List dates in months from database - php

Question

Hey, I need som help to list my added dates from database, and split it into their added month.
I have no clue on how to do it... Soe can someone please show me examples, or maybe some tutorials how to do?
Thx

Answer 1

Something along the lines of this, perhaps?
SELECT * FROM table GROUP BY MONTH(dateColumn)
SELECT * FROM table WHERE MONTH(dateColumn) = 9

Answer 2

A must-read reference for date & time handling functions in MySQL is:
http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html

Answer 3

Are you looking for the MySQL MONTH() Function?
Query: SELECT MONTH(NOW());
Output: 11

Answer 4

Not entirely sure what you mean but here goes...
The sample below creates a test collection (assumably your collection retrieved from the database) and groups them by Month and Year and then displays the result. It uses Linq and anonymous objects which you could easily replace with some POCO classes...
Sub Main()
Dim ls As New List(Of Object)
Dim lsGroup As New List(Of Object)
Dim ran As New Random(Now.Millisecond)
'' build a sample collection
For x As Integer = 1 To 100
ls.Add(New With {.ID = x, .DateAdded = Now.AddMinutes(-(ran.Next(1, 100000)))})
Next
'' now group them into years and months
For Each item In ls
Dim currentItem As Object = lsGroup.Where(Function(o) o.Year = item.DateAdded.Year And o.Month = item.DateAdded.Month).SingleOrDefault()
If currentItem Is Nothing Then
'' create
Dim var = New With {.Year = item.DateAdded.Year, .Month = item.DateAdded.Month, .ItemCollection = New List(Of Object)}
var.ItemCollection.Add(item)
lsGroup.Add(var)
Else
'' add
currentItem.ItemCollection.Add(item)
End If
Next
'' display the results
For Each group In lsGroup
Console.WriteLine(group.Year & " - " & MonthName(group.Month))
For Each item In group.ItemCollection
Console.WriteLine(" > " & item.ID & " - " & item.DateAdded.ToString())
Next
Console.WriteLine()
Next
Console.ReadLine()
End Sub

Answer 5

Here's what I do when I need the month that's in a timestamp or date item called "t".
TIMESTAMP(DATE_FORMAT(t,'%y-%m-01'))
This returns another timestamp that represents midnight on the first day of that month.
Works for weeks too.
TIMESTAMP(FROM_DAYS(TO_DAYS(t) -MOD(TO_DAYS(t) -1, 7)))
This obscure incantation returns a timestamp that represents midnight on the Sunday preceding the given timestamp.