DR Utility Classes

A library with everyday use classes and methods:

Arrays

• first - Get the first element of an array, exception otherwise.
• firstOrNull - Get the first element of an array, null otherwise.
• last - Get the last element of an array, exception otherwise.
• lastOrNull - Get the last element of an array, null otherwise.
• find - Find the first element in an array that matches a predicate, exception otherwise.
• findOrNull - Find the first element in an array that matches a predicate, null otherwise.
• contains - Test if the given value is contained within items. Supports EquatableInterface.
• diff - Get the difference between two arrays. Supports ComparableInterface.
• explode - Explode a string or null into an array, with exploding empty string to empty array.
• mapAssoc - Map an array to a new array using a callback, preserving keys.
• reindex - Reindex an array with new keys based on the result of the callback.
• groupBy - Group items by the given return value of the callback.
• remove - Remove an element from an array based on the callback. Supports EquatableInterface.
• removeKey - Remove an element from an array based on the key.
• removeKeys - Remove multiple elements from an array based on the keys.
• removeTypes - Filters an array by removing all values that match the provided types.
• removeNull - Filters an array by removing all null values.
• search - Find the key of an element in an array or false otherwise. Supports EquatableInterface.
• unique - Remove duplicate values from an array. Supports EquatableInterface.
• wrap - Wrap a value in an array, unless it is already an array.

Assert

Fluent assertion methods, inspired by webmozart/assert:

• null
• notNull
• isArray
• inArray
• isCallable
• resource
• object
• scalar
• integer
• numeric
• float
• string
• startsWith
• notStartsWith
• endsWith
• notEndsWith
• boolean
• true
• false
• notFalse
• nonEmptyString
• isInstanceOf
• fileExists
• file
• directory
• readable
• writable

Example

$value = Assert::notNull($this->repository->find(123));

Installation

composer require digitalrevolution/utils

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