From 273a85d99cc7b8b170f5d45cd4eb2f4bb0cda445 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lajos=20M=C3=A9sz=C3=A1ros?= <m_lajos@hotmail.com>
Date: Tue, 27 Jul 2021 16:14:22 +0200
Subject: [PATCH] Introduced N for numeric functions

---
 src/N.php | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/N.php

diff --git a/src/N.php b/src/N.php
new file mode 100644
index 0000000..ce21630
--- /dev/null
+++ b/src/N.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Shovel;
+
+class N {
+    // N::isIntLike('12')      // true
+    // N::isIntLike(3.14)      // true
+    // N::isIntLike(7)         // true
+    // N::isIntLike('23.5')    // false
+    // N::isIntLike([1, 2, 3]) // false
+    public static function isIntLike($n): bool
+    {
+        return is_int($n) || is_float($n) || (is_string($n) && intval($n) . '' === $n);
+    }
+
+    public static function toInt($n): ?int
+    {
+        return $n === null ? null : intval($n);
+    }
+}