Add support for dev server embedded in PHP >= 5.4

[trustmaster]

PHP >= 5.4 comes with a built-in web server which is easy to use for development when you don't need a real webserver on your computer.

Pros:

• Just run php -S localhost:8888 in a project's directory and your project is up. Ctrl+C to shut it down.
• Easily portable between devices.
• No need to setup Apache/nginx.

Cotonti already installs and runs with the embedded webserver, but SEF URLs don't work yet. This is to be solved.

[trustmaster]

Done. Usage (in console):

cd your/project/directory
php -S localhost:8888

Replace 8888 with any port you like. Note: change $cfg['mainurl'] in datas/config.php if you want to serve an existing project.

[ghost]

On php 5.3 shows a blank page. Perhaps the problem in this line:
$REQUEST_FILENAME = mb_substr(explode('?', $_SERVER['REQUEST_URI'])[0], 1);

[trustmaster]

@devkont, yes, exactly, this is PHP 5.4 syntax. Should be:

$tmp = explode('?', $_SERVER['REQUEST_URI']);
$REQUEST_FILENAME = mb_substr($tmp[0], 1);

[trustmaster]

But php_sapi_name() shouldn't return cli-server on PHP 5.3.

[ghost]

But the error in the syntax of all will be determined (on PHP 5.3).

[trustmaster]

@devkont thanks! Fix committed.

[macik]

Not working in PHP 5.2.17 as used closures (line 24).