Update to require PHP 7.1+

.github/workflows/ci.yml

@@ -19,11 +19,6 @@ jobs:
           - 7.3
           - 7.2
           - 7.1
-          - 7.0
-          - 5.6
-          - 5.5
-          - 5.4
-          - 5.3
     steps:
       - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@v2
@@ -50,19 +45,3 @@ jobs:
           ini-file: development
       - run: composer install
       - run: vendor/bin/phpunit --coverage-text
-
-  PHPUnit-hhvm:
-    name: PHPUnit (HHVM)
-    runs-on: ubuntu-22.04
-    continue-on-error: true
-    steps:
-      - uses: actions/checkout@v4
-      - run: cp "$(which composer)" composer.phar && ./composer.phar self-update --2.2 # downgrade Composer for HHVM
-      - name: Run hhvm composer.phar install
-        uses: docker://hhvm/hhvm:3.30-lts-latest
-        with:
-          args: hhvm composer.phar install
-      - name: Run hhvm vendor/bin/phpunit
-        uses: docker://hhvm/hhvm:3.30-lts-latest
-        with:
-          args: hhvm vendor/bin/phpunit

README.md

@@ -424,8 +424,7 @@ composer require react/dns:^3@dev
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
 
 This project aims to run on any platform and thus does not require any PHP
-extensions and supports running on legacy PHP 5.3 through current PHP 8+ and
-HHVM.
+extensions and supports running on PHP 7.1 through current PHP 8+.
 It's *highly recommended to use the latest supported PHP version* for this project.
 
 ## Tests

composer.json

@@ -26,13 +26,13 @@
         }
     ],
     "require": {
-        "php": ">=5.3.0",
+        "php": ">=7.1",
         "react/cache": "^1.0 || ^0.6 || ^0.5",
         "react/event-loop": "^1.2",
         "react/promise": "^3.0 || ^2.7 || ^1.2.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6 || ^5.7 || ^4.8.36",
+        "phpunit/phpunit": "^9.6 || ^7.5",
         "react/async": "^4 || ^3 || ^2",
         "react/promise-timer": "^1.9"
     },

examples/01-one.php

@@ -13,7 +13,7 @@
 $factory = new Factory();
 $resolver = $factory->create($config);
 
-$name = isset($argv[1]) ? $argv[1] : 'www.google.com';
+$name = $argv[1] ?? 'www.google.com';
 
 $resolver->resolve($name)->then(function ($ip) use ($name) {
     echo 'IP for ' . $name . ': ' . $ip . PHP_EOL;

examples/02-concurrent.php

@@ -15,7 +15,7 @@
 
 $names = array_slice($argv, 1);
 if (!$names) {
-    $names = array('google.com', 'www.google.com', 'gmail.com');
+    $names = ['google.com', 'www.google.com', 'gmail.com'];
 }
 
 foreach ($names as $name) {

examples/03-cached.php

@@ -14,7 +14,7 @@
 $factory = new Factory();
 $resolver = $factory->createCached($config);
 
-$name = isset($argv[1]) ? $argv[1] : 'www.google.com';
+$name = $argv[1] ?? 'www.google.com';
 
 $resolver->resolve($name)->then(function ($ip) use ($name) {
     echo 'IP for ' . $name . ': ' . $ip . PHP_EOL;

examples/11-all-ips.php

@@ -14,7 +14,7 @@
 $factory = new Factory();
 $resolver = $factory->create($config);
 
-$name = isset($argv[1]) ? $argv[1] : 'www.google.com';
+$name = $argv[1] ?? 'www.google.com';
 
 $resolver->resolveAll($name, Message::TYPE_A)->then(function (array $ips) use ($name) {
     echo 'IPv4 addresses for ' . $name . ': ' . implode(', ', $ips) . PHP_EOL;

examples/12-all-types.php

@@ -16,8 +16,8 @@
 $factory = new Factory();
 $resolver = $factory->create($config);
 
-$name = isset($argv[1]) ? $argv[1] : 'google.com';
-$type = constant('React\Dns\Model\Message::TYPE_' . (isset($argv[2]) ? $argv[2] : 'TXT'));
+$name = $argv[1] ?? 'google.com';
+$type = constant('React\Dns\Model\Message::TYPE_' . ($argv[2] ?? 'TXT'));
 
 $resolver->resolveAll($name, $type)->then(function (array $values) {
     var_dump($values);

examples/13-reverse-dns.php

@@ -14,7 +14,7 @@
 $factory = new Factory();
 $resolver = $factory->create($config);
 
