Array value store in session as a string.

Question

I have an array and it looks like this.

[cuisine] => Array
        (
            [0] => 36
            [1] => 12
            [2] => 2
            [3] => 4
            [4] => 41
            [5] => 22
        )

So now I need to store these values in SESSION. Something like this

$_SESSION['cuisine'] = 36, 12, 2, 4, 41, 22

This is how I tried it, But it doesn't work for me.

if (isset($_POST['cuisine'])) { 
    $cuisine = $_POST['cuisine']; 
    $noCuisine = count($cuisine);

    if($noCuisine >= 1) {

        $cuisines = '';
        for($i=0; $i < $noCuisine; $i++) {
            $cuisines .= $noCuisine[$i] . ", ";

        }
        echo $cuisines;

        $_SESSION['cuisines'] = $cuisines;
    } else {
        $error_alert[] = "Please select at least one Cuisine.";
    }
} else {
    $error_alert[] = "Cuisine field can NOT be empty";
}

Can anybody tell me whats the wrong with this? Thank you

Why don't you just store the array in the session variable, instead of a string? — Barmar
– Barmar, Commented Jul 16, 2015 at 3:18

Thi Tran · Accepted Answer · 2015-07-16 03:26:41Z

2

Make sure you call session_start()

Use $_SESSION['cuisine'] = implode(',', $cuisine) instead of these statements:

$cuisines = '';
for($i=0; $i < $noCuisine; $i++) {
      $cuisines .= $noCuisine[$i] . ", ";

}
echo $cuisines;
$_SESSION['cuisines'] = $cuisines;

edited Jul 16, 2015 at 3:26

answered Jul 16, 2015 at 3:22

Thi Tran

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Comments

Barmar · Accepted Answer · 2015-07-16 03:21:08Z

0

$noCuisines[$i] is wrong. $noCuisines is a number, not an array. It should be $_POST['cuisine'][$i].

But that whole loop is unnecessary, since PHP provides a built-in function implode for doing this.

$cuisines = implode(', ', $_POST['cuisine']);

You could also just store the array in the session variable, rather than converting it to a string:

$_SESSION['cuisines'] = $_POST['cuisine'];

answered Jul 16, 2015 at 3:21

Barmar

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4 Comments

user3733831 Over a year ago

If I use second method, Can I check value is an integer, before store in session?

Barmar Over a year ago

You can use array_filter($_POST['cuisine'], 'is_int') to get all the integer values in the array.

user3733831 Over a year ago

Barmar, I check it somethig like this, but it seems not working - if (array_filter($cuisine, 'is_int')) { $_SESSION['cuisines'] = $cuisine; }

Barmar Over a year ago

array_filter doesn't return true or false, it returns an array of all the elements that match the test

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