Usage instructions

sabre/uri is a super lightweight package that helps working with URIs. It provides the following functions, all in the Sabre\Uri namespace:

Resolve

The resolve function allows you to expand a relative URI in a full one, in a similar way a browser would.

Example

use Sabre\Uri;

$base = 'http://example.org/foo/bar/';
$new = '../hello';

echo Uri\resolve($base, $new);
// Output: http://example.org/foo/hello

A few more inputs and outputs:

Normalize

There are many ways to specify URIs that all point to the same thing. The normalize function helps you make these URIs consistent with each other, which in turn allows you to make better comparisons.

For example, these urls all point to the same resource:

• http://example.org/~foo/
• HTTP://example.ORG/~foo/ Some parts are case-insensitive.
• http://example.org:80/~foo/ Default ports.
• http://example.org/%7Efoo/ Percent-encoding.
• http://example.org/%7efoo/ Percent-encoding using lowercase for hex numbers.
• http://example.org/bar/./../foo/ Badly expanded relative urls.

Example

use Sabre\Uri;

$input = 'HTTP://example.org:80/%7efoo/./bar/';

echo Uri\normalize($input);
// Output: http://example.org/~foo/bar/

Parse

The parse function is a slightly modified version of PHP's parse_url.

The difference is that this function returns the entire array of url parts, even if those parts are not set.

Example

use Sabre\Uri;

$input = '/foo/bar';
print_r(
    Uri\parse($input)
);

The above example will output:

Array
(
    [scheme] =>
    [host] =>
    [path] => '/foo/bar'
    [port] =>
    [user] =>
    [query] =>
    [fragment] =>
)

Undefined parts are returned as null. This has the benefit that it makes it a lot easier to deal with these arrays in if and ternary statements.

Build

The build function takes the output of parse or parse_url() and creates a new url.

It's basically the reverse operation of parse.

Split

The split function takes a path and returns the basename() and dirname() components.

Example

use Sabre\Uri;

$input = "/path/to/file/";

list(
    $parent,
    $basename
) = Uri\split($input);

echo $parent; // output : /path/to
echo $basename; // output : file

Why not basename() and dirname()?

1. The PHP functions are locale-aware and will start behaving differently depending on PHP's locale setting.
2. The PHP functions will use the backslash as the separator on Windows.
3. The PHP functions behave a bit oddly if there is only one path component, which require special casing.