Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
Selected Reading
PHP Defining namespace
Introduction
Declaration of class, function and constants inside a namespace affects its acess, although any other PHP code can be present in it. PHP's namespace keyword is used to declare a new namespace. A file with .php extension must have namespace declaration in very first line after <?php tag, before any other code such as HTML script.
Example
<?php
namespace myspace;
class myclass{
//
}
function hello() {
echo "Hello World
";
}
?>
If namespace declaration is not at the top of file, PHP parser throws fatal error
Example
<html>
<body>
Hello world
<?php
namespace myspace;
function hello() {
echo "Hello World
";
}
use myspace;
myspace\hello();
?>
</body>
</html>
?>
Output
Above code now returns name following error
PHP Fatal error: Namespace declaration statement has to be the very first statement or after any declare call in the script
Only declare construct can appear before namespace declaration
Example
<?php
declare (strict_types=1);
namespace myspace;
function hello() {
echo "Hello World
";
}
use myspace;
myspace\hello();
?> 
Updated on: 2020-09-18T09:21:16+05:30
149 Views
Advertisements