Fix binding parameters at the end of query

src/Pg.php

@@ -460,14 +460,20 @@ protected function replaceBind(string &$preparedQuery, Bind $bind): void
     }
 
     /**
+     * Replaces named placeholder with its value.
+     *
+     * Trailing (\W|$) keeps :id from being replaced inside :idAccount, but,
+     * unlike a mandatory (\W), matches a placeholder standing at the very end
+     * of the query as well.
+     *
      * @param $name
      * @param $value
      * @param $subject
      * @return string|string[]|null
      */
     private function _replaceBind($name, $value, $subject)
     {
-        return preg_replace('~' . $name . '(::\w+)?(\W)~', sprintf("%s$1$2", $value), $subject);
+        return preg_replace('~' . $name . '(::\w+)?(\W|$)~', sprintf("%s$1$2", $value), $subject);
     }
 
     /**

tests/Pg/PgBindTest.php

@@ -98,4 +98,43 @@ public function testBind()
         self::assertSame('1.00011122', $row['sixes']);
         self::assertSame('{foo,bar,false,NULL}', $row['array_of_text']);
     }
+
+    /**
+     * Placeholder standing at the very end of the query must be replaced too.
+     *
+     * @throws DBDException
+     * @throws Exception
+     */
+    public function testBindAtTheEndOfQuery()
+    {
+        $sth = $this->db->prepare("SELECT :int AS num WHERE 'some string' = :string");
+        $sth->bind(':int', 1, NumericPrimitives::Int16)
+            ->bind(':string', 'some string');
+
+        $sth->execute();
+        $row = $sth->fetchRow();
+
+        self::assertIsArray($row);
+        self::assertEquals(1, $row['num']);
+    }
+
+    /**
+     * Shorter bind name must not be replaced inside a longer one.
+     *
+     * @throws DBDException
+     * @throws Exception
+     */
+    public function testBindNameIsPrefixOfAnother()
+    {
+        $sth = $this->db->prepare("SELECT :id AS first, :idAccount AS second");
+        $sth->bind(':id', 'one')
+            ->bind(':idAccount', 'two');
+
+        $sth->execute();
+        $row = $sth->fetchRow();
+
+        self::assertIsArray($row);
+        self::assertSame('one', $row['first']);
+        self::assertSame('two', $row['second']);
+    }
 }