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<?php |
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/** |
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* SplClassLoader implementation that implements the technical interoperability |
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* standards for PHP 5.3 namespaces and class names. |
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* |
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* http://groups.google.com/group/php-standards/web/psr-0-final-proposal?pli=1 |
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* |
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* // Example which loads classes for the Doctrine Common package in the |
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* // Doctrine\Common namespace. |
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* $classLoader = new SplClassLoader('Doctrine\Common', '/path/to/doctrine'); |
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* $classLoader->register(); |
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* |
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* @license http://www.opensource.org/licenses/mit-license.html MIT License |
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* @author Jonathan H. Wage <[email protected]> |
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* @author Roman S. Borschel <[email protected]> |
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* @author Matthew Weier O'Phinney <[email protected]> |
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* @author Kris Wallsmith <[email protected]> |
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* @author Fabien Potencier <[email protected]> |
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*/ |
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class SplClassLoader |
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{ |
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private $_fileExtension = '.php'; |
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private $_namespace; |
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private $_includePath; |
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private $_namespaceSeparator = '\\'; |
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private $_prepend = false; |
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private $_excluded = array(); |
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/** |
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* Creates a new <tt>SplClassLoader</tt> that loads classes of the |
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* specified namespace. |
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* |
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* @param string $ns The namespace to use. |
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* @param string $includePath |
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*/ |
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public function __construct($ns = null, $includePath = null) |
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{ |
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$this->_namespace = $ns; |
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$this->_includePath = $includePath; |
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} |
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/** |
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* @param string $excluded |
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*/ |
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public function addExcluded($excluded) |
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{ |
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$this->_excluded[] = $excluded; |
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} |
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/** |
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* @param boolean $prepend |
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*/ |
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public function setPrepend($prepend) |
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{ |
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$this->_prepend = $prepend; |
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} |
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/** |
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* Gets the namespace seperator used by classes in the namespace of this class loader. |
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* |
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* @return void |
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*/ |
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public function getNamespaceSeparator() |
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{ |
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return $this->_namespaceSeparator; |
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} |
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/** |
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* Sets the namespace separator used by classes in the namespace of this class loader. |
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* |
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* @param string $sep The separator to use. |
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*/ |
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public function setNamespaceSeparator($sep) |
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{ |
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$this->_namespaceSeparator = $sep; |
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} |
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/** |
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* Gets the base include path for all class files in the namespace of this class loader. |
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* |
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* @return string $includePath |
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*/ |
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public function getIncludePath() |
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{ |
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return $this->_includePath; |
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} |
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/** |
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* Sets the base include path for all class files in the namespace of this class loader. |
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* |
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* @param string $includePath |
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*/ |
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public function setIncludePath($includePath) |
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{ |
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$this->_includePath = $includePath; |
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} |
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/** |
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* Gets the file extension of class files in the namespace of this class loader. |
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* |
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* @return string $fileExtension |
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*/ |
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public function getFileExtension() |
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{ |
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return $this->_fileExtension; |
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} |
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/** |
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* Sets the file extension of class files in the namespace of this class loader. |
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* |
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* @param string $fileExtension |
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*/ |
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public function setFileExtension($fileExtension) |
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{ |
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$this->_fileExtension = $fileExtension; |
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} |
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/** |
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* Installs this class loader on the SPL autoload stack. |
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*/ |
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public function register() |
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{ |
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spl_autoload_register([$this, 'loadClass'], true, $this->_prepend); |
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} |
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/** |
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* Uninstalls this class loader from the SPL autoloader stack. |
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*/ |
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public function unregister() |
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{ |
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spl_autoload_unregister([$this, 'loadClass']); |
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} |
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/** |
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* Loads the given class or interface. |
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* |
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* @param string $className The name of the class to load. |
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* @return void |
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*/ |
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public function loadClass($className) |
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{ |
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if (!in_array($className, $this->_excluded) && |
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(null === $this->_namespace |
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|| 0 === strpos($className, $this->_namespace . $this->_namespaceSeparator)) |
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) { |
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$fileName = ''; |
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if (false !== ($lastNsPos = strripos($className, $this->_namespaceSeparator))) { |
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$namespace = substr($className, 0, $lastNsPos); |
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$className = substr($className, $lastNsPos + 1); |
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$fileName = str_replace($this->_namespaceSeparator, DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR; |
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} |
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$fileName .= str_replace('_', DIRECTORY_SEPARATOR, $className) . $this->_fileExtension; |
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require ($this->_includePath !== null ? $this->_includePath . DIRECTORY_SEPARATOR : '') . $fileName; |
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} |
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} |
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} |