Getting a syntax error unexpected T_STRING for namespace line

Question

Well, I keep getting

Parse error: syntax error, unexpected T_STRING in /path/to/index.php on line 2

Googled my arse off and still nuthing, so far the index.php contains:

<?php
namespace Infire; # Line 2
...

I am using PHP 5.1

Any ideas?

Answer 1

The PHP namespace is only supported in PHP 5.3+ version

Check this PHP 5.3.0 Release Announcement

Answer 2

I've found namespaces introduced in PHP 5.3 to suffer from multiple usability problems due to performance trade-offs, limitations of PHP's parser, collisions with other PHP features and unfortunate design decisions.