diff --git a/PHP Intro/php-getting-started-master/composer.lock b/PHP Intro/php-getting-started-master/composer.lock
index 3866474..5feaccf 100644
--- a/PHP Intro/php-getting-started-master/composer.lock	
+++ b/PHP Intro/php-getting-started-master/composer.lock	
@@ -1,11 +1,53 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "hash": "f93fe04ba82b12e6bbb2578ca1bb5193",
+    "content-hash": "8979033c34f1b0719ee312d55f77f6d1",
     "packages": [
+        {
+            "name": "ircmaxell/password-compat",
+            "version": "v1.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ircmaxell/password_compat.git",
+                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/ircmaxell/password_compat/zipball/5c5cde8822a69545767f7c7f3058cb15ff84614c",
+                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c",
+                "shasum": ""
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/password.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Anthony Ferrara",
+                    "email": "ircmaxell@php.net",
+                    "homepage": "http://blog.ircmaxell.com"
+                }
+            ],
+            "description": "A compatibility library for the proposed simplified password hashing algorithm: https://wiki.php.net/rfc/password_hash",
+            "homepage": "https://github.com/ircmaxell/password_compat",
+            "keywords": [
+                "hashing",
+                "password"
+            ],
+            "time": "2014-11-20T16:49:30+00:00"
+        },
         {
             "name": "monolog/monolog",
             "version": "1.16.0",
@@ -80,7 +122,7 @@
                 "logging",
                 "psr-3"
             ],
-            "time": "2015-08-09 17:44:44"
+            "time": "2015-08-09T17:44:44+00:00"
         },
         {
             "name": "pimple/pimple",
@@ -126,7 +168,7 @@
                 "container",
                 "dependency injection"
             ],
-            "time": "2013-11-22 08:30:29"
+            "time": "2013-11-22T08:30:29+00:00"
         },
         {
             "name": "psr/log",
@@ -164,7 +206,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2012-12-21 11:40:51"
+            "time": "2012-12-21T11:40:51+00:00"
         },
         {
             "name": "silex/silex",
@@ -246,19 +288,20 @@
             "keywords": [
                 "microframework"
             ],
-            "time": "2015-08-04 10:41:12"
+            "abandoned": "symfony/flex",
+            "time": "2015-08-04T10:41:12+00:00"
         },
         {
             "name": "symfony/debug",
             "version": "v2.7.3",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/Debug.git",
+                "url": "https://github.com/symfony/debug.git",
                 "reference": "9daa1bf9f7e615fa2fba30357e479a90141222e3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/Debug/zipball/9daa1bf9f7e615fa2fba30357e479a90141222e3",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/9daa1bf9f7e615fa2fba30357e479a90141222e3",
                 "reference": "9daa1bf9f7e615fa2fba30357e479a90141222e3",
                 "shasum": ""
             },
@@ -306,19 +349,19 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2015-07-09 16:07:40"
+            "time": "2015-07-09T16:07:40+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
             "version": "v2.7.3",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/EventDispatcher.git",
+                "url": "https://github.com/symfony/event-dispatcher.git",
                 "reference": "9310b5f9a87ec2ea75d20fec0b0017c77c66dac3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/EventDispatcher/zipball/9310b5f9a87ec2ea75d20fec0b0017c77c66dac3",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/9310b5f9a87ec2ea75d20fec0b0017c77c66dac3",
                 "reference": "9310b5f9a87ec2ea75d20fec0b0017c77c66dac3",
                 "shasum": ""
             },
@@ -364,41 +407,43 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2015-06-18 19:21:56"
+            "time": "2015-06-18T19:21:56+00:00"
         },
         {
             "name": "symfony/http-foundation",
-            "version": "v2.7.3",
+            "version": "v2.8.52",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/HttpFoundation.git",
-                "reference": "863af6898081b34c65d42100c370b9f3c51b70ca"
+                "url": "https://github.com/symfony/http-foundation.git",
+                "reference": "3929d9fe8148d17819ad0178c748b8d339420709"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/HttpFoundation/zipball/863af6898081b34c65d42100c370b9f3c51b70ca",
-                "reference": "863af6898081b34c65d42100c370b9f3c51b70ca",
+                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/3929d9fe8148d17819ad0178c748b8d339420709",
+                "reference": "3929d9fe8148d17819ad0178c748b8d339420709",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": ">=5.3.9",
+                "symfony/polyfill-mbstring": "~1.1",
+                "symfony/polyfill-php54": "~1.0",
+                "symfony/polyfill-php55": "~1.0"
             },
             "require-dev": {
-                "symfony/expression-language": "~2.4",
-                "symfony/phpunit-bridge": "~2.7"
+                "symfony/expression-language": "~2.4|~3.0.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.7-dev"
+                    "dev-master": "2.8-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
                     "Symfony\\Component\\HttpFoundation\\": ""
                 },
-                "classmap": [
-                    "Resources/stubs"
