README

Named typed constants and predicates — give meaning to magic literals.

A raw '', [], '{}', 0, true, or null carries an unstated intent and gets re-checked defensively all over a codebase (if ($this->delimiter === '')). These tiny static classes give that intent a name and the check a single home.

use JesseGall\PhpTypes\T_String;

$prefix = T_String::empty();              // '' with a name
if (T_String::isEmpty($delimiter)) { … }  // reads as intent

// as a first-class callable
$nonEmpty = array_filter($parts, T_String::isNotEmpty(...));

Types

T_Json predicates are semantic — isEmptyObject('{ }') and isEmptyObject("{\n}") are true (they decode to an empty object), while isEmptyObject('[]') and invalid JSON are false.

Install

composer require jessegall/php-types

Requires PHP 8.2+. Zero runtime dependencies.

Test

composer test