php session foreach storing data issue

Question

I have a form that submits data. Let's for example say it submits this data:

    Age     => 23
    Gender  => Male 
    Country => UK

Now I need to store this in a session array, that I have already made. BUT, this array already exists AND contains more fields than are given by the first form. For example, this is what the session array could look like:

    Age => Value
    Gender => Value
    Country => Value
    State => Value
    Language => Value

As you can see, only the first 3 are given with the first form. I would like a for each loop that detects which values are given (in this case: age, gender and country) and then place those values within the session array.

For example, the next form would give the information:

    State => Value
    Language => Value

I've been trying to wrap my head around this, but I just can't find a solution.. :/

check this stackoverflow.com/questions/2616540/…

Lord Zed
– Lord Zed

2014-02-28 19:12:40 +00:00
Commented Feb 28, 2014 at 19:12 — Lord Zed
– Lord Zed, Commented Feb 28, 2014 at 19:12

Barmar · Accepted Answer · 2014-02-28 19:08:15Z

0

Something like:

$valid_fields = array('Age', 'Gender', 'Country', 'State', 'Language');
foreach ($_POST as $key => $value) {
    if (in_array($key, $valid_fields)) {
        $_SESSION[$key] = $value;
    }
}

answered Feb 28, 2014 at 19:08

Barmar

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7 Comments

Jofairden Over a year ago

Hey, it doesn't seem to be working. I use that same code, with a different array name but here's what I get when I dump the $_POST array:

array(6) { ["mysqlname"]=> string(4) "root" ["mysqlpass"]=> string(4) "root" ["mysqlhost"]=> string(9) "localhost" ["mysqldatabase"]=> string(3) "pfs" ["mysqlport"]=> string(4) "3306" ["seed"]=> string(32) "837ec5754f503cfaaee0929fd48974e7" }

and this is what my $_SESSION looks like: The value of $_SESSION['mysqlname'] is '' The value of $_SESSION['mysqlpass'] is '' .... not full.. but you get the idea.. it stays empty

Barmar Over a year ago

That makes no sense. $_POST is always initialized with the form field values. I don't see how all the MySQL stuff could be getting into it, you must have some other code in your script that's doing this.

Jofairden Over a year ago

Oh wait, I just noticed I did stuff in the wrong order. Let me remake my code and then I'll come back to you with my findings.

Barmar Over a year ago

You're misunderstanding how var_dump displays values. That means it has the value "root", which is a string that's 4 characters long.

Barmar Over a year ago

Where is the Age, Gender, Country stuff that you said was in your form input?

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