array-merge

I am looking to do this a better way without the need to hardcode the integers for $justPrices[$i] : $pricesResult = array_merge($justPrices[0], $justPrices[1], $justPrices[2], $justPrices[3]); $justPrices is a multidimensional array, containing 4 'bands' of prices within each array. The data for $justPrices being for example: Array ( [0] => Array ( [0] => 40.95 [1] => 39.95 [2] => 39.45 [3] => 38.95 ) [1] => Array ( [0] => 45.80 [1] => 41.80 [2] => 41.50 [3] => 41.40 ) [2] => Array ( [0] => 45.95 [1] => 42.95 [2] => 41.95 [3] => 41.45 ) [3] => Array ( [0] => 50.00 [1] => 50.00 [2] => 50.00 [3

How can make it so array_merge() overwrites two keys with different values but same key index from two arrays? for example, merging: [0] => 'whatever' with [0] => 'whatever', [1] => 'a', [2] => 'b' should produce [0] => 'whatever', [1] => 'a', [2] => 'b' Basically I want array_merge to bahave the same way it behaves if the arrays have string keys... Use the + operator. Compare array_merge to + operator: <?php $a1 = array(0=>"whatever",); $a2 = array(0=>"whatever",1=>"a",2=>"b"); print_r(array_merge($a1,$a2)); print_r($a1+$a2); ?> Output: Array ( [0] => whatever [1] => whatever [2] => a [3] =>

This question already has an answer here: What's the difference between array_merge and array + array? 9 answers When I use array_merge() with associative arrays I get what I want, but when I use them with numerical key arrays the keys get changed. With + the keys are preserved but it doesn't work with associative arrays. I don't understand how this works, can anybody explain it to me? Because both arrays are numerically-indexed, only the values in the first array will be used. The + operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the

If I have two arrays e.g let one = [1,3,5] let two = [2,4,6] I would like to merge/interleave the arrays in the following pattern [one[0], two[0], one[1], two[1] etc....] //prints [1,2,3,4,5,6] let comibned = mergeFunction(one, two) print(combined) What would be a good way to implement the combining function? func mergeFunction(one: [T], _ two: [T]) -> [T] { var mergedArray = [T]() //What goes here return mergedArray } If both arrays have the same length then this is a possible solution: let one = [1,3,5] let two = [2,4,6] let merged = zip(one, two).flatMap { [$0, $1] } print(merged) // [1, 2,

Let's say I have following arrays: Array ( [0] => Array ( [id] => 5 [name] => Education ) [1] => Array ( [id] => 4 [name] => Computers ) [3] => Array ( [id] => 7 [name] => Science [4] => Array ( [id] => 1 [name] => Sports ) ) And the second one: Array ( [0] => Array ( [id] => 1 [title] => Sport ) [1] => Array ( [id] => 7 [title] => Sci ) [3] => Array ( [id] => 4 [title] => Comp [4] => Array ( [id] => 5 [title] => Edu ) ) And desired output is: Array ( [0] => Array ( [id] => 5 [name] => Education [title] => Edu ) [1] => Array ( [id] => 4 [name] => Computers [title] => Comp ) [3] => Array ( [id]