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<title>[41178] trunk/src/wp-includes: General: Move the `__autoload()` compat function into its own file to prevent deprecated notices being thrown by the compiler in PHP 7.2.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/41178">41178</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/41178","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>johnbillion</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2017-07-28 01:14:03 +0000 (Fri, 28 Jul 2017)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>General: Move the `__autoload()` compat function into its own file to prevent deprecated notices being thrown by the compiler in PHP 7.2.
The `__autoload()` function is deprecated in PHP 7.2, which means WordPress' own `__autoload()` compat function for PHP 5.2 needs to be moved into a separate file to prevent the PHP 7.2 compiler from complaining.
Props ayeshrajans
See <a href="https://core.trac.wordpress.org/ticket/40109">#40109</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludescompatphp">trunk/src/wp-includes/compat.php</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunksrcwpincludessplautoloadcompatphp">trunk/src/wp-includes/spl-autoload-compat.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludescompatphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/compat.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/compat.php 2017-07-27 21:31:40 UTC (rev 41177)
+++ trunk/src/wp-includes/compat.php 2017-07-28 01:14:03 UTC (rev 41178)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -488,93 +488,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> endif;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-// SPL can be disabled on PHP 5.2
-if ( ! function_exists( 'spl_autoload_register' ) ):
- $_wp_spl_autoloaders = array();
-
- /**
- * Autoloader compatibility callback.
- *
- * @since 4.6.0
- *
- * @param string $classname Class to attempt autoloading.
- */
- function __autoload( $classname ) {
- global $_wp_spl_autoloaders;
- foreach ( $_wp_spl_autoloaders as $autoloader ) {
- if ( ! is_callable( $autoloader ) ) {
- // Avoid the extra warning if the autoloader isn't callable.
- continue;
- }
-
- call_user_func( $autoloader, $classname );
-
- // If it has been autoloaded, stop processing.
- if ( class_exists( $classname, false ) ) {
- return;
- }
- }
- }
-
- /**
- * Registers a function to be autoloaded.
- *
- * @since 4.6.0
- *
- * @param callable $autoload_function The function to register.
- * @param bool $throw Optional. Whether the function should throw an exception
- * if the function isn't callable. Default true.
- * @param bool $prepend Whether the function should be prepended to the stack.
- * Default false.
- */
- function spl_autoload_register( $autoload_function, $throw = true, $prepend = false ) {
- if ( $throw && ! is_callable( $autoload_function ) ) {
- // String not translated to match PHP core.
- throw new Exception( 'Function not callable' );
- }
-
- global $_wp_spl_autoloaders;
-
- // Don't allow multiple registration.
- if ( in_array( $autoload_function, $_wp_spl_autoloaders ) ) {
- return;
- }
-
- if ( $prepend ) {
- array_unshift( $_wp_spl_autoloaders, $autoload_function );
- } else {
- $_wp_spl_autoloaders[] = $autoload_function;
- }
- }
-
- /**
- * Unregisters an autoloader function.
- *
- * @since 4.6.0
- *
- * @param callable $function The function to unregister.
- * @return bool True if the function was unregistered, false if it could not be.
- */
- function spl_autoload_unregister( $function ) {
- global $_wp_spl_autoloaders;
- foreach ( $_wp_spl_autoloaders as &$autoloader ) {
- if ( $autoloader === $function ) {
- unset( $autoloader );
- return true;
- }
- }
-
- return false;
- }
-
- /**
- * Retrieves the registered autoloader functions.
- *
- * @since 4.6.0
- *
- * @return array List of autoloader functions.
- */
- function spl_autoload_functions() {
- return $GLOBALS['_wp_spl_autoloaders'];
- }
-endif;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/**
+ * Polyfill for the SPL autoloader. In PHP 5.2 (but not 5.3 and later), SPL can
+ * be disabled, and PHP 7.2 raises notices if the compiler finds an __autoload()
+ * function declaration. Function availability is checked here, and the
+ * autoloader is included only if necessary.
+ */
+if ( ! function_exists( 'spl_autoload_register' ) ) {
+ require_once ABSPATH . WPINC . '/spl-autoload-compat.php';
+}
</ins></span></pre></div>
<a id="trunksrcwpincludessplautoloadcompatphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: trunk/src/wp-includes/spl-autoload-compat.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/spl-autoload-compat.php (rev 0)
+++ trunk/src/wp-includes/spl-autoload-compat.php 2017-07-28 01:14:03 UTC (rev 41178)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,100 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * Polyfill for SPL autoload feature. This file is separate to prevent compiler notices
+ * on the deprecated __autoload() function.
+ *
+ * See https://core.trac.wordpress.org/ticket/41134
+ *
+ * @package PHP
+ * @access private
+ */
+
+if ( ! function_exists( 'spl_autoload_register' ) ) {
+ $_wp_spl_autoloaders = array();
+
+ /**
+ * Autoloader compatibility callback.
+ *
+ * @since 4.6.0
+ *
+ * @param string $classname Class to attempt autoloading.
+ */
+ function __autoload( $classname ) {
+ global $_wp_spl_autoloaders;
+ foreach ( $_wp_spl_autoloaders as $autoloader ) {
+ if ( ! is_callable( $autoloader ) ) {
+ // Avoid the extra warning if the autoloader isn't callable.
+ continue;
+ }
+
+ call_user_func( $autoloader, $classname );
+
+ // If it has been autoloaded, stop processing.
+ if ( class_exists( $classname, false ) ) {
+ return;
+ }
+ }
+ }
+
+ /**
+ * Registers a function to be autoloaded.
+ *
+ * @since 4.6.0
+ *
+ * @param callable $autoload_function The function to register.
+ * @param bool $throw Optional. Whether the function should throw an exception
+ * if the function isn't callable. Default true.
+ * @param bool $prepend Whether the function should be prepended to the stack.
+ * Default false.
+ */
+ function spl_autoload_register( $autoload_function, $throw = true, $prepend = false ) {
+ if ( $throw && ! is_callable( $autoload_function ) ) {
+ // String not translated to match PHP core.
+ throw new Exception( 'Function not callable' );
+ }
+
+ global $_wp_spl_autoloaders;
+
+ // Don't allow multiple registration.
+ if ( in_array( $autoload_function, $_wp_spl_autoloaders ) ) {
+ return;
+ }
+
+ if ( $prepend ) {
+ array_unshift( $_wp_spl_autoloaders, $autoload_function );
+ } else {
+ $_wp_spl_autoloaders[] = $autoload_function;
+ }
+ }
+
+ /**
+ * Unregisters an autoloader function.
+ *
+ * @since 4.6.0
+ *
+ * @param callable $function The function to unregister.
+ * @return bool True if the function was unregistered, false if it could not be.
+ */
+ function spl_autoload_unregister( $function ) {
+ global $_wp_spl_autoloaders;
+ foreach ( $_wp_spl_autoloaders as &$autoloader ) {
+ if ( $autoloader === $function ) {
+ unset( $autoloader );
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Retrieves the registered autoloader functions.
+ *
+ * @since 4.6.0
+ *
+ * @return array List of autoloader functions.
+ */
+ function spl_autoload_functions() {
+ return $GLOBALS['_wp_spl_autoloaders'];
+ }
+}
</ins></span></pre>
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