note 101385 added to language.variables.scope
| From: | Dave at osu1 dot php dot net | Date: | Tue, 14 Dec 2010 06:10:05 +0000 |
| Subject: | note 101385 added to language.variables.scope | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-174894@lists.php.net to get a copy of this message | ||
Regarding "php at keith tyler dot com" note about global scope - the $filename variable is
clearly not actually in global scope.
It is in the scope that phpunit runs the unit tests, which is local scope.
Your "fix" simply creates a global variable called "filename" with the contents
of the *local* variable "filename".
To illustrate:
file1.php:
<?php
class Foo {
static public function bar() {
global $filename;
return $filename;
}
}
?>
run.php:
<?php
$filename = 'mia';
include('file1.php');
assert( null === Foo::bar() );
?>
In the "run.php" file, Foo::bar() will return NULL, because $filename is in local scope.
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Manual Page -- http://www.php.net/manual/en/language.variables.scope.php
Edit -- https://master.php.net/note/edit/101385
Del: integrated -- https://master.php.net/note/delete/101385/integrated
Del: useless -- https://master.php.net/note/delete/101385/useless
Del: bad code -- https://master.php.net/note/delete/101385/bad+code
Del: spam -- https://master.php.net/note/delete/101385/spam
Del: non-english -- https://master.php.net/note/delete/101385/non-english
Del: in docs -- https://master.php.net/note/delete/101385/in+docs
Del: other reasons-- https://master.php.net/note/delete/101385
Reject -- https://master.php.net/note/reject/101385
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