php + mysql count consecutive data

Posted on 16th Feb 2014 07:03 pm by admin

I have a database of values and I want to work out how to display them if the values match a consecutive pattern.

For example, I might have the table "eggs" with the values "1", "2", "3", "4", "6", "7", "8", "9", "10". Now if I were to count these up I'd have 9 total values, this is good. What I want to do is ONLY count the values where they have another 2 consecutive values after them. So for example if the above pattern is what I'm using and I want to check for 2 consecutive values, the following would happen:

1 -> correct, it is followed by "2" and "3".
2 -> correct, it is followed by "3" and "4".
3 -> false, it is followed by "4" but no "5"
4 -> false, it is followed by "6", no"5".
6 -> correct, followed by "7" and "8".
7 -> correct, followed by "8" and "9".
8 -> correct, followed by "9" and "10".
9 -> false, followed by "10" but no "11".

and this would return the total of 7, because 7 of these values are followed by 2 consecutive numbers, therefore are correct.

So my question: How would I go about this? Would it be a matter of a single (albeit complex) mysql query or will I have to do some more advanced stuff after fetching the array? If it's the second I can do that myself, but I'd like to (hopefully) do it in a query!

So, any ideas?

Your Answer:

Login to answer

Other forums

Database/Table Collation
What is the Database, and table collations used for? i don't understand what there used for since co

have trouble in a if condition
The if below is working ok, it check when indexes, name, zipcode and state are empty.
Code: &

Logic question
im wondering what's the best method to do the above list:

it is for alliance @ MMORPG game

how to hide input fields on selection screen using variant attribute
Hello all,

I want to know how to hide input fields on selection screen using variant attr

Gridview Not updating in Update Panel
I have a gridview, three dropdown list boxes, and a button on my form. What is displayed in the gri

Time-based image rotation script
I'm trying to write a PHP script that rotates an image based on what time of day it is. I want the

PHP form help required
Hi all! Apologies in advance for having to message the forum for help. I know you must get a lot of

What is SAP Avatar ?
Hi All,

This G.Satish , my boss asked me to explore on SAP Avatar. I searced in internet

filesize problem
i use ubuntu 9.10 and i have mountet a folder from an windows

/mount/FOLDER
/mount/FOLDER/

selection tool on raster image
Hi!
I have to implement in my app a selection tool which lets users to select region of any shape