note 67930 added to language.oop5.autoload

While using an "autoloading" method you should pay attention to variables scope. Because of new file will be included INSIDE of magic function __autoload - all of declared in such file global scope variables will be only available within this function and nowhere else. This will cause strange behaviour in some cases. For example: file bar.class.php: <?php $somedata = 'Some data'; /* global scope in common way */ class bar { function __construct() { global $somedata; /* reference to global scope variable */ if ( isset($somedata) ) { var_dump($somedata); } else { die('No data!'); } } } ?> Attempt to load this file in common way: <?php require 'bar.class.php'; $foo = new bar(); ?> this will output (as expected): string(9) "Some data" But in case of __autoload: <?php function __autoload($classname) { require $classname . '.class.php'; } $foo = new bar(); ?> you could expect that this script will return the same but no, it will return "No data!", because defenition of $somedata after requiring treats as local within user-defined function __autoload(). ---- Server IP: 195.222.164.18 Probable Submitter: 85.21.236.46 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/language.oop5.autoload.php Edit -- http://master.php.net/note/edit/67930 Del: integrated -- http://master.php.net/note/delete/67930/integrated Del: useless -- http://master.php.net/note/delete/67930/useless Del: bad code -- http://master.php.net/note/delete/67930/bad+code Del: spam -- http://master.php.net/note/delete/67930/spam Del: non-english -- http://master.php.net/note/delete/67930/non-english Del: in docs -- http://master.php.net/note/delete/67930/in+docs Del: other reasons-- http://master.php.net/note/delete/67930 Reject -- http://master.php.net/note/reject/67930 Search -- http://master.php.net/manage/user-notes.php