Question: how to convert xls file to csv file in php code?
Answer: function excel_csv_to_csv($in_file, $out_file) { if( !$ ...  $fw = fopen($out_file, "w"); while( ($data = fgetcsv($fr, 1000, ",")) !== FALSE ) { foreach( array_keys($data) as $key ) $data[$key] = '"' . ...  $line = implode(",", $data) . " ...  fwrite($fw, $line);