and let’s assume the following content of Bar.php:
// Bar.phpnamespaceOtherDir;useSomeDir\Foo;// This now conflicts the class OtherDir\Foo
If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the
same runtime, you will see a PHP error such as the following:
PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as OtherDir/Foo.php does not necessarily have to be loaded and the
error is only triggered if it is loaded before OtherDir/Bar.php, this problem
might go unnoticed for a while. In order to prevent this error from surfacing,
you must import the namespace with a different alias:
// Bar.phpnamespaceOtherDir;useSomeDir\FooasSomeDirFoo;// There is no conflict anymore.
Loading history...
8
9
class Bot extends Middleware
10
{
11
public function check($patterns)
12
{
13
$agent = new Agent();
14
15
if (!$agent->isRobot()) {
16
return false;
17
}
18
19
if (!$crawlers = config('firewall.middleware.' . $this->middleware . '.crawlers')) {
20
return false;
21
}
22
23
$status = false;
24
25
if (!empty($crawlers['allow']) && !in_array((string) $agent->robot(), (array) $crawlers['allow'])) {
26
$status = true;
27
}
28
29
if (in_array((string) $agent->robot(), (array) $crawlers['block'])) {
Let’s assume that you have a directory layout like this:
and let’s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: