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PHP Declaring sub-namespaces
Introduction
It is possible to create namespaces inside a namespace. Just as a directory in file system can contain sub directories in a heriarchical structure, sub-namespaces can be arranged in hierarchy. The backslash character \ is used to define the relationship between top level and sub-level namespace,
In this example toplevel namespace myspace contains two sub-namespaces space1 and space2. In order to access functions/classes inside a subnamespace, first make it available by use keyword
Example
<?php
namespace myspace\space1;
function hello() {
echo "Hello World from space1\n";
}
namespace myspace\space2;
function hello(){
echo "Hello World from space2\n";
}
use myspace\space1;
hello();
use myspace\space2;
hello();
?>Output
Above code shows following output
Hello World from space2 Hello World from space2
Updated on 18-Sep-2020 09:35:24
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