Objective
I want to use an existing Excel sheet, as a template to create an invoice.
I've read something about cfspreadsheet, but I'm not entirely sure how to use it.
Question A:
Is there a way to use a template file? Or do you know any alternatives?
Question B
Is it possible to use $_POST data with this library?
Example
$data = $_POST['example'];
$spreadsheet = new Spreadsheet();
$sheet = $spreadsheet->getActiveSheet();
$sheet->setCellValue('A1', '$data');
I am not 100% sure, but according to PhpSpreadsheet's doc, you can read a local file (your pre-made template) with :
$inputFileName = './sampleData/example1.xls';
/** Load $inputFileName to a Spreadsheet Object **/
$spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load($inputFileName);
Or in case you already know the file type (.xlsx or .xsl) :
$inputFileType = 'Xls'; // Xlsx - Xml - Ods - Slk - Gnumeric - Csv
$inputFileName = './sampleData/example1.xls';
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Load $inputFileName to a Spreadsheet Object **/
$spreadsheet = $reader->load($inputFileName);
You can also wrap all of that in a try catch if you want.
Then you just have to make changes the same way you would populate a Spreadsheet you created, populating cells with data you get from pretty much where you want with php, examples :
$foo = 'bar';
$_GET
/ $_POST
/ $_REQUEST