json formatting string to number - json

Question

My Json output generates;
[
{
"a1_id":"7847TK10",
"output2":"7847TK10",
"output4":"something",
"output5":"3stars.gif",
"output9": "269000",
...
etc. etc.
The google visualization api asks for a number format for the output9 element e.g.:
"output9": 269000 instead of "output9": "269000". How can I achieve this for this element?
My json.php generates the json output like this:
?>
{
"total": <?php echo $total ?>,
"success": true,
"rows": [
// Iterate over the rows
$nextRow= $result->nextRow();
$r = 1;
$info = array();
while ( $nextRow ) {
$nextColumn = $result->nextColumn();
// Has this column been printed already
if ( $unique )
{
$d = $result->getDataForField($unique);
if ( array_key_exists($d, $already) )
{
$nextRow= $result->nextRow();
continue;
}
$already[$d] = true;
}
echo '{';
// Iterate over the columns in each row
while ( $nextColumn )
{
// Get the variable
$variable = $result->getOutputVariable();
$name = $variable->getName(true);
$data = $result->getDataForField();
if ( !isset($info[$name]) ) {
$info[$name]['translate'] = $variable->shouldTranslate();
$info[$name]['type'] = $variable->getDataType();
$info[$name]['linkable'] = $variable->isLinkable();
}
// Translate the data if requested
if ( $info[$name]['translate'] ) {
$data = LQMTemplate::_($data);
}
$data = $variable->format($data, false);
$type = $info[$name]['type'];
if ( ($type == 'bool') or ($type == 'boolean') )
{
$data = $data ? '1' : '0';
echo "'$name':$data";
} elseif ( $encode ) {
// Can we use json_encode ?
// str_replace because some versions of PHP have a bug that will over escape forward slashes
echo "\"$name\":".str_replace('\\/', '/', json_encode($data));
} else {
$data = LQMUtility::jsonEscape($data, '"');
//echo "'$name':\"$data\"";
echo "\"$name\":\"$data\"";
}
// Conditionally print the next column
$nextColumn = $result->nextColumn();
if ( $nextColumn ) echo ",\n ";
}
// Conditionally print the next column
$nextRow = $result->nextRow();
echo $nextRow ? "},\n" : "}\n";
$r++;
}
unset($result);
echo ']}';
}
}

Answer 1

This depends on how you are generating your JSON.
For example, if you were using a Ruby backend, you could call:
"output9" => output9.to_i
There are various helper methods in different languages (e.g. Java and Javascript have parseInt() functions) to change a string into an integer.
Edit:
If your JSON is being generated by PHP, cast the string to an integer:
$json['output9'] = int($output9_value);
That should get rid of the quotation marks.