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Clear The Formula Calculation Cache In PHP Using PHPSpreadSheet PhpSpreadsheet memoises every formula result it works out, so changing a cell and reading the formula again hands back the previous answer with no error at all. This… August 13, 2026 · PhpSpreadsheet Control Cell Data Types With Value Binders In PHP Using PHPSpreadSheet Every string you write into a spreadsheet passes through a value binder, which decides whether '2026-08-12' becomes a real date or stays text. This article runs the same… August 13, 2026 · PhpSpreadsheet Import An Excel File Into Google Sheets Using Google Sheets API PHP Client PhpSpreadsheet opens the workbook and the Google client writes the rows, but the two libraries disagree about what a cell is. Reference codes like 007 arrive as 7,… August 12, 2026 · Google Sheets API PHP Client Delete Google Sheets Rows And Clear Ranges Using Google Sheets API PHP Client Clearing a range and deleting a row look like the same job, but one keeps the row, its shading and its formulas while the other removes them and… August 12, 2026 · Google Sheets API PHP Client Copy A Worksheet Into Another Excel File In PHP Using PHPSpreadSheet Merging workbooks looks like a job for addSheet(), but across two files that call succeeds silently and then dies on save with a TypeError about an integer. addExternalSheet()… August 11, 2026 · PhpSpreadsheet Append Google Sheets Rows Using Google Sheets API PHP Client Adding a row to the bottom of a sheet is the most common Google Sheets job a PHP script does, and values->append() finds the end of the table… August 11, 2026 · Google Sheets API PHP Client Read Google Sheets Cells Using Google Sheets API PHP Client The Google Sheets API does not hand back a neat rectangle: it trims trailing rows, returns short rows short, and answers an empty range with null rather than… August 11, 2026 · Google Sheets API PHP Client Authenticate With A Service Account Using Google Sheets API PHP Client A service account lets a PHP script reach Google Sheets with no browser, no consent screen and no token file, which is what makes it the right credential… August 10, 2026 · Google Sheets API PHP Client Guard Against XXE When Reading An Untrusted Excel File In PHP Using PHPSpreadSheet An .xlsx is a ZIP full of XML, so reading one from a stranger means parsing hostile XML on your own server. PhpSpreadsheet’s XmlScanner is already on by… August 10, 2026 · PhpSpreadsheet