How to loop multidimensional array from mysql table with php - php

Question

After reading muiltiple stackoverflow questions I'm still confused on why I am not able to get this to work. I am attempting to take all of the rows of a mysql table and put them into a multidimensional array. I was hoping to just find a simple example but so far I'm not fully understanding.
The examples I've seen on google and stack is mostly about parsing or making it iterate on the page. I am attempting to have the mysql rows iterate into their arrays. The example code I started working with was similiar to this:
// This will hopefully get all of the categories
case 'get_all_categories' :
$query = '
SELECT `id`,`category_name`, `category_spam`
FROM `category`
';
if (!$go = #mysql_query($query)) {
$results = Array(
'head' => Array(
'status' => '0',
'error_number' => '604',
'error_message' => 'Select Failed. '.
'Probably wrong name supplied.'
),
'body' => Array ()
);
} else {
$fetch = mysql_fetch_row($go);
$return = Array($fetch[0],$fetch[1]);
$results = Array(
'body' => Array (
'id' => $return[0],
'category_name' => $return[1]
)
);
}
break;
This obviously provides me with the result of just ONE as that is what I'm asking it to do with fetch_row.
i.e.
//outputs
{"body":{"id":"1","category_name":"Star Wars"}}
I've attempted to use mysql_fetch_assoc and then do a foreach loop?
I"ve also tried doing a mysql_fetch_all($go) and then attempt to put the rows into it.
if (!$go = #mysql_query($query)) {
$results = Array(
'head' => Array(
'status' => '0',
'error_number' => '604',
'error_message' => 'Select Failed. '.
'Probably wrong name supplied.'
),
'body' => Array ()
);
} else {
while($myrow = mysql_fetch_row($go)){
Array(
'body' => Array(
'id' => $myrow[o],
'category_name' => $myrow[1],
'category_spam' => $myrow[2]
)
}
);
}
break;
I am attempting to make an api call where the body holds all of the categories and their id's (the point I believe is then for the categories to pull and show the lists...which I'm hoping is the right away to make an api(not a question just rambling)
So: how do I make the query take all of the mysql rows and loop them into arrays for the body array. (note: I'm new to API's if my terminology is wrong to what my overall goal is which is to get an api call to show my whole mysql array then please let me know).
EDIT Just adding more info from the comments
The output is JSON encoded (sorry I should have explained that)
switch ($_GET['format']) {
case 'xml' :
#header ("content-type: text/xml charset=utf-8");
$xml = new XmlWriter();
$xml->openMemory();
$xml->startDocument('1.0', 'UTF-8');
$xml->startElement('callback');
$xml->writeAttribute('xmlns:xsi','http://www.w3.org/2001/XMLSchema-instance');
$xml->writeAttribute('xsi:noNamespaceSchemaLocation','schema.xsd');
function write(XMLWriter $xml, $data){
foreach($data as $key => $value){
if(is_array($value)){
$xml->startElement($key);
write($xml, $value);
$xml->endElement();
continue;
}
$xml->writeElement($key, $value);
}
}
write($xml, $results);
$xml->endElement();
echo $xml->outputMemory(true);
break;
case 'json' :
#header ("content-type: text/json charset=utf-8");
echo json_encode($results);
break;
case 'php' :
header ("content-type: text/php charset=utf-8");
echo serialize($results);
break;
}

Answer 1

$res = mysql_query($query);
$results = array();
$i = 0;
while($row=mysql_fetch_array($res)) {
$results['body'][$i]['id'] = $row[o];
$results['body'][$i]['category_name'] = $row[1];
$results['body'][$i]['category_spam'] = $row[2];
$i++;
}
if(empty($results['body'])){
$results['head'] = Array(
'status' => '0',
'error_number' => '604',
'error_message' => 'Select Failed. '.
'Probably wrong name supplied.'
);
}
break;
Try the above code it will create $result array for your json response.
Rest everything is fine!