Output as array - php

Question

$result = mysql_query(" SELECT p.page_url AS url,
COUNT(*) AS occurrences
FROM page p, word w, occurrence o
WHERE p.page_id = o.page_id AND
w.word_id = o.word_id AND
w.word_word = \"$keyword\"
GROUP BY p.page_id
ORDER BY occurrences DESC
" );
$output = "<loginsuccess>";
for( $i = 1; $row = mysql_fetch_array($result); $i++ ) {
$output .="<keyword>".$_POST['keyword']."</keyword><name>".$row['url']."</name><occur>".$row['occurrences']."</occur><queryTime>".(substr($end_time-$start_time,0,5))."</queryTime>";
}
$output .= "</loginsuccess>";
print ($output);
I am gettign the output in XML, instead i want it in array... how to achieve this.
The code below is not working...
$ret = array();
for( $i = 1; $row = mysql_fetch_array($result); $i++ ) {
$tmp['url'] = $row['url'];
$tmp['occurrences'] = $row['occurrences'];
$ret[] = $tmp;
}
return $ret;

Answer 1

You're already getting the results in an array when you call mysql_fetch_array($result). That's what mysql_fetch_array does.
Unless you want some other kind of array format? If so, you'll have to be more specific.

Answer 2

Use print_r():
echo "<pre>";
print_r($row);
echo "</pre>";
Note: If you won't wrap it in <pre> tags, the output will be difficult to read as it will appear all on one line

Answer 3

A for-loop is only to be used in an incremental fashion, you attempted to use it in place of a while loop. This isn't "do 1,000 times" but "do while we have a row to use".
Try this:
while($row = mysql_fetch_array($result)) {
$tmp['url'] = $row['url'];
$tmp['occurrences'] = $row['occurrences'];
$ret[] = $tmp;
}
return $ret;

Answer 4

Try it like so, notice the here-doc style of writing the SQL statement. I find it very helpful. Also I would suggest rewriting the SQL to use JOINs instead of crowding the WHERE clause with join criteria.
$sql = <<<EOSQL
SELECT p.page_url AS url, COUNT(*) AS occurrences
FROM page p, word w, occurrence o
WHERE p.page_id = o.page_id AND
w.word_id = o.word_id AND
w.word_word = "$keyword"
GROUP BY p.page_id
ORDER BY occurrences DESC;
EOSQL;
$result = mysql_query($sql) or die('failed to execute the query');
while ($row = mysql_fetch_array($result)) {
print_r ($row);
}
Hope this is roughly what you're after

Answer 5

You need to initialize your $tmp array before using it.