Introduced N for numeric functions

meszaros-lajos-gyorgy · Jul 27, 2021 · 273a85d · 273a85d
1 parent d95b1c7
commit 273a85d
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/src/N.php 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);
+    }
+}