Troubleshooting “The use statement with non-compound name … has no effect”

by

PHP’s use isn’t the same as C++’s using namespace; it allows you to define an alias, not to “import” a namespace and thus henceforth omit the namespace qualifier altogether.

So, you could do:

use Blog\Article as BA;

… to shorten it, but you cannot get rid of it entirely.

Consequently, use Blog is useless, but I believe you could write:

use \ReallyLongNSName as RLNN;

Note that you must use a leading \ here to force the parser into knowing that ReallyLongNSName is fully-qualified. This isn’t true for Blog\Article, which is obviously already a chain of namespaces:

Note that for namespaced names (fully qualified namespace names containing namespace separator, such as Foo\Bar as opposed to global names that do not, such as FooBar), the leading backslash is unnecessary and not recommended, as import names must be fully qualified, and are not processed relative to the current namespace.

More Related Contents:

  1. What does a \ (backslash) do in PHP (5.3+)?
  2. Parse XML with Namespace using SimpleXML [duplicate]
  3. What are namespaces?
  4. PHP library for parsing XML with a colons in tag names? [duplicate]
  5. parse an XML with SimpleXML which has multiple namespaces [duplicate]
  6. PHP namespace simplexml problems
  7. Can PHP namespaces contain variables?
  8. How to use objects from other namespaces and how to import namespaces in PHP
  9. Unexpected character in input: ‘\’ (ASCII=92) state=1
  10. Autoloading classes in PHPUnit using Composer and autoload.php
  11. PHP how to import all classes from another namespace
  12. Namespace in PHP CodeIgniter Framework
  13. Using namespaces with classes created from a variable
  14. How to get all class names inside a particular namespace?
  15. PHP namespace with Dynamic class name
  16. How to use “root” namespace of php?
  17. SimpleXML: Working with XML containing namespaces
  18. How to use composer packages in codeigniter?
  19. PHP namespaces and “use”
  20. Use php namespace inside function
  21. PHP adding custom namespace using autoloader from composer
  22. SimpleXML SOAP response Namespace issues
  23. How to get attribute of node with namespace using SimpleXML? [closed]
  24. Class ‘App\Http\Controllers\DB’ not found and I also cannot use a new Model
  25. Using namespaces in Laravel 4
  26. PHP namespace PDO not found
  27. Facebook SDK v4 for PHP Minimal Example
  28. unexpected ‘use’ (T_USE) when trying to use composer
  29. How to create this type of JSON data from PHP [closed]
  30. What are the best practices for avoiding xss attacks in a PHP site [closed]

Leave a Comment