Re: [PHP] modify array data
I am wanting to rotate the array 45 degrees. Richard Lynch [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Fri, April 22, 2005 8:46 am, Jon Aston said: Is there a way to easily rotate array data? what I want to do is change from bob | bill | frank joe | jose | sam sally | jim | kim to | | | frank|| | | |bill | | sam| | |bob| | jose | | kim| | |joe| |jim | | | | | sally || | is there an easy way to do this? the data and arraysize will vary so I was looking for a way that I could have php do it without having to make script for different array sizes. http://php.net/array Look at array_pop and array_push and count and array_slice and array_splice and array_shift. I really don't understand your BEFORE/AFTER diagrams at all, since it pretty much looks random to me... In which case you want http://php.net/shuffle -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] modify array data
[snip] I am wanting to rotate the array 45 degrees. Richard Lynch [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Fri, April 22, 2005 8:46 am, Jon Aston said: Is there a way to easily rotate array data? what I want to do is change from bob | bill | frank joe | jose | sam sally | jim | kim to | | | frank|| | | |bill | | sam| | |bob| | jose | | kim| | |joe| |jim | | | | | sally || | is there an easy way to do this? [/snip] To rotate an array 45 degrees (to the left) would be a difficult thing. You could write a script that could do it and it would not matter your array size. Consider the following as a thought experiment... How many rows in the array? Is the number even or odd? How many columns in the array? Is the number even or odd? Does the number of rows match the number of columns? Take the number of rows and divide in half. If the number is not an integer round it up to get the mid row. If the number is an integer, add 1 to get a mid row. Take data in (0,0) and place in (0, mid row#) of new array Take data in (0,1) and place it in (1, mid row#-1) of new array And so on Can it be done? Yes, it can. Is it going to take a while to figure out.yes, it will. Good luck and let us know your results! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] modify array data
On Fri, April 22, 2005 8:46 am, Jon Aston said: Is there a way to easily rotate array data? what I want to do is change from bob | bill | frank joe | jose | sam sally | jim | kim to | | | frank|| | | |bill | | sam| | |bob| | jose | | kim| | |joe| |jim | | | | | sally || | is there an easy way to do this? the data and arraysize will vary so I was looking for a way that I could have php do it without having to make script for different array sizes. http://php.net/array Look at array_pop and array_push and count and array_slice and array_splice and array_shift. I really don't understand your BEFORE/AFTER diagrams at all, since it pretty much looks random to me... In which case you want http://php.net/shuffle -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] modify array data
Is there a way to easily rotate array data? what I want to do is change from bob | bill | frank joe | jose | sam sally | jim | kim to | | | frank|| | | |bill | | sam| | |bob| | jose | | kim| | |joe| |jim | | | | | sally || | is there an easy way to do this? the data and arraysize will vary so I was looking for a way that I could have php do it without having to make script for different array sizes. Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] modify array data
Well, it's just a matter of coming up with the formula for converting your data. I briefly tried to come up with one, but gave up after I realized there would not be a center data piece if you have a 4x4 array or any even number array for that matter. I would right down the array positions for before and after and try to find the pattern you are looking for. It should be some combination or rows, columns and array size (addition, subtraction, multiplicaiton, division, absolute values, etc.). If you can't find the pattern, you can't write a generic conversion function and neither can PHP or anybody. Your first row maps like this (row,col): 0,0 - 2,0 0,1 - 1,1 0,2 - 0,2 This formula would map the first row appropriately: row = ColCount - ColNum col = ColNum It obviously fails for your second row, but it's just an example. There is obviously a pattern which the mind can interpret fairly quickly. But trying to describe it in exact terms can be difficult. On Apr 22, 2005, at 11:46 AM, Jon Aston wrote: Is there a way to easily rotate array data? what I want to do is change from bob | bill | frank joe | jose | sam sally | jim | kim to | | | frank|| | | |bill | | sam| | |bob| | jose | | kim| | |joe| |jim | | | | | sally || | is there an easy way to do this? the data and arraysize will vary so I was looking for a way that I could have php do it without having to make script for different array sizes. Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Brent Baisley Systems Architect Landover Associates, Inc. Search Advisory Services for Advanced Technology Environments p: 212.759.6400/800.759.0577 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
