1 | | <?php |
2 | | /** |
3 | | * Polyfill for SPL autoload feature. This file is separate to prevent compiler notices |
4 | | * on the deprecated __autoload() function. |
5 | | * |
6 | | * See https://core.trac.wordpress.org/ticket/41134 |
7 | | * |
8 | | * @package PHP |
9 | | * @access private |
10 | | */ |
11 | | |
12 | | if ( ! function_exists( 'spl_autoload_register' ) ) { |
13 | | $_wp_spl_autoloaders = array(); |
14 | | |
15 | | /** |
16 | | * Autoloader compatibility callback. |
17 | | * |
18 | | * @since 4.6.0 |
19 | | * |
20 | | * @param string $classname Class to attempt autoloading. |
21 | | */ |
22 | | function __autoload( $classname ) { |
23 | | global $_wp_spl_autoloaders; |
24 | | foreach ( $_wp_spl_autoloaders as $autoloader ) { |
25 | | if ( ! is_callable( $autoloader ) ) { |
26 | | // Avoid the extra warning if the autoloader isn't callable. |
27 | | continue; |
28 | | } |
29 | | |
30 | | call_user_func( $autoloader, $classname ); |
31 | | |
32 | | // If it has been autoloaded, stop processing. |
33 | | if ( class_exists( $classname, false ) ) { |
34 | | return; |
35 | | } |
36 | | } |
37 | | } |
38 | | |
39 | | /** |
40 | | * Registers a function to be autoloaded. |
41 | | * |
42 | | * @since 4.6.0 |
43 | | * |
44 | | * @param callable $autoload_function The function to register. |
45 | | * @param bool $throw Optional. Whether the function should throw an exception |
46 | | * if the function isn't callable. Default true. |
47 | | * @param bool $prepend Whether the function should be prepended to the stack. |
48 | | * Default false. |
49 | | */ |
50 | | function spl_autoload_register( $autoload_function, $throw = true, $prepend = false ) { |
51 | | if ( $throw && ! is_callable( $autoload_function ) ) { |
52 | | // String not translated to match PHP core. |
53 | | throw new Exception( 'Function not callable' ); |
54 | | } |
55 | | |
56 | | global $_wp_spl_autoloaders; |
57 | | |
58 | | // Don't allow multiple registration. |
59 | | if ( in_array( $autoload_function, $_wp_spl_autoloaders ) ) { |
60 | | return; |
61 | | } |
62 | | |
63 | | if ( $prepend ) { |
64 | | array_unshift( $_wp_spl_autoloaders, $autoload_function ); |
65 | | } else { |
66 | | $_wp_spl_autoloaders[] = $autoload_function; |
67 | | } |
68 | | } |
69 | | |
70 | | /** |
71 | | * Unregisters an autoloader function. |
72 | | * |
73 | | * @since 4.6.0 |
74 | | * |
75 | | * @param callable $function The function to unregister. |
76 | | * @return bool True if the function was unregistered, false if it could not be. |
77 | | */ |
78 | | function spl_autoload_unregister( $function ) { |
79 | | global $_wp_spl_autoloaders; |
80 | | foreach ( $_wp_spl_autoloaders as &$autoloader ) { |
81 | | if ( $autoloader === $function ) { |
82 | | unset( $autoloader ); |
83 | | return true; |
84 | | } |
85 | | } |
86 | | |
87 | | return false; |
88 | | } |
89 | | |
90 | | /** |
91 | | * Retrieves the registered autoloader functions. |
92 | | * |
93 | | * @since 4.6.0 |
94 | | * |
95 | | * @return array List of autoloader functions. |
96 | | */ |
97 | | function spl_autoload_functions() { |
98 | | return $GLOBALS['_wp_spl_autoloaders']; |
99 | | } |
100 | | } |
| 1 | <?php |
| 2 | /** |
| 3 | * Polyfill for SPL autoload feature. This file is separate to prevent compiler notices |
| 4 | * on the deprecated __autoload() function. |
| 5 | * |
| 6 | * See https://core.trac.wordpress.org/ticket/41134 |
| 7 | * |
| 8 | * @deprecated 5.3.0 No longer needed as the minimum PHP requirement has moved beyond PHP 5.3. |
| 9 | * |
| 10 | * @package PHP |
| 11 | * @access private |
| 12 | */ |
| 13 | |
| 14 | _deprecated_file( basename( __FILE__ ), '5.3.0', null, 'SPL can no longer be disabled as of PHP 5.3.' ); |