixes[$prefix])) { $this->prefixes[$prefix] = array_merge( $this->prefixes[$prefix], (array) $paths ); } else { $this->prefixes[$prefix] = (array) $paths; } } /** * Turns on searching the include path for class files. * * @param bool $useIncludePath */ public function setUseIncludePath($useIncludePath) { $this->useIncludePath = $useIncludePath; } /** * Can be used to check if the autoloader uses the include path to check * for classes. * * @return bool */ public function getUseIncludePath() { return $this->useIncludePath; } /** * Registers this instance as an autoloader. * * @param bool $prepend Whether to prepend the autoloader or not */ public function register($prepend = false) { spl_autoload_register(array($this, 'loadClass'), true, $prepend); } /** * Unregisters this instance as an autoloader. */ public function unregister() { spl_autoload_unregister(array($this, 'loadClass')); } /** * Loads the given class or interface. * * @param string $class The name of the class * @return bool|null True, if loaded */ public function loadClass($class) { if ($file = $this->findFile($class)) { include $file; return true; } } /** * Finds the path to the file where the class is defined. * * @param string $class The name of the class * * @return string|null The path, if found */ public function findFile($class) { if ('\\' == $class[0]) { $class = substr($class, 1); } if (isset($this->classMap[$class])) { return $this->classMap[$class]; } if (false !== $pos = strrpos($class, '\\')) { // namespaced class name $classPath = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, 0, $pos)) . DIRECTORY_SEPARATOR; $className = substr($class, $pos + 1); } else { // PEAR-like class name $classPath = null; $className = $class; } $classPath .= str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php'; foreach ($this->prefixes as $prefix => $dirs) { if (0 === strpos($class, $prefix)) { foreach ($dirs as $dir) { if (file_exists($dir . DIRECTORY_SEPARATOR . $classPath)) { return $dir . DIRECTORY_SEPARATOR . $classPath; } } } } foreach ($this->fallbackDirs as $dir) { if (file_exists($dir . DIRECTORY_SEPARATOR . $classPath)) { return $dir . DIRECTORY_SEPARATOR . $classPath; } } if ($this->useIncludePath && $file = stream_resolve_include_path($classPath)) { return $file; } return $this->classMap[$class] = false; } }к<?php /* * This file is part of Composer. * * (c) Nils Adermann <naderman@naderman.de> * Jordi Boggiano <j.boggiano@seld.be> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Composer\Autoload; /** * ClassLoader implements a PSR-0 class loader * * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md * * $loader = new \Composer\Autoload\ClassLoader(); * * // register classes with namespaces * $loader->add('Symfony\Component', __DIR__.'/component'); * $loader->add('Symfony', __DIR__.'/framework'); * * // activate the autoloader * $loader->register(); * * // to enable searching the include path (eg. for PEAR packages) * $loader->setUseIncludePath(true); * * In this example, if you try to use a class in the Symfony\Component * namespace or one of its children (Symfony\Component\Console for instance), * the autoloader will first look for the class under the component/ * directory, and it will then fallback to the framework/ directory if not * found before giving up. * * This class is loosely based on the Symfony UniversalClassLoader. * * @author Fabien Potencier <fabien@symfony.com> * @author Jordi Boggiano <j.boggiano@seld.be> */ class ClassLoader { private $prefixes = array(); private $fallbackDirs = array(); private $useIncludePath = false; private $classMap = array(); public function getPrefixes() { return $this->prefixes; } public function getFallbackDirs() { return $this->fallbackDirs; } public function getClassMap() { return $this->classMap; } /** * @param array $classMap Class to filename map */ public function addClassMap(array $classMap) { if ($this->classMap) { $this->classMap = array_merge($this->classMap, $classMap); } else { $this->classMap = $classMap; } } /** * Registers a set of classes * * @param string $prefix The classes prefix * @param array|string $paths The location(s) of the classes */ public function add($prefix, $paths) { if (!$prefix) { foreach ((array) $paths as $path) { $this->fallbackDirs[] = $path; } return; } if (isset($this->prefixes[$prefix])) { $this->prefixes[$prefix] = array_merge( $this->prefixes[$prefix], (array) $paths ); } else { $this->prefixes[$prefix] = (array) $paths; } } /** * Turns on searching the include path for class files. * * @param bool $useIncludePath */ public function setUseIncludePath($useIncludePath) { $this->useIncludePath = $useIncludePath; } /** * Can be used to check if the autoloader uses the include path to check * for classes. * * @return bool */ public function getUseIncludePath() { return $this->useIncludePath; } /** * Registers this instance as an autoloader. * * @param bool $prepend Whether to prepend the autoloader or not */ public function register($prepend = false) { spl_autoload_register(array($this, 'loadClass'), true, $prepend); } /** * Unregisters this instance as an autoloader. */ public function unregister() { spl_autoload_unregister(array($this, 'loadClass')); } /** * Loads the given class or interface. * * @param string $class The name of the class * @return bool|null True, if loaded */ public function loadClass($class) { if ($file = $this->findFile($class)) { include $file; return true; } } /** * Finds the path to the file where the class is defined. * * @param string $class The name of the class * * @return string|null The path, if found */ public function findFile($class) { if ('\\' == $class[0]) { $class = substr($class, 1); } if (isset($this->classMap[$class])) { return $this->classMap[$class]; } if (false !