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Posted by ImOk on 06/20/06 16:17
Lets say I have an array of names, gender, age and salary that I read
from an Excel spreadsheet or CSV file.
How do I sort this by gender+salary+age and get a subset of anyone over
40 possibly ascending or descending?
E.g.
$arr[0]=array('M',20000,20,'JOHN');
$arr[1]=array('F',22000,24,'JANE');
$arr[2]=array('M',32000,40,'JOE');
I looked at using array_multisort but you have to jump through hoops it
seems. Maybe I am doing this wrong.
I am aware data will be lost of course when the program terminates. And
it can always be saved to a text file. Sometimes small databases are
much faster and easier being manipulated in memory especially if I dont
have to install a database engine.
Tim Martin wrote:
> ImOk wrote:
> > Anyone know of an extension that is an in memory database?
>
> I've never used it from PHP, but AIUI SQLite (www.sqlite.org) has a PHP
> extension, and can be used to create an in-memory database.
>
> > I dont want to create any files on disk (nor install a database engine)
> > but have an object/variable that points to a database and tables all in
> > memory.
>
> Why do you want to do this? What problem are you trying to solve? You
> are aware that all data may be lost at the end of the script execution?
>
> Tim
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