feat: add encode util - base64 url

src/EncodeUtil.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Talmp\Phputils;
+
+class EncodeUtil
+{
+    # https://www.php.net/manual/en/function.base64-encode.php
+    # see in php comment section
+    public static function base64EncodeUrl(string $string): string
+    {
+        return str_replace(['+','/','='], ['-','_',''], base64_encode($string));
+    }
+
+    # https://www.php.net/manual/en/function.base64-encode.php
+    # see in php comment section
+    public static function base64DecodeUrl(string $string): string
+    {
+        return base64_decode(str_replace(['-','_'], ['+','/'], $string));
+    }
+}

tests/EncodeUtilTest.php

@@ -0,0 +1,22 @@
+<?php
+
+use PHPUnit\Framework\TestCase;
+use Talmp\Phputils\EncodeUtil;
+
+class EncodeUtilTest extends TestCase
+{
+    public function test_base64_encode_decode_url()
+    {
+        $string = bin2hex(openssl_random_pseudo_bytes(rand(100, 200)));
+
+        $encoded_str = EncodeUtil::base64EncodeUrl($string);
+
+        $this->assertFalse(str_contains($encoded_str, '+'));
+        $this->assertFalse(str_contains($encoded_str, '/'));
+        $this->assertFalse(str_contains($encoded_str, '='));
+
+        $decoded_str = EncodeUtil::base64DecodeUrl($encoded_str);
+
+        $this->assertEquals($string, $decoded_str);
+    }
+}