Re: [PHP-DB] array field type
Sancar Saran [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Sunday 04 March 2007 23:04, Sancar Saran wrote: Hi, I want to know is there any db server around there for store php arrays natively. Regards Sancar Thanks for responses, it seems I have to give more info about situation. In my current project, we had tons of arrays. They are very deep and unpredictable nested arrays. Currently we are using serialize/unserialize and it seems it comes with own cpu cost. Xdebug shows some serializing cost blips. Sure it was not SO BIG deal (for now of course). My db expertise covers a bit mysql and mysql does not have any array type field (enum just so simple). Wrong! Take a look at the SET datatype http://dev.mysql.com/doc/refman/4.1/en/set.html. This allows you to have an array of values in a single field, and the user can select any number of them. -- Tony Marston http://www.tonymarston.net http://www.radicore.org I just want to know is there any way to keep array data type natively in a sql field. Regards. Sancar -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] array field type
Wrong! Take a look at the SET datatype http://dev.mysql.com/doc/refman/4.1/en/set.html. This allows you to have an array of values in a single field, and the user can select any number of them. Sort of, but not really: This is a really specialized keyword, and depends on binary mapping of enum-ish sets. As a results you have a maximum of 64 possible values, and only 1 dimension. Large or multdimensional arrays wouldn't work with this. -Micah -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] array field type
Sancar Saran wrote: Thanks for all those replies. It seems there was no easy solution (and or serializing was better solution) for us. Our arrays contains lots of things.. XML may not fit because content of array may broke xml structure. Before you give up, take a look at the XMLDBX PHP extension at http://www.mohawksoft.org It uses XML and works really well. -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] array field type
another option might be to store xml snippets that match the array.
if you are using large numbers of arrays, perhaps a revamping of the db
structure to map the arrays to sub-tables might be in order
bastien
From: Micah Stevens [EMAIL PROTECTED]
To: Sancar Saran [EMAIL PROTECTED]
CC: php-db@lists.php.net, php-general@lists.php.net
Subject: Re: [PHP-DB] array field type
Date: Sun, 04 Mar 2007 15:04:42 -0800
Not a single field, but there's several methods of storing trees of
information, which is what an array is. Here's one:
Nested Array storage table:
ArrayID (int, autonumber)
keyname (text)
parent (int)
data (bigtext or whatever would be appropriate for the data you're storing)
For an array like this:
array('one'=1, 'two'=array('three'=3, 'four'=4))
the table would store these rows:
1, 'one', 0, 1
2, 'two', 0, 2
3, 'three', 2, 3
4, 'four', 2, 4
You can use a recursive function to restore the array, unless you require
the granular functionality this type of process would give you such as
sorting and filtering and statistics gathering.
-Micah
However, I think in the long run, you'd be better off serializing the data.
-Micah
On 03/04/2007 02:15 PM, Sancar Saran wrote:
On Sunday 04 March 2007 23:04, Sancar Saran wrote:
Hi,
I want to know is there any db server around there for store php arrays
natively.
Regards
Sancar
Thanks for responses, it seems I have to give more info about situation.
In my current project, we had tons of arrays. They are very deep and
unpredictable nested arrays.
Currently we are using serialize/unserialize and it seems it comes with
own cpu cost. Xdebug shows some serializing cost blips. Sure it was not SO
BIG deal (for now of course).
My db expertise covers a bit mysql and mysql does not have any array type
field (enum just so simple).
I just want to know is there any way to keep array data type natively in a
sql field.
Regards.
Sancar
_
Win a trip for four to a concert anywhere in the world!
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Re: [PHP-DB] array field type
Thanks for all those replies. It seems there was no easy solution (and or serializing was better solution) for us. Our arrays contains lots of things.. XML may not fit because content of array may broke xml structure. Thanks for help. Regards Sancar. Hi, I want to know is there any db server around there for store php arrays natively. Regards Sancar Thanks for responses, it seems I have to give more info about situation. In my current project, we had tons of arrays. They are very deep and unpredictable nested arrays. Currently we are using serialize/unserialize and it seems it comes with own cpu cost. Xdebug shows some serializing cost blips. Sure it was not SO BIG deal (for now of course). My db expertise covers a bit mysql and mysql does not have any array type field (enum just so simple). I just want to know is there any way to keep array data type natively in a sql field. Regards. Sancar _ Win a trip for four to a concert anywhere in the world! http://www.mobilelivetour.ca/ -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP-DB] array field type
Hi, I want to know is there any db server around there for store php arrays natively. Regards Sancar -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] array field type
On Sunday 04 March 2007 23:04, Sancar Saran wrote: Hi, I want to know is there any db server around there for store php arrays natively. Regards Sancar Thanks for responses, it seems I have to give more info about situation. In my current project, we had tons of arrays. They are very deep and unpredictable nested arrays. Currently we are using serialize/unserialize and it seems it comes with own cpu cost. Xdebug shows some serializing cost blips. Sure it was not SO BIG deal (for now of course). My db expertise covers a bit mysql and mysql does not have any array type field (enum just so simple). I just want to know is there any way to keep array data type natively in a sql field. Regards. Sancar -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] array field type
Not a single field, but there's several methods of storing trees of
information, which is what an array is. Here's one:
Nested Array storage table:
ArrayID (int, autonumber)
keyname (text)
parent (int)
data (bigtext or whatever would be appropriate for the data you're storing)
For an array like this:
array('one'=1, 'two'=array('three'=3, 'four'=4))
the table would store these rows:
1, 'one', 0, 1
2, 'two', 0, 2
3, 'three', 2, 3
4, 'four', 2, 4
You can use a recursive function to restore the array, unless you
require the granular functionality this type of process would give you
such as sorting and filtering and statistics gathering.
-Micah
However, I think in the long run, you'd be better off serializing the data.
-Micah
On 03/04/2007 02:15 PM, Sancar Saran wrote:
On Sunday 04 March 2007 23:04, Sancar Saran wrote:
Hi,
I want to know is there any db server around there for store php arrays
natively.
Regards
Sancar
Thanks for responses, it seems I have to give more info about situation.
In my current project, we had tons of arrays. They are very deep and
unpredictable nested arrays.
Currently we are using serialize/unserialize and it seems it comes with own
cpu cost. Xdebug shows some serializing cost blips. Sure it was not SO BIG
deal (for now of course).
My db expertise covers a bit mysql and mysql does not have any array type
field (enum just so simple).
I just want to know is there any way to keep array data type natively in a sql
field.
Regards.
Sancar
