fix compatibility with php 7.2

Author: liborm85

.github/workflows/static-analysis.yml

@@ -34,6 +34,11 @@ jobs:
         run: |
           sed -i ':a;$!N;1,12ba;P;$d;D' phpstan.neon
 
+      - name: Ignore error in PHP 7.2
+        if: ${{ matrix.php  == '7.2' }}
+        run: |
+          echo "    - '#Constant JSON_THROW_ON_ERROR not found#'" >> phpstan.neon
+
       - name: Run PHPStan
         run: |
           php vendor/bin/phpstan.phar --version

src/Body/RequestBody.php

@@ -31,7 +31,11 @@ public function toArray(): ?array
         }
 
         try {
-            $content = json_decode($content, true, 512, \JSON_BIGINT_AS_STRING | \JSON_THROW_ON_ERROR);
+            if (\PHP_VERSION_ID >= 70300) {
+                $content = json_decode($content, true, 512, \JSON_BIGINT_AS_STRING | \JSON_THROW_ON_ERROR);
+            } else {
+                $content = json_decode($content, true, 512, \JSON_BIGINT_AS_STRING);
+            }
         } catch (\JsonException $ex) {
             return null;
         }