chore: adds php 7.4 compatibiliy checking

Author: JasonTheAdams

composer.json

@@ -34,6 +34,7 @@
         "guzzlehttp/psr7": "^1.0 || ^2.0",
         "php-http/curl-client": "^2.0",
         "php-http/mock-client": "^1.0",
+        "phpcompatibility/php-compatibility": "dev-develop",
         "phpstan/phpstan": "~2.1",
         "phpunit/phpunit": "^9.5 || ^10.0",
         "slevomat/coding-standard": "^8.20",

composer.lock

@@ -21,6 +21,15 @@
     <!-- Use PSR-12 standard -->
     <rule ref="PSR12"/>
 
+    <!-- Check PHP 7.4 compatibility -->
+    <rule ref="PHPCompatibility">
+        <!-- Exclude functions that are polyfilled in src/polyfills.php -->
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.array_is_listFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.str_containsFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.str_starts_withFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.str_ends_withFound"/>
+    </rule>
+
     <!-- Enforce namespace best practices -->
 	<rule ref="SlevomatCodingStandard.Namespaces.DisallowGroupUse" />
 	<rule ref="SlevomatCodingStandard.Namespaces.UseDoesNotStartWithBackslash" />