[PHP] split array in 2 halfs
Good evening I was wondering how can I split, array that has 60 elements in it, into 2 arrays with 30 elements each? Thank You very much and have a good night :-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] split array in 2 halfs
Based on what criteria? if you just want to split the array at element 30, you could use array_splice to get the necessary data... - Original Message - From: Daniel Harik [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, November 01, 2001 2:16 AM Subject: [PHP] split array in 2 halfs Good evening I was wondering how can I split, array that has 60 elements in it, into 2 arrays with 30 elements each? Thank You very much and have a good night :-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re[2]: [PHP] split array in 2 halfs
Want to split it in half 1 Big array: 1 2 3 4 5 6 Want to make 1 Small array: 1 2 3 2 Small array: 4 5 6 Thank You -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: Re[2]: [PHP] split array in 2 halfs
take a look at the manual http://www.php.net/manual/en/function.array-slice.php it will show you the right way to do it jim - Original Message - From: Daniel Harik [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, October 31, 2001 11:25 PM Subject: Re[2]: [PHP] split array in 2 halfs Want to split it in half 1 Big array: 1 2 3 4 5 6 Want to make 1 Small array: 1 2 3 2 Small array: 4 5 6 Thank You -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re[3]: [PHP] split array in 2 halfs
$smallarray1=array_slice($bigarray,0,3); $smallarray2=array_slice($bigarray,3,3); On Wed, 31 Oct 2001 23:25:55 -0800, Daniel Harik wrote: Want to split it in half 1 Big array: 1 2 3 4 5 6 Want to make 1 Small array: 1 2 3 2 Small array: 4 5 6 Thank You -- Mark, [EMAIL PROTECTED] on 10/31/2001 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: Re[2]: [PHP] split array in 2 halfs
You could also grab the midpoint of the array:
$count = round(count($array), 0);
then populate your new arrays by using a foreach loop:
$x = 0;
foreach($array as $key = $value) {
if ($x =$count) {
$array1[] = $value;
} else {
$array2[] = $value;
}
$x++;
}
Daniel Harik [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Want to split it in half
1 Big array:
1
2
3
4
5
6
Want to make
1 Small array:
1
2
3
2 Small array:
4
5
6
Thank You
--
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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: Re[2]: [PHP] split array in 2 halfs
You may find this helpful:
$arr = array('a','b','c','d','e');
$second_half = array_splice($arr,floor(sizeof($arr)/2));
print_r($arr); // Array ( [0] = a [1] = b )
print_r($second_half); // Array ( [0] = c [1] = d [2] = e )
In the above, $second_half will be one larger then $arr if the number
of elements is odd, otherwise they'll be equally sized halves. Using
ceil() as opposed to floor() will make $second_half the smaller of the
two.
Regards,
Philip Olson
On Wed, 31 Oct 2001, Daniel Harik wrote:
Want to split it in half
1 Big array:
1
2
3
4
5
6
Want to make
1 Small array:
1
2
3
2 Small array:
4
5
6
Thank You
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
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Re: Re[2]: [PHP] split array in 2 halfs
Correction:
$count = count($array);
$count = $count/2;
$count = round($count,0);
Liz Fulghum [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
You could also grab the midpoint of the array:
$count = round(count($array), 0);
then populate your new arrays by using a foreach loop:
$x = 0;
foreach($array as $key = $value) {
if ($x =$count) {
$array1[] = $value;
} else {
$array2[] = $value;
}
$x++;
}
Daniel Harik [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Want to split it in half
1 Big array:
1
2
3
4
5
6
Want to make
1 Small array:
1
2
3
2 Small array:
4
5
6
Thank You
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: Re[3]: [PHP] split array in 2 halfs
More generally, this should work: $smallarray1=array_slice($bigarray, 0, sizeof($bigarray) / 2); $smallarray2=array_slice($bigarray, sizeof($bigarray) / 2); I haven't tested it though... -Original Message- From: Mark [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 31, 2001 4:32 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re[3]: [PHP] split array in 2 halfs $smallarray1=array_slice($bigarray,0,3); $smallarray2=array_slice($bigarray,3,3); On Wed, 31 Oct 2001 23:25:55 -0800, Daniel Harik wrote: Want to split it in half 1 Big array: 1 2 3 4 5 6 Want to make 1 Small array: 1 2 3 2 Small array: 4 5 6 Thank You -- Mark, [EMAIL PROTECTED] on 10/31/2001 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