== $pos = strrpos($class, '\\')) { // namespaced class name $classPath = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, 0, $pos)) . DIRECTORY_SEPARATOR; $className = substr($class, $pos + 1); } else { // PEAR-like class name $classPath = null; $className = $class; } $classPath .= str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php'; foreach ($this->prefixes as $prefix => $dirs) { if (0 === strpos($class, $prefix)) { foreach ($dirs as $dir) { if (file_exists($dir . DIRECTORY_SEPARATOR . $classPath)) { return $dir . DIRECTORY_SEPARATOR . $classPath; } } } } foreach ($this->fallbackDirs as $dir) { if (file_exists($dir . DIRECTORY_SEPARATOR . $classPath)) { return $dir . DIRECTORY_SEPARATOR . $classPath; } } if ($this->useIncludePath && $file = stream_resolve_include_path($classPath)) { return $file; } return $this->classMap[$class] = false; } }к<?php /* * This file is part of Composer. * * (c) Nils Adermann <naderman@naderman.de> * Jordi Boggiano <j.boggiano@seld.be> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Composer\Autoload; /** * ClassLoader implements a PSR-0 class loader * * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md * * $loader = new \Composer\Autoload\ClassLoader(); * * // register classes with namespaces * $loader->add('Symfony\Component', __DIR__.'/component'); * $loader->add('Symfony', __DIR__.'/framework'); * * // activate the autoloader * $loader->register(); * * // to enable searching the include path (eg. for PEAR packages) * $loader->setUseIncludePath(true); * * In this example, if you try to use a class in the Symfony\Component * namespace or one of its children (Symfony\Component\Console for instance), * the autoloader will first look for the class under the component/ * directory, and it will then fallback to the framework/ directory if not * found before giving up. * * This class is loosely based on the Symfony UniversalClassLoader. * * @author Fabien Potencier <fabien@symfony.com> * @author Jordi Boggiano <j.boggiano@seld.be> */ class ClassLoader { private $prefixes = array(); private $fallbackDirs = array(); private $useIncludePath = false; private $classMap = array(); public function getPrefixes() { return $this->prefixes; } public function getFallbackDirs() { return $this->fallbackDirs; } public function getClassMap() { return $this->classMap; } /** * @param array $classMap Class to filename map */ public function addClassMap(array $classMap) { if ($this->classMap) { $this->classMap = array_merge($this->classMap, $classMap); } else { $this->classMap = $classMap; } } /** * Registers a set of classes * * @param string $prefix The classes prefix * @param array|string $paths The location(s) of the classes */ public function add($prefix, $paths) { if (!$prefix) { foreach ((array) $paths as $path) { $this->fallbackDirs[] = $path; } return; } if (isset($this->prefixes[$prefix])) { $this->prefixes[$prefix] = array_merge( $this->prefixes[$prefix], (array) $paths ); } else { $this->prefixes[$prefix] = (array) $paths; } } /** * Turns on searching the include path for class files. * * @param bool $useIncludePath */ public function setUseIncludePath($useIncludePath) { $this->useIncludePath = $useIncludePath; } /** * Can be used to check if the autoloader uses the include path to check * for classes. * * @return bool */ public function getUseIncludePath() { return $this->useIncludePath; } /** * Registers this instance as an autoloader. * * @param bool $prepend Whether to prepend the autoloader or not */ public function register($prepend = false) { spl_autoload_register(array($this, 'loadClass'), true, $prepend); } /** * Unregisters this instance as an autoloader. */ public function unregister() { spl_autoload_unregister(array($this, 'loadClass')); } /** * Loads the given class or interface. * * @param string $class The name of the class * @return bool|null True, if loaded */ public function loadClass($class) { if ($file = $this->findFile($class)) { include $file; return true; } } /** * Finds the path to the file where the class is defined. * * @param string $class The name of the class * * @return string|null The path, if found */ public function findFile($class) { if ('\\' == $class[0]) { $class = substr($class, 1); } if (isset($this->classMap[$class])) { return $this->classMap[$class]; } if (false !== $pos = strrpos($class, '\\')) { // namespaced class name $classPath = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, 0, $pos)) . DIRECTORY_SEPARATOR; $className = substr($class, $pos + 1); } else { // PEAR-like class name $classPath = null; $className = $class; } $classPath .= str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php'; foreach ($this->prefixes as $prefix => $dirs) { if (0 === strpos($class, $prefix)) { foreach ($dirs as $dir) { if (file_exists($dir . DIRECTORY_SEPARATOR . $classPath)) { return $dir . DIRECTORY_SEPARATOR . $classPath; } } } } foreach ($this->fallbackDirs as $dir) { if (file_exists($dir . DIRECTORY_SEPARATOR . $classPath)) { return $dir . DIRECTORY_SEPARATOR . $classPath; } } if ($this->useIncludePath && $file = stream_resolve_include_path($classPath)) { return $file; } return $this->classMap[$class] = false; } }