Trying to export specific SQL data with leading 0 using excel mime

Question

1 [This is the output] Trying to export SQL data as excel file by looping the array but failed to export the leading 0 of data.

I had tried to place single quote in the implode but still not working

header("Content-Disposition: attachment; filename=\"$filename\"");
header("Content-Type: application/vnd.ms-excel");
$user_query = mysqli_query($conn,$sql);
//echo $user_query;
// Write data to file
$flag = false;
while ($row = mysqli_fetch_assoc($user_query)) {
    if (!$flag) {
        // display field/column names as first row
        echo implode("\t", array_keys($row)) . "\r\n";
        $flag = true;
    }
        echo implode("\t", =array_values($row)) . "\r\n";

}

Expect to implode with "\\t'" with the single quote but still failed to export the leading 0

Answer 1

Change your implode like this so that each value is quoted in single quotes:

echo "'".implode("'\t'", array_values($row)) . "'\r\n";

---

UPDATE

Quoting only fields with a leading zero:

echo implode("\t", array_map('leadZero', $row))."\r\n";

function leadZero($element)
{
  return substr(trim($element),0,1) === "0" ? "'".$element."'" : $element;
}