Home / Questions / 83755
Accepted
Kenny Barrera
Asked: 2020-07-05 13:37:37 +0800 CST 2020-07-05 13:37:37 +0800 CST

How do I add a value to an associative array in PHP?

  • 772

I have an associative array in my php script to which I have to add elements depending on some conditions. My setup starts like this:

$arreglo = ["id" => $_POST["id"]];

When a certain condition is met, I have to add more elements so that the array has the information, for example, what is in $_POST["nombre"], $_POST["apellido"], etc. The goal is to use that associative array in an object PDOto safely execute a query. How do I do it?

php

1 Answers

  1. Best Answer

    There are two possible ways to do it, quite simple.

    1. Directly access the arrangement

    As with a non-associative array, we can write:

    $arreglo["nombre"] = $_POST["nombre"];
$arreglo["apellido"] = $_POST["apellido"];

    Being the result (with hypothetical values)

    {["id"] => 4, ["nombre"] => "Juan", ["apellido"] => "Mata"}
    1. Use the array_mergePHP function

    Another associative array can be created with the information we have. The function is used array_mergeto "join" these two arrays, and the function returns a new array with the elements of both arrays.

    $arreglo1 = array("nombre" => $_POST["nombre"], "apellido" => $_POST["apellido"]);
$arreglo_resultante = array_merge($arreglo, $arreglo1);

    Being the content of $resulting_array

    {["id"] => 4, ["nombre"] => "Juan", ["apellido"] => "Mata"}

    The information and main idea of ​​this answer have been taken from this answer on the English site.

    • 1