CODEWITHSUNDEEP
php
user3448187
user3448187

Reputation:

Namespace class name included conflict

I'm building a namespace which uses the same class name as a class that I'm including into the namespace.

require_once 'MyClass.php'; // already declares a class MyClass

namespace foo;

class MyClass {}
class MySubClass extends MyClass {}

How exactly would I do this without getting a "you cannot redeclare class..."?

Upvotes: 3

Views: 485

Answers (1)

Ja͢ck
Ja͢ck

Reputation: 173522

First of all, the namespace declaration must be the first statement; and when you do this, it will just work:

namespace foo;

require_once 'MyClass.php'; // already declares a class MyClass

class MyClass {}
class MySubClass extends MyClass {}

Now, \MyClass refers to the class you have declared in MyClass.php (assuming it was declared without a specific namespace) whereas MyClass refers to the one inside the current namespace.

Alternatively, you can alias it:

namespace foo;

use MyClass as StdMyClass;

require_once 'MyClass.php'; // already declares a class MyClass

class MyClass {}
class MySubClass extends MyClass {}

In this case StdMyClass can be seen as an alias of \MyClass.

Upvotes: 1

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