Is there an issue with PHP7.x and exporting to Excel?

I’m running XAMPP for Windows 7.1.7 (PHP Version 7.1.7)
I’m able to generate the excel using the online link(myGrid.toExcel(“”) HOWEVER using the (myGrid.toExcel(“codebase/grid-excel-php/generate.php”) generates a bunch of error_report xml files in the PDFErrorHandler function of generate.php. The actual error string ($errstr) is “A non-numeric value encountered”.
I turned on debig = true and attached is the output file.
Is there an issue with PHPExcel and PHP Version 7.x?? (3.21 KB)

I’m having the same problem. Perhaps you’ve managed to find a solution?

Nope! I had to downgrade my php installation. And no word from DHTMLX support… :frowning:

I’ve managed to fix this problem by downloading the last version of PHPExcel (compatible with php 7) from, and changing line 256 of gridExcelWrapper.php from $ch = “” to $ch = 0

hope this helps

private function getColName($index) { $index++; $letters = Array("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"); $name = ''; $ind = $index; $ready = false; $ch = 0; // <<<<<<<<<<<<<< was $ch = ""; $length = count($letters); ... ...

Same here… Alright for tiny xlsx records however bigger… in any case, fall flat while producing records with more lines…