The AutoLoad of PHP basics

PHP automatic loading autoload mechanism is very important, here do 2 small exercises   original articles, reproduced please note: Http://www.cnblogs.com/phpgcs   file structure as follows, 2 ways to implement automatic loading   1, custom functions   2,spl_autoload_register ()     liuyuan@ebuinfo:/var/www/phpgcs/php_autoload$ LL./*-rw-rw-r-- 1 Liuyuan Liuyuan  800 Feb 11:39./func_autoload.php-rw-rw-r--1 Liuyuan Liuyuan  906 Feb. 11:28 oload.php  /include:total drwxrwxr-x 2 Liuyuan liuyuan 4096 Feb-11:42./drwxrwxr-x 3 Liuyuan Liuyuan 4096 F EB 19 11:43. -rw-rw-r--1 Liuyuan Liuyuan  142 Feb 11:42 aclass.php-rw-rw-r--1 Liuyuan Liuyuan  143 Feb-11:42 BClas s.php   First look at the Custom Function mode:   <?php     define (' EOL ', (php_sapi = ' cli ')? Php_eol: ' </br> ');     Print_r (Get_included_files ());     Echo EOL;     Print get_include_path ();     Echo EOL;    //set_include_path (Get_include_path (). Path_separator. ' /var/www/ly_php/php_spl/include/');    //set_include_patH (dirname (__file__). /include ');    //set_include_path (dirname (__file__). /include/');       function __autoload ($className) {        $filename = './include/'. $className. ' PHP ';        //$filename = './include/'. $className. PHP ';        //$filename = '/var/www/ly_php/php_spl/include/'. $className. PHP ';         if (file_exists ($filename)) {            include_once $filename;        }else{            exit (' no file ');         }    }       $a = new AClass ();     $b = new Bclass ();     Print_r (Get_included_files ())?> running results are as follows:   + View Code       The second way:   &NBS P <?php     class myloader{        public static function AutoLoad ($className) {  &NB Sp         $filename = './include/'. $className. PHP ';             if (file_exists ($filename)) {              &NB Sp Include_once $filename;            }else{                exit (' no file ');                     {   }       define (' EOL ', (Php_sapi = = ' cli ')? Php_eol: ' <br/> ');       Spl_autoload_register (Array (' Myloader ', ' autoload '));      /**     *__autoload method will fail after spl_autoload_register because the AUTOLOAD_FUNC function pointer has pointed to the Spl_autoload method     * You can add the _autoload method to the Autoload_functions list    /   //spl_autoload_register in the following ways (' __autoload ');         error_reporting (e_all^e_notice^e_warning^e_error);     error_reporting (E_notice e_warning);       $a = new ACLASS ();     Print_r (Get_included_files ());     Echo EOL;     $b = new Bclass (); 　　     echo EOL;?>