romove key and value without numaric from array in oho code example

Example 1: 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 2: php erase element from array

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