README

A PHP library to manipulate arrays, numbers, and strings using a fluent interface.

Installation

composer require michaelrushton/types

Documentation

The classes in this library are wrappers for the native array, math, and string functions. Method names mostly use the native function names but with any underscores and str or array prefixes removed.

use function MichaelRushton\Types\arr;

$array = arr(["d", "c", "b", "a"])
->push("e")
->sort()
->map("strtoupper");

print_r($array());
/*
Array
(
    [0] => A
    [1] => B
    [2] => C
    [3] => D
    [4] => E
)
*/

use function MichaelRushton\Types\num;

$num = num(4)
->pow(4)
->fdiv(10)
->floor();

echo $num;
// 25

use function MichaelRushton\Types\str;

$string = str("this is a string")
->ucwords()
->replace(" ", "")
->lcfirst();

echo $string;
// thisIsAString

Two notable exceptions to the naming convention in the Arr class are advance which is used to call next and contains which is used to call in_array.

$arr = arr([1, 2, 3]);

var_dump($arr->contains(1));
// bool(true)

var_dump($arr->advance());
// int(2)

Methods are chainable even when switching between arrays, numbers, and strings.

echo str("here are words")
->explode(" ")
->merge(["and", "more", "words"])
->count()
->pow(2);
// 36

Some methods are not chainable by default.

echo str("example")->len();
// 7

These methods can be made to be chainable by passing a final $return argument by reference.

echo str("example")->len($length);
// example

echo $length->add(1);
// 8

Each class provides a printr, vardump, and clone method to call print_r, var_dump, and clone respectively. The Num and Str classes provide an echo method to call echo.

$str = arr(["a", "b", "c"])
->printr()
->clone($arr)
->implode(",")
->vardump()
->toupper()
->echo();
/*
Array
(
    [0] => a
    [1] => b
    [2] => c
)
string(5) "a,b,c"
A,B,C
*/

$arr->printr();
/*
Array
(
    [0] => a
    [1] => b
    [2] => c
)
*/

To return the underlying value, invoke the object as a function.

$str = str("example")->toupper()();

var_dump($str);
// string(7) "EXAMPLE"

If the final method in the chain does not require any arguments then calling it as a property will also return the underlying value.

$str = str("example")->toupper;

var_dump($str);
// string(7) "EXAMPLE"

Arithmetic in other bases

The Num class can work in any base between 2 and 36 by passing the base as the second argument. When working in anything other than base 10 the number will be returned as a string.

$num = num("-f.ab", 16)
->mul(10); // 10 as a base 10 number

var_dump($num());
// string(6) "-9c.ae"

$num = num("-f.ab", 16)
->mul(num(10, 16)); // 10 as a base 16 number

var_dump($num());
// string(5) "-fa.b"

The bin, oct, dec, and hex methods can be used to convert the number to base 2, base 8, base 10, and base 16 respectively. The baseconvert method can be used to convert the number to the given base.

$num = num("-f.ab", 16);

echo $num->bin;
// -1111.10101011

echo $num->oct;
// -17.526

echo $num->dec;
// -15.66796875

echo $num->hex;
// -f.ab

echo $num->baseconvert(36);
// -f.o1or

API reference

Arr
Num
Str

Extending the library

To extend the library call the extend static method on any of the classes, passing it a child class.

use MichaelRushton\Types\Str;

Str::extend(new class extends Str
{

  public function camelcase(): static
  {

    return $this->ucwords()
    ->replace(" ", "")
    ->lcfirst();

  }

});

echo str("this is a string")->camelcase;
// thisIsAString

michaelrushton / types

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