e

a.php

@@ -0,0 +1,23 @@
+<?php
+
+
+function version($oldVersion, $newVersion): bool
+{
+	$first = explode('.', $oldVersion);
+	$end = explode('.', $newVersion);
+	while (count($first) > 0) {
+		$shift = (int)array_shift($first);
+		$endShift = (int)array_shift($end);
+		if ($endShift == $shift) {
+			continue;
+		}
+		if ($endShift < $shift) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+	return false;
+}
+
+var_dump(version('1.4.4','1.4.3'));