Add data dynamically to an Array

Question

I want to add data to an array dynamically. How can I do that? Example

$arr1 = [     'aaa',     'bbb',     'ccc', ]; // How can I now add another value?  $arr2 = [     'A' => 'aaa',     'B' => 'bbb',     'C' => 'ccc', ]; // How can I now add a D? 

Answer 1

There are quite a few ways to work with dynamic arrays in PHP. Initialise an array:

$array = array(); 

Add to an array:

$array[] = "item"; // for your $arr1  $array[$key] = "item"; // for your $arr2 array_push($array, "item", "another item"); 

Remove from an array:

$item = array_pop($array); $item = array_shift($array); unset($array[$key]); 

There are plenty more ways, these are just some examples.

Answer 2

$array[] = 'Hi'; 

pushes on top of the array.

$array['Hi'] = 'FooBar'; 

sets a specific index.