+                "exclude-from-classmap": [
+                    "/Tests/"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -417,19 +462,19 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "https://symfony.com",
-            "time": "2015-07-22 10:11:00"
+            "time": "2019-11-12T12:34:41+00:00"
         },
         {
             "name": "symfony/http-kernel",
             "version": "v2.7.3",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/HttpKernel.git",
+                "url": "https://github.com/symfony/http-kernel.git",
                 "reference": "405d3e7a59ff7a28ec469441326a0ac79065ea98"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/HttpKernel/zipball/405d3e7a59ff7a28ec469441326a0ac79065ea98",
+                "url": "https://api.github.com/repos/symfony/http-kernel/zipball/405d3e7a59ff7a28ec469441326a0ac79065ea98",
                 "reference": "405d3e7a59ff7a28ec469441326a0ac79065ea98",
                 "shasum": ""
             },
@@ -497,19 +542,192 @@
             ],
             "description": "Symfony HttpKernel Component",
             "homepage": "https://symfony.com",
-            "time": "2015-07-31 13:24:45"
+            "time": "2015-07-31T13:24:45+00:00"
+        },
+        {
+            "name": "symfony/polyfill-mbstring",
+            "version": "v1.13.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-mbstring.git",
+                "reference": "7b4aab9743c30be783b73de055d24a39cf4b954f"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/7b4aab9743c30be783b73de055d24a39cf4b954f",
+                "reference": "7b4aab9743c30be783b73de055d24a39cf4b954f",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-mbstring": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.13-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for the Mbstring extension",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "mbstring",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2019-11-27T14:18:11+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php54",
+            "version": "v1.13.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php54.git",
+                "reference": "dd1618047426412036e98d159940d58a81fc392c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php54/zipball/dd1618047426412036e98d159940d58a81fc392c",
+                "reference": "dd1618047426412036e98d159940d58a81fc392c",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.13-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php54\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 5.4+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2019-11-27T13:56:44+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php55",
+            "version": "v1.13.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php55.git",
+                "reference": "b0d838f225725e2951af1aafc784d2e5ea7b656e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php55/zipball/b0d838f225725e2951af1aafc784d2e5ea7b656e",
+                "reference": "b0d838f225725e2951af1aafc784d2e5ea7b656e",
+                "shasum": ""
+            },
+            "require": {
+                "ircmaxell/password-compat": "~1.0",
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.13-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php55\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 5.5+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2019-11-27T13:56:44+00:00"
         },
         {
             "name": "symfony/routing",
             "version": "v2.7.3",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/Routing.git",
+                "url": "https://github.com/symfony/routing.git",
                 "reference": "ea9134f277162b02e5f80ac058b75a77637b0d26"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/Routing/zipball/ea9134f277162b02e5f80ac058b75a77637b0d26",
+                "url": "https://api.github.com/repos/symfony/routing/zipball/ea9134f277162b02e5f80ac058b75a77637b0d26",
                 "reference": "ea9134f277162b02e5f80ac058b75a77637b0d26",
                 "shasum": ""
             },
@@ -568,19 +786,19 @@
                 "uri",
                 "url"
             ],
-            "time": "2015-07-09 16:07:40"
+            "time": "2015-07-09T16:07:40+00:00"
         },
         {
             "name": "symfony/twig-bridge",
             "version": "v2.7.3",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/TwigBridge.git",
+                "url": "https://github.com/symfony/twig-bridge.git",
                 "reference": "1d7c50fc20f89c5ca4d440ed54abf049dc882c6e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/TwigBridge/zipball/1d7c50fc20f89c5ca4d440ed54abf049dc882c6e",
+                "url": "https://api.github.com/repos/symfony/twig-bridge/zipball/1d7c50fc20f89c5ca4d440ed54abf049dc882c6e",
                 "reference": "1d7c50fc20f89c5ca4d440ed54abf049dc882c6e",
                 "shasum": ""
             },
@@ -646,7 +864,7 @@
             ],
             "description": "Symfony Twig Bridge",
             "homepage": "https://symfony.com",
-            "time": "2015-07-26 06:32:57"
+            "time": "2015-07-26T06:32:57+00:00"
         },
         {
             "name": "twig/twig",
@@ -703,7 +921,7 @@
             "keywords": [
                 "templating"
             ],
-            "time": "2015-07-31 13:45:26"
+            "time": "2015-07-31T13:45:26+00:00"
         }
     ],
     "packages-dev": [
@@ -749,7 +967,7 @@
                 "nginx",
                 "php"
             ],
-            "time": "2015-07-14 00:38:23"
+            "time": "2015-07-14T00:38:23+00:00"
         }
     ],
     "aliases": [],