PHP automatic loading AutoLoad mechanism sample sharing _php Tutorial

1, Custom function

2,spl_autoload_register ()

Copy the Code code as follows:
liuyuan@ebuinfo:/var/www/phpgcs/php_autoload$ LL./*
-rw-rw-r--1 Liuyuan Liuyuan 11:39./func_autoload.php
-rw-rw-r--1 Liuyuan Liuyuan 906 Feb 11:28./spl_autoload.php

./include:
Total 16
Drwxrwxr-x 2 Liuyuan Liuyuan 4096 Feb 19 11:42.
Drwxrwxr-x 3 Liuyuan Liuyuan 4096 Feb 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 bclass.php

First look at the Custom Function mode:

Copy the Code code as follows:
Define (' EOL ', (Php_sapi = = ' cli ')? Php_eol: " );
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 ());
?>

The results of the operation are as follows:

Copy the Code code as follows:
liuyuan@ebuinfo:/var/www/phpgcs/php_autoload$ PHP func_autoload.php
Array
(
[0] =/var/www/phpgcs/php_autoload/func_autoload.php
)

.:/ Usr/share/php:/usr/share/pear
AClass is loaded
Bclass is loaded
Array
(
[0] =/var/www/phpgcs/php_autoload/func_autoload.php
[1] =/var/www/phpgcs/php_autoload/include/aclass.php
[2] =/var/www/phpgcs/php_autoload/include/bclass.php
)

The second way:

Copy the Code code as follows:
Class myloader{
public static function AutoLoad ($className) {
$filename = './include/'. $className. PHP ';
if (file_exists ($filename)) {
Include_once $filename;
}else{
Exit (' no file ');
}
}
}

Define (' EOL ', (Php_sapi = = ' cli ')? Php_eol: '
');

Spl_autoload_register (Array (' Myloader ', ' autoload '));

/**
The *__autoload method is invalidated after spl_autoload_register because the Autoload_func function pointer is pointing to the Spl_autoload method
* The _autoload method can be added to the Autoload_functions list by the following method
*/
Spl_autoload_register (' __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;
?>

The results of the operation are as follows:

Copy the Code code as follows:
liuyuan@ebuinfo:/var/www/phpgcs/php_autoload$ PHP spl_autoload.php
AClass is loaded
Array
(
[0] =/var/www/phpgcs/php_autoload/spl_autoload.php
[1] =/var/www/phpgcs/php_autoload/include/aclass.php
)

Bclass is loaded

http://www.bkjia.com/PHPjc/825273.html www.bkjia.com true http://www.bkjia.com/PHPjc/825273.html techarticle 1, Custom Function 2,spl_autoload_register () Copy the Code code as follows: liuyuan@ebuinfo:/var/www/phpgcs/php_autoload$ LL./*-rw-rw-r--1 Liuyuan Liuyuan 11:39./func ...

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