PHP Framework-PHP namespace usage eliminates the role of include and require

For example, 2 classes of files

a.phpnamespace A;class Test1{}b.phpnamespace B;class Test2{}

So how do you write it in c.php? is to write

include('a.php');$c = new \A\Test1()

or a direct

use A;$c = new \A\Test1()

Reply content:

For example, 2 classes of files

a.phpnamespace A;class Test1{}b.phpnamespace B;class Test2{}

So how do you write it in c.php? is to write

include('a.php');$c = new \A\Test1()

or a direct

use A;$c = new \A\Test1()

No, continue to include only reduces the likelihood of the XXXX naming conflict in the new xxxxx in different files

namespaces only solve the problem of duplicate names, and you also need to introduce files. Of course, you can also use composer for package management.

Landlord, look at the psr-4 and psr-0.
File loading and namespaces are two different things. Automatic loading is possible without the use of namespaces.
About automatic loading can be seen below:

Spl-autoload-register

They are not a concept at all. Include is the introduction of files, namespaces are encapsulated, classes are categorized
c.php notation:

include('a.php');use A\Test1;$c = new Test1();

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