How to parse results from MySQL Table with PHP using row data?
Typically when I make calls into a mysql db, I reference a column for values I need. In this particular instance however, I need to retrieve a set of rows and parse with PHP accordingly. The example is this:
Table format
ID | Level
-----------------
1 | 1
2 | 2
3 | 2
4 | 3
5 | 4
6 | 4
I am ultimately trying to retrieve all possible levels and count the number of results by those levels. A simple GROUP BY, COUNT() will do the trick:
'Select Level, Count(*) as counter FROM table GROUP BY Levels ORDER BY Levels ASC'
开发者_开发技巧Which will return:
table_new
Level | Count
--------------
1 | 1
2 | 2
3 | 1
4 | 2
The problem I face though is when retrieving these results with PHP, I am not quite sure how to set a variable, say 'level1' and set it to the value returned in the count column.
I assume the logic would follow:
while ($row = $stmt->fetch()) {
$count_level = $row['counter']
}
(but then I would need to create counts for each level type. Any suggestions?
$level = array();
while ($row = $stmt->fetch()) {
$level[$row['level']] = $row['counter']
}
then you have $level
array and $level[1]
, $level[2]
etc variables
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