problem with foreach

oaskedal

Hi!

I have a session array and I'd like a foreach loop to print out the information for me in a html table with each subjectname attached to the right value.

I've tried something like this, but I'm no good at it, so maybe there some faults. Something isn't right, that's for sure..

foreach ($_SESSION[$name] as $key=>$value) {
    echo "<table><tr><td colspan='2'> $key : </td></tr>
	<tr><td>$value</td>";
	}
	foreach ($_SESSION[$name] as $key=>$value) {
    foreach ($key as $v2) {
        echo "<td>$v2</td></tr></table>";
    }

My session array is defined like this:

$_SESSION[$name] = array("subject"=>array($_POST['subjectName']),"value"=>array($_POST['fieldValue']));

oaskedal

I see that I missed a } in one of the foreach loops, but still it comes with the message:

WARNING! Invalid argument supplied for foreach() in...

PHPist

You use foreach() loop in the context of scalar variable in a subloop :

foreach ($_SESSION[$name] as $key=>$value) { 
    foreach ($key as $v2) {
    ///..........

But in the definition $SESSION[$name][$key]:

$_SESSION[$name] = array("subject"=>array($_POST['subjectName'])///.......

So in the foreach ($key as $v2) { value of $key equal to string - "subject", and this is your problem.

So you must change loop in the next way:

foreach ($_SESSION[$name] as $key=>$value) { 
    foreach ($value as $v2) {
    //....

oaskedal

Hi!

Now I only get the text 'Array' in all my values, instead of real numbers or text that I registered...

The inputfields (that are located on a different page) is named subjectname[], and the other one is named fieldvalue[] ....if that might start a problem...

my code (the way you mentioned it should be):

foreach ($_SESSION[$name] as $key=>$value) {
    echo "<table><tr><td colspan='2'> $key : </td></tr>
    <tr><td>$value</td>";
    }
    foreach ($_SESSION[$name] as $key=>$value) {
    foreach ($value as $v2) {
        echo "<td>$v2</td></tr></table>";
    } 

}

Weedpacket

oaskedal wrote:
My session array is defined like this:
$_SESSION[$name] = array("subject"=>array($_POST['subjectName']),"value"=>array($_POST['fieldValue'])); 

Why are you putting $_POST['subjectName'] and $POST['fieldValue'] into their own one-element arrays before you put those arrays in the session array? Why not just

$_SESSION[$name] = array("subject"=>$_POST['subjectName'],"value"=>$_POST['fieldValue']);

Then you would have an array of arrays of strings, instead of an array of arrays of arrays.