Adding more elements to a session array

[684425]

I have created a session array on one page and stored some values as

$_SESSION['users'] = array(
  "id"      => $row['id'],
  "fname"   => $row['ufname'],
  "lname"   => $row['ulname']
);

and then on another page I have some more values for the same session array

  "boss"      => $row['bossid'],
  "tasks"     => $row['tasks'],
  "timeframe" => $row['tframe']

I want to add these values into session array both keys and values.

is there any way of doing this? Please help

[gw1500se]

Just use += (for PHP 5.4+).

$_SESSION['users']+=["boss"=>$row["bossid"]];

For 5.3-

$_SESSION['users']+=array("boss"=>$row["bossid"]);

 

[requinix]

Keep in mind that the + operator (and +=) for arrays may not work the way you think it does.

[Daniel290499]

You can use array_push() to add elements to an array.

$newArray = array();
$newArray['boss'] => $row['bossid'];
$newArray['tasks'] => $row['tasks'];
$newArray['timeframe'] => $row['tframe'];

array_push($_SESSION['users'] , $newArray);

Instead of creating $newArray, you can just insert $row into the array.

I did it this way because I don't know what else is in $row.

It's a personal choice, but I break up my code a lot.

I hope this helps

[requinix]

1 hour ago, Daniel290499 said:

You can use array_push() to add elements to an array.

That will add the $newArray array into the users array under a "0" key. As in $_SESSION[users] will be an array with an "id", "fname", "lname", and "0".

The answer is array_merge/replace or careful use of the +/+= operator.

[Daniel290499]

O yes.

Right you are.

Good catch.

Points for being close...?

[requinix]

1 minute ago, Daniel290499 said:

Points for being close...?

Part of the way there. array_push could be useful except for one rather important limitation: you can't choose the array keys it uses. And since the keys are important here, array_push won't cut it.

Also note that array_push is basically just a function version of the [] operator. As in array_push($array, $value) is the same as $array[] = $value. It does allow pushing multiple values at once, though, and sometimes that is useful.

[Daniel290499]

Indeed, indeed.

Well said.

[684425]

On 6/17/2020 at 2:05 PM, requinix said:

That will add the $newArray array into the users array under a "0" key. As in $_SESSION[users] will be an array with an "id", "fname", "lname", and "0".

The answer is array_merge/replace or careful use of the +/+= operator.

Sir if i choose array_merge then how can i add new items to the existing session array?

i mean do i need to consider the existing session array as temporary session array and also i have to store new session values to a new temporary session array and then merge those two temporary session arrays into one new session array?

Existing session array created on one page and the session is set

$_SESSION['users'] = array(
  "id"      => $row['id'],
  "fname"   => $row['ufname'],
  "lname"   => $row['ulname']
);

New session values on another page that i need to add to the existing session array

  "boss"      => $row['bossid'],
  "tasks"     => $row['tasks'],
  "timeframe" => $row['tframe']

I was thinking to choose array_push() for this but your reply confused me sir🙂