wip

README.md

@@ -91,9 +91,10 @@ so it can be accessed with `$row->starts_at`.
 For custom class mapping the (normalized) column header has to match the class property name.
 
 ### Individually process row
+
 The `get` method will allways return an of rows from the csv file. Either as arrays or object.
 However, while being handy for smaller tasks, this is not memory efficient and can cause problems with large csv files.
-To solve this, you can process each row individually and still let the package solve the mapping, filtering and skipping etc. 
+To solve this, you can process each row individually and still let the package solve the mapping, filtering and skipping etc.
 This even makes handling large files with millions of records as simple as possible.
 
 ```php

src/Csv.php

@@ -61,21 +61,21 @@ public function delimiter(string $delimiter)
      * Map the CSV data to header keys.
      * The header row will be used as the keys for the data rows.
      *
-     * @param  int  $row The header row number
+     * @param  int|array  $headerRow The header row number or an array of header names
      * @return $this
      */
-    public function mapToHeaders($row = 1)
+    public function mapToHeaders(array|int $headerRow = 1)
     {
         $this->mapToHeaderRow = true;
 
-        if (is_array($row)) {
+        if (is_array($headerRow)) {
             $this->skipRows([]);
-            $this->headers = $row;
+            $this->headers = $headerRow;
 
             return $this;
         }
 
-        $this->setHeaderRow($row);
+        $this->setHeaderRow($headerRow);
 
         // Skip the header row when processing the CSV
         $this->skipRows([$this->headerRow]);