From fd6dcd3b6368045af31bd1cc4d311d8f812b6522 Mon Sep 17 00:00:00 2001
From: Propaganistas <Propaganistas@users.noreply.github.com>
Date: Fri, 27 Jan 2023 08:39:03 +0100
Subject: [PATCH] Fixes #213

---
 src/PhoneNumber.php       | 14 ++++++++++++--
 tests/PhoneNumberTest.php | 14 ++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/PhoneNumber.php b/src/PhoneNumber.php
index 615c2c2..4ff7772 100644
--- a/src/PhoneNumber.php
+++ b/src/PhoneNumber.php
@@ -272,7 +272,9 @@ protected function filterValidCountry($countries)
             }
         }
 
-        if ($countries = array_filter($countries)) {
+        $countries = array_filter($countries);
+
+        if (! empty($countries)) {
             throw NumberParseException::countryMismatch($this->number, $countries);
         }
 
@@ -375,7 +377,15 @@ public function getPhoneNumberInstance()
      */
     public function numberLooksInternational()
     {
-        return Str::startsWith($this->number, '+');
+        if (empty($this->number)) {
+            return false;
+        }
+
+        if (Str::startsWith($this->number, '+')) {
+            return true;
+        }
+
+        return strpos($this->number, '+', 2) && static::isValidCountryCode(Str::substr($this->number, 0, 2));
     }
 
     /**
diff --git a/tests/PhoneNumberTest.php b/tests/PhoneNumberTest.php
index 30892f8..ad5b149 100644
--- a/tests/PhoneNumberTest.php
+++ b/tests/PhoneNumberTest.php
@@ -109,6 +109,20 @@ public function it_can_format_international_numbers_without_given_country()
         $this->assertEquals('012 34 56 78', $object->format(PhoneNumberFormat::NATIONAL));
     }
 
+    /** @test */
+    public function it_can_format_international_numbers_prefixed_with_correct_country()
+    {
+        $object = new PhoneNumber('BE+3212345678');
+        $this->assertEquals('012 34 56 78', $object->format(PhoneNumberFormat::NATIONAL));
+    }
+
+    /** @test */
+    public function it_can_format_international_numbers_prefixed_with_wrong_country()
+    {
+        $object = new PhoneNumber('US+3212345678');
+        $this->assertEquals('012 34 56 78', $object->format(PhoneNumberFormat::NATIONAL));
+    }
+
     /** @test */
     public function it_can_format_lenient_international_numbers_without_given_country()
     {