Got rid of func_num_args in AbstractPlatform::getDummySelectSQL()

lib/Doctrine/DBAL/Platforms/AbstractPlatform.php

@@ -37,9 +37,7 @@ use function array_values;
 use function assert;
 use function count;
 use function explode;
-use function func_get_arg;
 use function func_get_args;
-use function func_num_args;
 use function implode;
 use function in_array;
 use function is_array;
@@ -3487,13 +3485,9 @@ abstract class AbstractPlatform
 
     /**
      * This is for test reasons, many vendors have special requirements for dummy statements.
-     *
-     * @return string
      */
-    public function getDummySelectSQL()
+    public function getDummySelectSQL(string $expression = '1') : string
     {
-        $expression = func_num_args() > 0 ? func_get_arg(0) : '1';
-
         return sprintf('SELECT %s', $expression);
     }
 

lib/Doctrine/DBAL/Platforms/DB2Platform.php

@@ -13,8 +13,6 @@ use function array_merge;
 use function count;
 use function current;
 use function explode;
-use function func_get_arg;
-use function func_num_args;
 use function implode;
 use function sprintf;
 use function strpos;
@@ -874,10 +872,8 @@ class DB2Platform extends AbstractPlatform
     /**
      * {@inheritDoc}
      */
-    public function getDummySelectSQL()
+    public function getDummySelectSQL(string $expression = '1') : string
     {
-        $expression = func_num_args() > 0 ? func_get_arg(0) : '1';
-
         return sprintf('SELECT %s FROM sysibm.sysdummy1', $expression);
     }
 

lib/Doctrine/DBAL/Platforms/OraclePlatform.php

@@ -15,8 +15,6 @@ use InvalidArgumentException;
 use function array_merge;
 use function count;
 use function explode;
-use function func_get_arg;
-use function func_num_args;
 use function implode;
 use function preg_match;
 use function sprintf;
@@ -1110,10 +1108,8 @@ SQL
     /**
      * {@inheritDoc}
      */
-    public function getDummySelectSQL()
+    public function getDummySelectSQL(string $expression = '1') : string
     {
-        $expression = func_num_args() > 0 ? func_get_arg(0) : '1';
-
         return sprintf('SELECT %s FROM DUAL', $expression);
     }