diff --git a/.gitignore b/.gitignore
index d1502b0..3171e94 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 vendor/
 composer.lock
+.idea/
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index a1629ba..f44309f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,20 @@
 language: php
+
 php:
   - 5.5
-  - 5.4
-  - 5.3
-before_install:
-  - wget http://getcomposer.org/composer.phar; chmod +x composer.phar; ./composer.phar install
+  - 5.6
+
+before_script:
+  - composer install
+#  - wget http://getcomposer.org/composer.phar
+#  - php composer.phar require satooshi/php-coveralls:dev-master --dev --no-progress --prefer-source
+
+script:
+  - mkdir -p build/logs
+  - phpunit --coverage-clover build/logs/clover.xml
+
+after_script:
+  - php vendor/bin/coveralls --exclude-no-stmt
+
+after_success:
+  - coveralls
diff --git a/README.md b/README.md
index 9aeb771..5cb66c7 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # Revisiting PhpQuery
 
-[![Build Status](https://travis-ci.org/wittiws/phpquery.png?branch=master)](https://travis-ci.org/wittiws/phpquery)
+[![Build Status](https://travis-ci.org/c-harris/phpquery.svg?branch=master)](https://travis-ci.org/c-harris/phpquery)
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/c-harris/phpquery/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/c-harris/phpquery/?branch=master)
+[![Coverage Status](https://coveralls.io/repos/github/c-harris/phpquery/badge.svg?branch=master)](https://coveralls.io/github/c-harris/phpquery?branch=master)
 
 ## Basic usage of this fork
 
diff --git a/composer.json b/composer.json
index 7395617..45396c8 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
         }
     ],
     "require":{
-        "php":">=5.3.3",
+        "php":">7.0",
         "sabberworm/php-css-parser":"5.1.*"
     },
     "autoload":{
diff --git a/src/PhpQueryObject.php b/src/PhpQueryObject.php
index f5e3f9f..b5b8fe7 100644
--- a/src/PhpQueryObject.php
+++ b/src/PhpQueryObject.php
@@ -1234,7 +1234,7 @@ protected function pseudoClasses($class)
                 if (!$param)
                     break;
                 // nth-child(n+b) to nth-child(1n+b)
-                if ($param{0} == 'n')
+                if ($param[0] == 'n')
                     $param = '1' . $param;
                 // :nth-child(index/even/odd/equation)
                 if ($param == 'even' || $param == 'odd')