Question

I have 2 arrays

$arr1 = array(1,3);  
$arr2 = array(2,4);  

I want merge them to one array with structure:

$arr = array(1,2,3,4);  

Has php functions for that or exist good solution?
UPD: i don’t need sort values, i want put elements from first array to odd positions, elements from second to even positions

Answer 1

You would have to merge them first, then sort them:

$arr = array_merge($arr1, $arr2);
sort($arr);

There is no built-in function to do what you are describing, assuming they are both the same length:

$len = count($arr1);
for($x=0; $x < $len; $x++) {
    array_push($arr, $arr1[$x], $arr2[$x]);
}