Kyoto2.org

Tricks and tips for everyone

Interesting

How get data from Excel to array in PHP?

How get data from Excel to array in PHP? “php excel to array” Code Answer $reader = new \PhpOffice\PhpSpreadsheet\Reader\Xls(); $reader->setReadDataOnly(true); $spreadsheet = $reader->load($inputFileName); $cellValue = $spreadsheet->getActiveSheet()->getCellByColumnAndRow(2, 5)->getValue(); How to read data from XLSx file in PHP? EasyXLS on Linux, Mac,…

What is dB per decade?

What is dB per decade? It is usual to measure roll-off as a function of logarithmic frequency; consequently, the units of roll-off are either decibels per decade (dB/decade), where a decade is a tenfold increase in frequency, or decibels per…