PHP

add element into array

var db_user = ["user_id", "user_name", "email"];
db_user.push("contact");

add element in array

// Add Element in array:
            int[] terms = new int[200];
            for (int run = 0; run < 400; run++)
            {
                terms[run] = value;
            }

adding an item to an array

addItems = items => {
  this.setState({
    emp: [
      ...this.state.emp,
      ...items
    ]
  })
}

add element to this array

$b=array("product"=>"$product","quantity"=>$quantity);
array_push($_SESSION['cart'],$b); // Items added to cart

adding an item to an array

addItem = item => {
  this.setState({
    emp: [
      ...this.state.emp,
      item 
    ]
  })
}