Menu
I have done a lot of looking around on the overflow, and on google, but none of the results works for my specific case.
I have a placeholder array called $holder, values as follows:
Array ( [0] => Array ( [id] => 1 [pid] => 121 [uuid] => 1 ) [1] => Array ( [id] => 2 [pid] => 13 [uuid] => 1 ) [2] => Array ( [id] => 5 [pid] => 121 [uuid] => 1 ) ) I am trying to pull out distinct/unique values from this multidimensional array. The end result I would like is either a variable containing (13,121), or (preferrably) an array as follows: Array( [0] => 13 [1] => 121 )
Again I've tried serializing and such, but don't quite understand how that works when operating with a single key in each array.
I tried to be as clear as possible. I hope it makes sense...
396
You can find the distinct values in an array using the Distinct function. The Distinct function takes the array as an input parameter and returns another array that consists only of the unique, or non-duplicate, elements. The following example shows how to find the distinct values in an array.
You can use the PHP array_unique() function and PHP array_merge() function together to merge two arrays into one array without duplicate values in PHP.
You can create a multidimensional array by creating a 2-D matrix first, and then extending it. For example, first define a 3-by-3 matrix as the first page in a 3-D array. Now add a second page. To do this, assign another 3-by-3 matrix to the index value 2 in the third dimension.
Seems pretty simple: extract all pid values into their own array, run it through array_unique:
$uniquePids = array_unique(array_map(function ($i) { return $i['pid']; }, $holder)); The same thing in longhand:
$pids = array(); foreach ($holder as $h) { $pids[] = $h['pid']; } $uniquePids = array_unique($pids); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
