Fix breaks named parameters in OCI8Statement

lib/Doctrine/DBAL/Driver/OCI8/OCI8Statement.php

@@ -276,9 +276,15 @@ class OCI8Statement implements IteratorAggregate, Statement
     /**
      * {@inheritdoc}
      */
-    public function bindParam($column, &$variable, $type = ParameterType::STRING, $length = null)
+    public function bindParam($param, &$variable, $type = ParameterType::STRING, $length = null)
     {
-        $column = $this->_paramMap[$column];
+        if (is_int($param)) {
+            if (! isset($this->_paramMap[$param])) {
+                throw new OCI8Exception(sprintf('Could not find variable mapping with index %d, in the SQL statement', $param));
+            }
+
+            $param = $this->_paramMap[$param];
+        }
 
         if ($type === ParameterType::LARGE_OBJECT) {
             $lob = oci_new_descriptor($this->_dbh, OCI_D_LOB);
@@ -291,11 +297,11 @@ class OCI8Statement implements IteratorAggregate, Statement
             $variable =& $lob;
         }
 
-        $this->boundValues[$column] =& $variable;
+        $this->boundValues[$param] =& $variable;
 
         return oci_bind_by_name(
             $this->_sth,
-            $column,
+            $param,
             $variable,
             $length ?? -1,
             $this->convertParameterType($type)

tests/Doctrine/Tests/DBAL/Functional/Driver/OCI8/StatementTest.php

@@ -37,17 +37,41 @@ class StatementTest extends DbalFunctionalTestCase
         );
     }
 
+    /**
+     * Low-level approach to working with parameter binding
+     *
+     * @param mixed[] $params
+     * @param mixed[] $expected
+     *
+     * @dataProvider queryConversionProvider
+     */
+    public function testStatementBindParameters(string $query, array $params, array $expected) : void
+    {
+        $stmt = $this->connection->prepare($query);
+        $stmt->execute($params);
+
+        self::assertEquals(
+            $expected,
+            $stmt->fetch()
+        );
+    }
+
     /**
      * @return array<string, array<int, mixed>>
      */
     public static function queryConversionProvider() : iterable
     {
         return [
-            'simple' => [
+            'positional' => [
                 'SELECT ? COL1 FROM DUAL',
                 [1],
                 ['COL1' => 1],
             ],
+            'named' => [
+                'SELECT :COL COL1 FROM DUAL',
+                [':COL' => 1],
+                ['COL1' => 1],
+            ],
             'literal-with-placeholder' => [
                 "SELECT '?' COL1, ? COL2 FROM DUAL",
                 [2],