将MySQL导出为CSV

Question

I have below script to export MySQL data to csv file.This script export everything inside the while loop but I want to put constant value in a 2nd column or just want to keep 2nd column empty and put MySQL data in column 1 and column 3.

// output the column headings
fputcsv($output, array('Column 1', 'Column 2', 'Column 3'));

// fetch the data
$rows = mysql_query('SELECT field1,field2 FROM table');

// loop over the rows, outputting them
while ($row = mysql_fetch_assoc($rows)) fputcsv($output, $row);

Answer 1

You already have field1 (ie-Column1) and field2(ie-Column3)
so just add Null at 2nd position like below

$insert = array( '' );
array_splice( $row, 1, 0, $insert );  

then use

fputcsv($output, $row);