Getting strings out of an dynamic array

Question

foreach ($_GET['friend_name'] as $id => $key) {
    if (!empty($_GET['friend_vorname'][$id])) {
        var_dump($_GET['friend_anrede_'.$id][0]);
        $msg .= 'Anrede: ' . $_SESSION['friend_anrede'][$id][$id] .'<br>Vorname: ' 
              . $_GET['friend_vorname'][$id] . '<br>Name: '
              . $_GET['friend_name'][$id] . '<br>Strasse / Nr.: '
              . $_GET['friend_strasse_nr'][$id] . '<br>PLZ / Ort: '
              . $_GET['friend_plz_ort'][$id] . '<br><br>';
    }
}

The var_dump() returns:

string(4) "Frau" string(4) "Herr" string(4) "Frau"

I would now like to use the single stings for my variable $msg just like all the other variables.

I thought $_SESSION['friend_anrede'][$id][$id] would make it but it only returns:

F

I would be very glad if someone could get me out of this array labyrinth!

I am not sure if your question is entirely clear but what should be the output that you are looking for ? — Maximus2012
– Maximus2012, Commented Jan 11, 2016 at 16:11
What if you change $_SESSION['friend_anrede'][$id][$id]to $_SESSION['friend_anrede'][$id]? Not either sure I understand, though. — M. Eriksson
– M. Eriksson, Commented Jan 11, 2016 at 16:16
@Maximus2012 since the foreach will loop 3 times. The values should look like this: 1. Frau, 2: Herr, 3: Frau ... just the same as the result of var_dump but not as an array. — Pom Canys
– Pom Canys, Commented Jan 11, 2016 at 16:16
@MagnusEriksson $_SESSION['friend_anrede'][$id] only returns: Frau — Pom Canys
– Pom Canys, Commented Jan 11, 2016 at 16:40

HireThisMarine · Accepted Answer · 2016-01-11 16:45:23Z

3

All you need is $_SESSION['friend_anrede'][$id]. Remember that PHP allows you to treat a string as an array of characters, like this

$foo = 'Hello';
echo $foo[1]; // outputs 'e'

So your $_SESSION['friend_anrede'][$id][$id] was dumping out the 0th-character of the 0th-element in your friend_anrede array:

$_SESSION['friend_anrede'][$id][$id]
^------ 'Frau' ---------------^[0]
'Frau'[0] -> 'F'

edited Jan 11, 2016 at 16:45

HireThisMarine

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answered Jan 11, 2016 at 16:16

Marc B

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2 Comments

Pom Canys Over a year ago

Thank you for your answer. My variable $_GET['friend_anrede'] looks a bit different, since there are multiple variables which look like this: $_GET['friend_anrede_0'], $_GET['friend_anrede_1'], $_GET['friend_anrede_2'] etc. The numbers at the end are getting added dynamically. I think that must be the point of my issue.

Marc B Over a year ago

it's php. there's no need for creating dynamic "keys" like that. you can use the array-notation naming hack <input ... name="friend_anrede[0]", and then you'll get an array in $_GET['friend_anrede'].

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