-$ip = isset($argv[1]) ? $argv[1] : '8.8.8.8';
+$ip = $argv[1] ?? '8.8.8.8';
 
 if (@inet_pton($ip) === false) {
     exit('Error: Given argument is not a valid IP' . PHP_EOL);

examples/91-query-a-and-aaaa.php

@@ -9,7 +9,7 @@
 
 $executor = new UdpTransportExecutor('8.8.8.8:53');
 
-$name = isset($argv[1]) ? $argv[1] : 'www.google.com';
+$name = $argv[1] ?? 'www.google.com';
 
 $ipv4Query = new Query($name, Message::TYPE_A, Message::CLASS_IN);
 $ipv6Query = new Query($name, Message::TYPE_AAAA, Message::CLASS_IN);

examples/92-query-any.php

@@ -13,7 +13,7 @@
 
 $executor = new TcpTransportExecutor('8.8.8.8:53');
 
-$name = isset($argv[1]) ? $argv[1] : 'google.com';
+$name = $argv[1] ?? 'google.com';
 
 $any = new Query($name, Message::TYPE_ANY, Message::CLASS_IN);
 

phpunit.xml.legacy

@@ -2,7 +2,7 @@
 
 <!-- PHPUnit configuration file with old format for legacy PHPUnit -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/4.8/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/7.5/phpunit.xsd"
          bootstrap="vendor/autoload.php"
          colors="true">
     <testsuites>

src/Config/Config.php

@@ -82,7 +82,7 @@ public static function loadResolvConfBlocking($path = null)
             throw new RuntimeException('Unable to load resolv.conf file "' . $path . '"');
         }
 
-        $matches = array();
+        $matches = [];
         preg_match_all('/^nameserver\s+(\S+)\s*$/m', $contents, $matches);
 
         $config = new self();
@@ -133,5 +133,5 @@ public static function loadWmicBlocking($command = null)
         return $config;
     }
 
-    public $nameservers = array();
+    public $nameservers = [];
 }

src/Config/HostsFile.php

@@ -98,7 +98,7 @@ public function getIpsForHost($name)
     {
         $name = strtolower($name);
 
-        $ips = array();
+        $ips = [];
         foreach (preg_split('/\r?\n/', $this->contents) as $line) {
             $parts = preg_split('/\s+/', $line);
             $ip = array_shift($parts);
@@ -128,10 +128,10 @@ public function getHostsForIp($ip)
         // check binary representation of IP to avoid string case and short notation
         $ip = @inet_pton($ip);
         if ($ip === false) {
-            return array();
+            return [];
         }
 
-        $names = array();
+        $names = [];
         foreach (preg_split('/\r?\n/', $this->contents) as $line) {
             $parts = preg_split('/\s+/', $line, -1, PREG_SPLIT_NO_EMPTY);
             $addr = (string) array_shift($parts);

src/Model/Message.php

@@ -126,23 +126,13 @@ public static function createResponseWithAnswersForQuery(Query $query, array $an
      * DNS response messages can not guess the message ID to avoid possible
      * cache poisoning attacks.
      *
-     * The `random_int()` function is only available on PHP 7+ or when
-     * https://github.com/paragonie/random_compat is installed. As such, using
-     * the latest supported PHP version is highly recommended. This currently
-     * falls back to a less secure random number generator on older PHP versions
-     * in the hope that this system is properly protected against outside
-     * attackers, for example by using one of the common local DNS proxy stubs.
-     *
      * @return int
      * @see self::getId()
      * @codeCoverageIgnore
      */
     private static function generateId()
     {
-        if (function_exists('random_int')) {
-            return random_int(0, 0xffff);
-        }
-        return mt_rand(0, 0xffff);
+        return random_int(0, 0xffff);
     }
 
     /**
@@ -200,31 +190,31 @@ private static function generateId()
      * An array of Query objects
      *
      * ```php
-     * $questions = array(
+     * $questions = [
      *     new Query(
      *         'reactphp.org',
      *         Message::TYPE_A,
      *         Message::CLASS_IN
      *     )
-     * );
+     * ];
      * ```
      *
      * @var Query[]
      */
-    public $questions = array();
+    public $questions = [];
 
     /**
      * @var Record[]
      */
-    public $answers = array();
+    public $answers = [];
 
     /**
      * @var Record[]
      */
-    public $authority = array();
+    public $authority = [];
 
     /**
      * @var Record[]
      */
-    public $additional = array();
+    public $additional = [];
 }