diff --git a/.php_cs b/.php_cs
new file mode 100644
index 0000000..609d4c3
--- /dev/null
+++ b/.php_cs
@@ -0,0 +1,22 @@
+<?php
+
+if (!file_exists(__DIR__.'/src')) {
+    exit(0);
+}
+
+return (new PhpCsFixer\Config())
+    ->setRules([
+        '@PHP71Migration' => true,
+        '@PHPUnit75Migration:risky' => true,
+        '@Symfony' => true,
+        '@Symfony:risky' => true,
+        'protected_to_private' => false,
+    ])
+    ->setRiskyAllowed(true)
+    ->setFinder(
+        (new PhpCsFixer\Finder())
+            ->in(__DIR__.'/src')
+            ->in(__DIR__.'/tests')
+            ->append([__FILE__])
+    )
+;
diff --git a/tests/Format/PortNumbersTest.php b/tests/Format/PortNumbersTest.php
index 3071179..80bdb7e 100644
--- a/tests/Format/PortNumbersTest.php
+++ b/tests/Format/PortNumbersTest.php
@@ -90,6 +90,7 @@ public function testRemotePortInvalid($line)
         $this->expectException(\Kassner\LogParser\FormatException::class);
         $this->parser->parse($line);
     }
+
     /**
      * @dataProvider successProvider
      */
@@ -118,9 +119,9 @@ public function testCanonicalPortInvalid($line)
      */
     public function testPortFormatSuccess($portType)
     {
-        $format = '%t "%r" %{' . $portType . '}p';
+        $format = '%t "%r" %{'.$portType.'}p';
         $this->parser->setFormat($format);
-        $entry= $this->parser->parse('[10/Sep/2013:15:50:06 +0000] "GET /electronics/cameras/accessories/universal-camera-charger HTTP/1.1" 8080');
+        $entry = $this->parser->parse('[10/Sep/2013:15:50:06 +0000] "GET /electronics/cameras/accessories/universal-camera-charger HTTP/1.1" 8080');
 
         $propertyName = sprintf('%sPort', $portType);
         $this->assertObjectHasAttribute($propertyName, $entry);
@@ -132,7 +133,7 @@ public function testPortFormatSuccess($portType)
      */
     public function testPortFormatInvalid($portType)
     {
-        $format = '%t "%r" %{' . $portType . '}p';
+        $format = '%t "%r" %{'.$portType.'}p';
         $this->parser->setFormat($format);
         $this->expectException(\Kassner\LogParser\FormatException::class);
         $this->parser->parse('[10/Sep/2013:15:50:06 +0000] "GET /electronics/cameras/accessories/universal-camera-charger HTTP/1.1" 8080');
@@ -143,7 +144,7 @@ public function successProvider()
         return [
             ['443'],
             ['80'],
-            ['123423']
+            ['123423'],
         ];
     }
 
@@ -153,7 +154,7 @@ public function invalidProvider()
             [''],
             ['Nan'],
             ['+Inf'],
-            ['1.6e-19']
+            ['1.6e-19'],
         ];
     }