I have an array that looks like this
Array
(
[0] => 1,2,4
[1] => 1
[2] => 1,2
[24] => 2
[44] => 1,2,3,4,5
[86] => 1,2,5
[139] => 4
[156] => 1,4
[170] => 1,2,4,5
[201] => 1,3
[208] => 1,2,3
[237] => 1,5
)
Now i want to merge all values into one single array without the duplicates so the desired output should look like this
Array(
[0]=>1,2,3,4,5
)
Any help would be appreciated. Thanks
Short version:
$result = implode(',', array_unique(explode(',', implode(',', $array))));
Explanation:
First you need to join all array elements to one string using implode() and "," as divider.
This will have the effect that
Array
(
[0] => 1,2,4
[1] => 1
[2] => 1,2
)
will be joined to a string that looks like
1,2,4,1,1,2
Then you explode the string by using explode() and "," which will split up all elements into a single array value
Array
(
[0] => 1
[1] => 2
[2] => 4
[3] => 1
[4] => 1
[5] => 2
)
Then you make the values of the array unique by using array_unique() which will give you an array like this:
Array
(
[0] => 1
[1] => 2
[2] => 4
)
At the end you implode them again by using implode() and "," and here is your result as a string:
1,2,4
Something like this should do it:
$output = [];
array_map(function ($numbers) use (&$output) {
$output = array_merge($output, explode(",", $numbers));
}, $input);
$output = array_unique($output);