MySQL export into CSV : number cells are not recognized as numbers

[iTx Technologie]

Hi,

I've got a PHP script that create a CSV file from a MySQL query. It outputs columns of data perfectly fine. The only problem is that Excel doesn't recognize the numbers as being "numbers" (that you can manipulate).

For example, if I have 2 cells with numbers 121.3 and 345.2 and I want to add them up, I will get an error. I've checked the formatting of my cells and made sure it's set to "Numbers", but still, the problem persists.

Here's my PHP script. Am I doing something wrong here ?

Thanks!

function WriteCsv($query) {
include('databaseManager.php');

    $csv_terminated = "\n";
    $csv_separator = ";";
    $csv_enclosed = '"';
    $csv_escaped = "\\";
    $sql_query = $query;
 
    // Gets the data from the database
    $result = DatabaseManager::ExecuteQuery($query);
    $fields_cnt = mysql_num_fields($result);
 
 
    $schema_insert = '';
 
    for ($i = 0; $i < $fields_cnt; $i++)
    {
        $l = $csv_enclosed . str_replace($csv_enclosed, $csv_escaped . $csv_enclosed,
            stripslashes(mysql_field_name($result, $i))) . $csv_enclosed;
        $schema_insert .= $l;
        $schema_insert .= $csv_separator;
    } // end for
 
    $out = trim(substr($schema_insert, 0, -1));
    $out .= $csv_terminated;
 
    // Format the data
    while ($row = mysql_fetch_array($result))
    {
        $schema_insert = '';
        for ($j = 0; $j < $fields_cnt; $j++)
        {
            if ($row[$j] == '0' || $row[$j] != '')
            {
 
                if ($csv_enclosed == '')
                {
                    $schema_insert .= $row[$j];
                } else
                {
                    $schema_insert .= $csv_enclosed . 
					str_replace($csv_enclosed, $csv_escaped . $csv_enclosed, $row[$j]) . $csv_enclosed;
                }
            } else
            {
                $schema_insert .= '';
            }
 
            if ($j < $fields_cnt - 1)
            {
                $schema_insert .= $csv_separator;
            }
        } // end for
 
        $out .= $schema_insert;
        $out .= $csv_terminated;
    } // end whilexport.csv
 
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Content-Length: " . strlen($out));
    // Output to browser with appropriate mime type, you choose ;)
    header("Content-type: text/csv");
    //header("Content-type: text/csv");
    //header("Content-type: application/csv");
    header("Content-Disposition: attachment; filename=rapports_ventes_".date('Y-m-d').".csv");
    echo $out;
    exit;
 
}