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Utilities

A tiny library that provides very simple utility classes.

This provides a simple singleton trait to go on classes, URL builder class and a few different classes/traits around collections.

Dependencies

• PHP 8.0+
• Composer

Installation

Use Composer

Usage

Singleton

Simply add \JPI\Utils\Singleton to any class, this will make the constructor protected so the class can't be instantiated outside the singleton getter, also provides a get method which handles the class being singleton.

URL

\JPI\Utils\URL provides 5 static helper methods (which should be self-explanatory):

• removeLeadingSlash(string): string
• removeTrailingSlash(string): string
• removeSlashes(string): string
• addLeadingSlash(string): string
• addTrailingSlash(string): string

\JPI\Utils\URL as a class instance provides building a URL, the class has a single optional string argument, which you can pass if you know what the starting URL should be. You then have the following methods to build on top of this starting URL:

• setScheme(string|null)
• setHost(string|null)
• setPath(string|null)
• addPath(string)
• setQueryParams(array)
• setQueryParam(string, string|array)
• removeQueryParam(string)
• setFragment(string|null)

They all come with equivalent getter methods:

• getScheme: string|null
• getHost: string|null
• getPath: string|null
• getQueryParams: array
• getFragment: string|null

Also, a getQuery: string|null method which transforms the query params to an encoded query string to be used in a URL (minus the ?).

Lastly, the class implements \Stringable so you can cast the instance to a string or can manually call build method to get the URL as a string.

Collections

Here we have \JPI\Utils\Collection, \JPI\Utils\Collection\Immutable & \JPI\Utils\Collection\Paginated.

A collection works like a normal array as it implements \ArrayAccess, \Countable & \IteratorAggregate just with some extra methods (all should be self-explanatory):

• isset(string|int $key)
• get(string|int $key, $default = null): mixed
• getCount(): int
• each(callable)
• pluck(string $toPluck, ?string $keyedBy = null): CollectionInterface
• groupBy(string $groupByKey): CollectionInterface

The Collection class also has the following methods (these exist on Immutable and Paginated but will throw an exception)

• add(mixed $item)
• set(string|int $key, mixed $item)
• unset(string|int $key)
• clear

A Paginated instance has the following additional methods:

• getTotalCount(): int
• getLimit(): int get what limit was applied when getting the result
• getPage(): int get what page number was applied when getting the result

We also have interfaces in case you want to create your own versions, \JPI\Utils\CollectionInterface, \JPI\Utils\Collection\ImmutableInterface & \JPI\Utils\Collection\PaginatedInterface (which extends ImmutableInterface). If you do create your own collection classes, and want to make an immutable or paginated version see \JPI\Utils\Collection\ImmutableTrait and \JPI\Utils\Collection\PaginatedTrait.

Support

If you found this library interesting or useful please spread the word about this library: share on your socials, star on GitHub, etc.

If you find any issues or have any feature requests, you can open an issue or email me @ jahidulpabelislam.com :smirk:.

Authors

• Jahidul Pabel Islam [email protected]

Licence

This module is licensed under the General Public Licence - see the licence file for details.