Scalar types as objects for php
This php library requires php extension from https://github.com/nikic/scalar_objects., (*1)
Installation
Run composer require rikudou/scalar-objects., (*2)
Usage
The handlers are automatically registered when you include composer
autoload. That means you can use it immediately with no configuration., (*3)
Since IDEs don't understand the syntax, there are typehint classes
available to help you., (*4)
Examples
<?php
use Rikudou\ScalarObjects\TypeHint\IntegerTypehint;
use Rikudou\ScalarObjects\TypeHint\StringTypehint;
require_once "vendor/autoload.php";
/** @var IntegerTypehint|int $num1 */
$num1 = 5;
/** @var StringTypehint|string $num2 */
$num2 = "10";
// the two variables are not actually objects, the typehints
// are just for IDE completion
var_dump($num1->isInt()); // bool(true)
var_dump($num2->isString()); // bool(true)
var_dump($num2->isNumeric()); // bool(true)
var_dump($num2->isNumber()); // bool(false) - isNumber() returns true only for int and float
var_dump($num1->toString()->length()); // int(1)
/** @var StringTypehint $string */
$string = "This is a test string";
var_dump($string->length()); // int(21);
var_dump($string->capitalize()); // string(21) "This Is A Test String"
var_dump($string->caseInsensitiveCompare("this Is a TESt STRInG")); // int(0)
var_dump($string->toUpper()); // string(21) "THIS IS A TEST STRING"
var_dump($string->toLower()); //string(21) "this is a test string"
As you can see, you can use the scalar values as objects., (*5)
But you can still use them as regular scalar types., (*6)
<?php
use Rikudou\ScalarObjects\TypeHint\IntegerTypehint;
use Rikudou\ScalarObjects\TypeHint\StringTypehint;
require_once __DIR__."/vendor/autoload.php";
/** @var StringTypehint|string $string */
$string = "test";
$string .= "test"; // works without a problem
var_dump($string); // string(8) "testtest"
/** @var IntegerTypehint|int $int1 */
$int1 = 5;
/** @var IntegerTypehint|int $int2 */
$int2 = -10;
/** @var IntegerTypehint|int $int3 */
$int3 = "-15";
var_dump($int1 + $int2->abs()); // int(15)
var_dump($int1 + $int2); // int(-5)
var_dump($int1 + $int2 + $int3->toInt()->abs()); // int(10)
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