how to remove start third index from array in auto php code example

Example 1: php array remove after index

$myArrayInit = [1 => 'red', 30 => 'orange', 25 => 'velvet', 45 => 'pink']; //<-- Your actual array
 $offsetKey = 25; //<---  offset seng mbok butohke

    //Lets do the code....
    $n = array_keys($myArrayInit); //<---- Grab all the keys of your actual array and put in another array
    $count = array_search($offsetKey, $n); //<--- Returns the position of the offset from this array using search
    $new_arr = array_slice($myArrayInit, 0, $count + 1, true);//<--- Slice it with the 0 index as start and position+1 as the length parameter.
    print_r($new_arr);

// hasile iki > 
/*
Array
(
    [1] => red
    [30] => orange
    [25] => velvet
)
*/

Example 2: php delete element from array

//Delete array items with unset(no re-index) or array_splice(re-index)
$colors = array("red","blue","green");                             
unset($colors[1]);//remove second element, do not re-index array

$colors = array("red","blue","green");
array_splice($colors, 1, 1); //remove second element, re-index array

Example 3: php erase element from array

foreach ($items as $key =>$item){
  if(condition){
    unset($item[$key]);
  }
}