CODEWITHSUNDEEP
phpsession
A Star
A Star

Reputation: 637

Is there a way to use multiple variables inside a $_GET, $_POST or $_SESSION declaration?

Is there a way to use multiple variables inside a $_GET, $_POST or $_SESSION declaration?

For example: $_SESSION['session_array{$i}'].

$i being a counter variable so that each array I save has a different name.

I need this for saving multiple associative arrays in the $_SESSION, if there is another way this could be done this would also be helpful.

Upvotes: 1

Views: 289

Answers (5)

Josh
Josh

Reputation: 8191

You can (for $_POST, $_GET, $_SESSION, $_REQUEST, respectively) do

$_SESSION["session_array{$i}"]

But, you probably are looking for, or should rather do

$_SESSION['session_array'][$i]

Also, don't forget to use session_start() before trying to use session variables.

Upvotes: 5

mowwwalker
mowwwalker

Reputation: 17382

Session:

For a Session, you can do:

$_SESSION['key']=array('one','two','three');
echo $_SESSION['key'][1] // echos 'two'

POST:

For a form submit with post you can add [] to the end of the input name to put it in an array

<form method="POST" action='/' >
    <input name='arr[]' type="text" value="a">
    <input name='arr[]' type="text" value="b">
    <input name='arr[]' type="text" value="c">
</form>

To be accessed like:

echo $_POST['arr'][0] // echos 'a'

GET:

Same as with the form, you just add [] to the variable name and it can be accessed as an array.

if you visit www.yoursite.com/index.php?test[]=a&test[]=b

you can do:

echo $_GET['test'][1] // echos 'b'

Upvotes: 1

David Houde
David Houde

Reputation: 4778

All of these support multidimensional arrays.

i.e:

$_SESSION['fruit']['apple']['green']; 
$_GET['country_list']['US'];

or with variable:

$_GET['count'][$i];

Upvotes: 2

Ry-
Ry-

Reputation: 225044

You can store an array in $_SESSION (I wouldn't recommend doing it in the other ones, though):

$session_array = array();
$session_array[$i] = 'some value';
$_SESSION['session_array'] = $session_array;

http://www.phpriot.com/articles/intro-php-sessions/7 looks like a good intro for you.

Upvotes: 1

PeeHaa
PeeHaa

Reputation: 72681

Why not just make the array multidimensional:

$_SESSION['session_array'][$i]

Regarding the $_GET and $_POST superglobals: You don't want to store stuff into that manually but rather by a get or post request. So that's not really an issue IMHO.

Still you can have a multidimensional $_POST superglobal when using input form like:

<form method="post" action="">
  <input type="text" name="name[]">
  <input type="text" name="name[]">
</form>

Upvotes: 0

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