PHPExcel - CSV to array helper function

helper.php

<?php

/**
 * Helper function to convert CSV sheet to key value array
 * PHPExcel.php class required
 * @param  string  $filePath   path to CSV file
 * @param  string  $delimiter  delimiter
 * @param  string  $enclosure  enclosure 
 * @param  string  $lineEnding line ending
 * @param  integer $sheetIndex sheet index to read
 * @param  boolean $header     set the first row as array keys
 * @return array               CSV rows
 */
function csvToArray( $filePath, $delimiter = ',', $enclosure = '"', $lineEnding = "\r\n", $sheetIndex = 0, $header = true ) {
    //Create excel reader after determining the file type
    $inputFileName = $filePath;
    /**  Identify the type of $inputFileName  **/
    $inputFileType = 'CSV';
    /**  Create a new Reader of the type that has been identified  **/
    $objReader = PHPExcel_IOFactory::createReader($inputFileType);
    $objReader->setDelimiter($delimiter);
    $objReader->setEnclosure($enclosure);
    $objReader->setLineEnding($lineEnding);
    $objReader->setSheetIndex($sheetIndex);
    /** Set read type to read cell data onl **/
    $objReader->setReadDataOnly(true);
    /**  Load $inputFileName to a PHPExcel Object  **/
    $objPHPExcel = $objReader->load($inputFileName);
    //Get worksheet and built array with first row as header
    $objWorksheet = $objPHPExcel->getActiveSheet();

    //excel with first row header, use header as key
    if ( $header ) {
        $highestRow    = $objWorksheet->getHighestRow();
        $highestColumn = $objWorksheet->getHighestColumn();
        $headingsArray = $objWorksheet->rangeToArray( 'A1:' . $highestColumn . '1', null, true, true, true );
        $headingsArray = $headingsArray[1];

        $r = -1;
        $namedDataArray = array();
        for ( $row = 2; $row <= $highestRow; ++$row ) {
            $dataRow = $objWorksheet->rangeToArray( 'A' . $row . ':' . $highestColumn . $row, null, true, true, true );
            if ( ( isset( $dataRow[$row]['A'] ) ) && ( $dataRow[$row]['A'] > '' ) ) {
                ++$r;
                foreach ( $headingsArray as $columnKey => $columnHeading ) {
                    $namedDataArray[$r][$columnHeading] = $dataRow[$row][$columnKey];
                }
            }
        }
    } else {
        //excel sheet with no header
        $namedDataArray = $objWorksheet->toArray( null,true,true,true );
    }

    return $namedDataArray;
}