Here is an example array I want to split:
(1,2,3,4,5,0,6,7,0,8,9,10,11,12,0)
How do I split it in 3 arrays like this?
(1,2,3,4,5,0) (6,7,0) (8,9,10,11,12,0)
4 Answers
Here's the solution. (Author said he wants to split at '0' instead of duplicate values)
function split_array_by_duplicate_values($a, $duplicate = 0)
{
$c = array_intersect($a, array($duplicate));
$r = array();
$i = 0;
foreach($c as $k => $v) {
$l = ++$k - $i;
$r[] = array_slice($a, $i, $l);
$i = $k;
}
return $r;
}
$a = array(1,2,3,4,5,0,6,7,0,8,9,10,11,12,0);
print_r(split_array_by_duplicate_values($a));
returns
Array
(
[0] => Array
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 0
)
[1] => Array
(
[0] => 6
[1] => 7
[2] => 0
)
[2] => Array
(
[0] => 8
[1] => 9
[2] => 10
[3] => 11
[4] => 12
[5] => 0
)
)
8 Comments
Hahm
looks nice but when i copy paste, i have blank browser...anything wrong??
Rezigned
I forgot to put
return statement, my bad. Could you try again?Hahm
hmm what about if my array (1,1,1,1,1,0,1,1,0,1,1,1,1,1,0) how to split to be (1,1,1,1,1,0) (1,1,0) (1,1,1,1,1,0)
Rezigned
Do you want to always split at
0 regardless of other duplicate values e.g. 1?Rezigned
I've updated my answer to split by
0 instead. Also, pls accept the answer if it's correct. |
Try this:
$array = array(1, 2, 3, 0, 4, 5, 6);
$array_0 = array_splice($array, 0, 4);
$array_1 = array_splice($array, 4);
Comments
I think what you're looking for is array_splice.
$array=array(1,2,3,0,4,5,6);
$newarray=array_splice($array,4);
print_r($array); //Array ( [0] => 1 [1] => 2 [2] => 3 [3]=>0);
print_r($newarray); //Array( [0]=>4 [1]=>5 [2]=>6)
If you want to split an array into two arrays in one multidimensional array, you could do
$array=array(1,2,3,0,4,5,6);
$newarray=array_chunk($array,4); //returns [[1,2,3,0],[4,5,6]]
Comments
You should use array split to split the array as you would like
<?php
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 2); // returns "c", "d", and "e"
$output = array_slice($input, -2, 1); // returns "d"
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
// note the differences in the array keys
print_r(array_slice($input, 2, -1));
print_r(array_slice($input, 2, -1, true));
?>
(1,2,3,4,0,1,2,3,4)heres1,2,3,4are duplicate too. or this won't happen?