PHPExcel input has 2 sheets, output only has 1 of them saved - php

Question

I am having admins update a website by uploading .xlsx .xls or .csv files into an HTML form. The issue is that the second worksheet, NORTH, isn't being saved into the server with the first worksheet, SOUTH.
My Code:
<?php
require('./Classes/PHPExcel/IOFactory.php');
ini_set('max_execution_time', 800);
ini_set('memory_limit', 200M);
$inputFileType = 'Excel2007';
$inputFileName = $_FILES['uploaded']['tmp_name'];
class MyReadFilter implements PHPExcel_Reader_IReadFilter {
public function __construct($fromColumn, $toColumn) {
$this->columns = array();
$toColumn++;
while ($fromColumn !== $toColumn) {
$this->columns[] = $fromColumn++;
}
}
public function readCell($column, $row, $worksheetName = '') {
// Read columns from 'A' to 'AF'
if (in_array($column, $this->columns)) {
return true;
}
return false;
}
}
$filterSubset = new MyReadFilter('A', 'AF');
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objReader->setReadFilter($filterSubset);
$objReader->setLoadSheetsOnly( array("SOUTH", "NORTH") );
$objPHPExcelReader = $objReader->load($inputFileName);
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcelReader, 'CSV');
$objWriter->save('abc.csv');
$files = fopen('abc.csv', 'r');
while (($line = fgetcsv($files)) !== FALSE) {
$csv_array[] = array_combine(range(1, count($line)), array_values($line));
}
?>
What have I done wrong that won't allow my code to save both worksheets? TIA!

Answer 1

A CSV file can only hold a single worksheet, so you need to save each worksheet to a separate file
$objReader->setLoadSheetsOnly( array("SOUTH", "NORTH") );
$objPHPExcelReader = $objReader->load($inputFileName);
for ($ws = 0; $ws < $objPHPExcelReader->getSheetCount(); $ws++) {
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcelReader, 'CSV');
$objWriter->setSheetIndex($ws);
$objWriter->save('abc' .$ws. '.csv');
}