laravel-support-helpers

Helper methods in the spirit of Laravel's native Arr and Str. Also offers a fluid num($input) helper method that allows you to manipulate numeric inputs with ease.

Installation

composer require brekitomasson/laravel-support-helpers

Usage

This library can be used in three ways, all offering more or less the same features and functionality. They are:

1. Instantiating the Number class with an input and running methods on the variable.
2. Using the num() helper method.
3. Calling static methods on the Num class.

Note that the second option, the fluid helper method, is merely a shortcut to the first option, and the two are functionally interchangeable. The input is parsed and cleaned - if given as a string, the input is reduced to only the numeric values detected in the string. Decimal points must be stated with periods, as commas in the input string are filtered out. The string '159,99' will be parsed as the whole number 15999.

$number = new \BrekiTomasson\Support\Number('234.22');
$number->add(3)->over(2)->toNumber();
// = 118.61

num('234.22')->add(3)->over(2)->toNumber();
// = 118.61

The static methods are used internally by the library but can be called directly for simple one-off methods:

use BrekiTomasson\Support\Num;

Num::percentOf(13, 49);
// = 26.530612244898

Available Methods

Note that most of these methods return an instance of Number and can be chained one after another. To get the current result, use the ->toNumber() method. The current value will be returned as a float or int based on whether it is a whole number or not.

add()

Increases the current value by the given input.

decimal()

Changes the current value to only the decimal portion of the current value. If the current value is a whole number, replaces the current value with 0. See integer() for the corresponding method.

num(234.56)->decimal()->toNumber()
// = 56

factors()

Returns an array containing the factors of the current value (except 1 and the value itself). Requires the current value to be a whole number, as factors cannot be calculated from values with decimal numbers.

num(39234)->factors()
// = [2, 3, 6, 13, 26, 39, 78, 503, 1006, 1509, 3018, 6539, 13078, 19617]

greaterThan()

Returns true or false depending on if the current value is greater than the given input. See lessThan() for the corresponding method.

num(39)->greaterThan(50)
// = false

inRange()

Returns true or false depending on if the current value is within a range defined by the two given inputs.

Accepts a boolean as a third argument (defaults to true) to determine whether to allow exact matches with the min and max values in the range.

num(50)->inRange(20, 80)
// = true

num(10)->inRange(5, 10, false)
// = false

integer()

Changes the current value to only the integer portion of the current value. If the current value is a whole number, no change is made. See decimal() for the corresponding method. Note that this does not round the current value to the nearest whole number.

num(234.56)->integer()->toNumber()
// = 234

lessThan()

Returns true or false depending on if the current value is less than the given input. See greaterThan() for the corresponding method.

num(39)->lessThan(50)
// = true

over()

Divides the current value by the given input.

num(100)->over(5)->toNumber()
// = 20

percentOf()

Changes the current value to how many percent of the given input it is.

num(30)->percentOf(600)->toNumber()
// = 5

roundToPart()

Rounds the current value to the given input's "parts of one". If the given input is 4, the current value is rounded to the nearest 1/4, or .25. If the given input is 10, the current value is rounded to the nearest tenth. ->roundToPart(1) is functionally equivalent to rounding to the nearest whole number.

num(19.2342)->roundToPart(2)->toNumber()
// = 19

num(19.2342)->roundToPart(3)->toNumber()
// = 19.333333333333

num(19.2342)->roundToPart(10)->toNumber()
// = 19.2

sub()

Reduces the current value by the given input.

times()

Multiplies the current value by the given input.

withinRange()

Returns true or false depending on if the current value is within a given range of a given input. The first argument is the base value and the second argument is the range away from the base value to test.

Accepts a boolean as a third argument (defaults to true) to determine whether to allow exact matches with the min and max values in the range.

num(10)->withinRange(13, 2)
// = false
// Since 10 is not within the range 11-15. 

num(19)->withinRange(15, 5)
// = true
// Since 19 is within the range 10-20.

TODO

The following is a list of things that are missing or incomplete, and which will be added to the library over the next couple of patches/versions. None of these changes are expected to break backwards compatibility.

PRs are always welcome! If you add a method, please update the documentation and the test suite accordingly.

• Aliases for some less obviously named methods.
  • dividedBy() for over()
  • get() for toNumber()
  • gt() for greaterThan()
  • lt() for lessThan()
  • minus() for sub()
  • multipliedBy() for times()
  • plus() for add()
• format() method to permit returning the value in a given format.
• isOdd(), isEven() methods.
• isWhole()
• toInt() and toFloat() to force cast the current value to int or float.
• round() method to return the value to a given number of decimal places.
  • Should return the whole number if called without arguments.
• More mathematical functions.
  • See how https://github.com/degecko/super-number/blob/master/src/SuperNumber.php uses __call() to reference some native PHP methods. Something similar could be done here.
• "percent from" equivalent of the percentOf() method.