Added basic .gitignore with sensible defaults

.gitignore

@@ -0,0 +1,118 @@
+# Custom added rules
+/bin/
+
+# Created by https://www.toptal.com/developers/gitignore/api/composer,phpunit,phpstorm+all
+# Edit at https://www.toptal.com/developers/gitignore?templates=composer,phpunit,phpstorm+all
+
+### Composer ###
+composer.phar
+/vendor/
+
+# Commit your application's lock file https://getcomposer.org/doc/01-basic-usage.md#commit-your-composer-lock-file-to-version-control
+# You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
+# composer.lock
+
+### PhpStorm+all ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### PhpStorm+all Patch ###
+# Ignore everything but code style settings and run configurations
+# that are supposed to be shared within teams.
+
+.idea/*
+
+!.idea/codeStyles
+!.idea/runConfigurations
+
+### PHPUnit ###
+# Covers PHPUnit
+# Reference: https://phpunit.de/
+
+# Generated files
+.phpunit.result.cache
+.phpunit.cache
+
+# PHPUnit
+/app/phpunit.xml
+/phpunit.xml
+
+# Build data
+/build/
+
+# End of https://www.toptal.com/developers/gitignore/api/composer,phpunit,phpstorm+all

README.md

@@ -1,23 +1,25 @@
-<img  src="https://www.pay.nl/uploads/1/brands/main_logo.png" width="100px" style="margin-bottom: -30px"/> <h1 style="position:relative;top:-6px;padding-left:10px;display: inline-block">PHP SDK</h1>
-
+<div style="display:flex;align-items:center;gap:20px;">
+    <img src="https://www.pay.nl/uploads/1/brands/main_logo.png"  alt="Pay NL SDK" width="100px"/>
+    <h1 style="margin: 0;padding: 0;">PHP SDK</h1>
+</div>
 
 Use this SDK to implement Pay. into your PHP integration.
-<br>
 
 #### Requirements
 
-> PHP 7.4 or PHP 8+  
+> PHP 8.3+  
 JSON extension installed  
 CURL extension installed
- 
-<br>
+
+#### Installation
 
 If requirements are met, go ahead with the [installation and set-up](https://github.com/paynl/php-sdk/wiki/Install) of the SDK!
 
-<br>
+#### Usage
 
 To get you started, you should check these [Samples](https://github.com/paynl/SDK-PHP/blob/main/samples).
 
-<br>
+
+#### Documentation
 
 For more detailed information, have a look at the [Wiki](https://github.com/paynl/php-sdk/wiki/) page.

composer.json

@@ -4,11 +4,11 @@
     "version": "0.1.0",
     "type": "library",
     "require": {
-        "php": "^7.4|^8.0",
+        "php": "^8.3",
         "ext-curl": "*",
         "ext-json": "*",
-        "psr/container": "^1.0",
-        "psr/http-message": "~1.0"        
+        "psr/container": "^2",
+        "psr/http-message": "^2"
     },
     "license": "MIT",
     "support": {
@@ -22,13 +22,13 @@
     ],
     "require-dev": {
         "ext-simplexml": "*",
-        "guzzlehttp/guzzle": "^6.3",
-        "phpmd/phpmd": "^2.7",
-        "phpstan/phpstan": "1.10.4",
-        "phpunit/phpunit": "^10",
+        "guzzlehttp/guzzle": "^7",
+        "phpmd/phpmd": "^2",
+        "phpstan/phpstan": "^2",
+        "phpunit/phpunit": "^11",
         "roave/security-advisories": "dev-master",
-        "squizlabs/php_codesniffer": "^3.4",
-        "symfony/var-dumper": "^4.3"
+        "squizlabs/php_codesniffer": "^3",
+        "symfony/var-dumper": "^7"
     },
     "autoload": {
         "psr-4": {
@@ -50,8 +50,6 @@
     "repositories": [
     ],
     "config": {
-        "bin-dir": "bin",
-        "secure-http": false,
         "optimize-autoloader": true,
         "sort-packages": true,
         "discard-changes": true
@@ -65,9 +63,9 @@
             "@phpmd",
             "@phpcs"
         ],
-        "phpstan": "bin/phpstan analyse",
-        "phpmd": "bin/phpmd src,samples text phpmd.xml",
-        "phpcs": "bin/phpcs"
+        "phpstan": "vendor/bin/phpstan analyse",
+        "phpmd": "vendor/bin/phpmd src,samples text phpmd.xml",
+        "phpcs": "vendor/bin/phpcs"
     },
     "archive": {
         "exclude": [