Fix memory limit in PhpSubprocess unit test

Author: ausi

Tests/PhpSubprocessTest.php

@@ -47,7 +47,7 @@ public static function subprocessProvider(): \Generator
         yield 'Process does ignore dynamic memory_limit' => [
             'Process',
             self::getRandomMemoryLimit(),
-            self::getCurrentMemoryLimit(),
+            self::getDefaultMemoryLimit(),
         ];
 
         yield 'PhpSubprocess does not ignore dynamic memory_limit' => [
@@ -57,16 +57,16 @@ public static function subprocessProvider(): \Generator
         ];
     }
 
-    private static function getCurrentMemoryLimit(): string
+    private static function getDefaultMemoryLimit(): string
     {
-        return trim(\ini_get('memory_limit'));
+        return trim(ini_get_all()['memory_limit']['global_value']);
     }
 
     private static function getRandomMemoryLimit(): string
     {
         $memoryLimit = 123; // Take something that's really unlikely to be configured on a user system.
 
-        while (($formatted = $memoryLimit.'M') === self::getCurrentMemoryLimit()) {
+        while (($formatted = $memoryLimit.'M') === self::getDefaultMemoryLimit()) {
             ++$memoryLimit;
         }