NFC-162 Fix PHP example JSON responses and restore PHP 8.1–8.3 compabibility

example/composer.json

@@ -9,7 +9,7 @@
         }
     ],
     "require": {
-        "php": ">=8.5",
+        "php": ">=8.1",
         "web-eid/web-eid-authtoken-validation-php": "1.3.*",
         "altorouter/altorouter": "^2.0.3",
         "psr/log": "^3.0"

example/public/index.php

@@ -24,12 +24,14 @@
 
 header('Content-type: text/html; charset=UTF-8');
 
+ini_set('display_errors', '0');
+
 session_start();
 
 // Uncomment following line to define the custom log location (by default the server log is used)
 //define("LOGFILE", dirname(__FILE__) . "/../log/web-eid-authtoken-validation-php.log");
 
-require __DIR__ . '/../vendor/autoload.php';
+require_once __DIR__ . '/../vendor/autoload.php';
 
 $configArr = require_once __DIR__ . '/../src/app.conf.php';
 $config = Config::fromArray($configArr)->overrideFromEnv();

example/src/Auth.php

@@ -73,7 +73,7 @@ public function validate()
 
         try {
             /* Get and remove nonce from store */
-            $challengeNonce = new ChallengeNonceStore()->getAndRemove();
+            $challengeNonce = (new ChallengeNonceStore())->getAndRemove();
 
             $authResult = $this->ctx->authenticate(
                 $authToken,

example/src/AuthContext.php

@@ -136,14 +136,14 @@ public function trustedIntermediateCACertificates(): array
 
     public function nonceGenerator(): ChallengeNonceGenerator
     {
-        return new ChallengeNonceGeneratorBuilder()->withNonceTtl(300)->build();
+        return (new ChallengeNonceGeneratorBuilder())->withNonceTtl(300)->build();
     }
 
     public function tokenValidator(): AuthTokenValidator
     {
         $logger = new Logger();
 
-        return new AuthTokenValidatorBuilder($logger)
+        return (new AuthTokenValidatorBuilder($logger))
             ->withSiteOrigin(new Uri($this->config->get("origin_url")))
             ->withTrustedCertificateAuthorities(
                 ...$this->trustedIntermediateCACertificates(),