PHP Class Auto-loading method _php Tutorial

How to automatically load PHP classes

Before PHP5, each PHP framework, if it was to implement the automatic loading of classes, would typically implement a class or function that iterates through the directory and automatically loads all files that conform to the Convention rules by some Convention. Of course, PHP5 's previous support for object-oriented is not very good, and the use of classes is not very frequent now. Let's go into the details.

PHP class Automatic Loading method

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Class Inload { /** * Class is automatically loaded, no need to be called by the developer * * @param string $class class file */ Private Function AutoLoad ($class) { if (empty ($class)) { throw new Qexception (' Load file does not exist '. $class); } Else { Require _spring_. ' /_core/springmap.php '; Frame map if (! file_exists ($source [$class] [' file ']) { throw new Qexception (' Load file does not exist '. $class); } Require $source [$class] [' file ']; } } /** * Register or unregister an automatic class loading method * * This method references the Zend Framework * * @param string $class classes that provide automatic onboarding services * @param boolean $enabled Enable or disable the service */ Private Function registerautoload ($class = ' interpreter ', $enabled = True) { if (!function_exists (' Spl_autoload_register ')) { throw new Qexception (' Spl_autoload does not exist for this PHP installation '); } if ($enabled = = = True) { Spl_autoload_register (Array ($class, ' autoload ')); } Else { Spl_autoload_unregister (Array ($class, ' autoload ')); } } /** * destructor */ Public Function __destruct () { Self::registerautoload (' interpreter ', false); }

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