Exporting a mysql table in text file via nusoap web service

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PHP

MySQL

Hi,

I'm writing a method to export the contents of a mysql table in a text file via a web service nusoap.

the method in my web server:

 $host = 'localhost';
$user = 'root';
$pass = '';
$db = 'service';
$fichier = 'C:\Users\Desktop\test\fichier.txt';

//format du CSV
$csv_terminated = "\n";
$csv_separator = ";";
$csv_enclosed = '"';
$csv_escaped = "\\";

// requête MySQL


// connexion à la base de données

    $db1=new PDO('mysql:host=localhost;dbname=service','root','');
    $sql_query ="SELECT * FROM myusers";

// exécute la commande
$result = $db1->query($sql_query);
$fields_cnt =$result->columnCount();


$schema_insert = '';

for ($i = 0; $i < $fields_cnt; $i++)
{
    $col = $result->getColumnMeta($i);
    //$columns[] = $col['name'];
    $l = $csv_enclosed . str_replace($csv_enclosed, $csv_escaped . $csv_enclosed,
stripslashes($col['name'])) . $csv_enclosed;
    $schema_insert .= $l;
    $schema_insert .= $csv_separator;
} // fin for

$out = trim(substr($schema_insert, 0, -1));
$out .= $csv_terminated;

// Format des données
while ($row = $result->fetch())
{
    $schema_insert = '';
    for ($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;
}
    } // fin for

    $out .= $schema_insert;
    $out .= $csv_terminated;
} // fin while

calling the method:

 <?php
 error_reporting(E_ALL);
     // Pull in the NuSOAP code
    require_once('lib/nusoap.php');
    // Create the client instance
    $client = new nusoap_client('http://localhost/testajout/server.php');
    $res=$client->call('exportf');
    print_r($res);

?>

the file was not created and no errors are displayed but I test the code without putting it in a function, it works. I think there is a mistake on the calling method or the register method.

the register code:

<pre lang="PHP">$server->register('exportf',array('return'=>'xsd:string'));

But I am unsure on what the return type should be if not a string? I am thinking of using a string.

What I have tried:

the file was not created and no errors are displayed.