getting number of selected radioboxes

marCello

Suppose I want to store in an array the data coming from a form in a previous page, but I don't want to use implode/explode functions. Is there a way for me to know the number of chosen radioboxes in a form?

for ($i=0; $i <$num_results; $i++) { 
    $MyOptions = htmlspecialchars(stripslashes($rowb["DBField"])); 

echo "<input name=\"MyOptions".$i."\" type=\"radio\" value=\"".$MyOptions."\">"; 
}

Actual page:

for($i = 0; $i<$HowToGetThis; $i++) 
    $MyArray[$i] = $HTTP_POST_VARS['MyOptions'.$index];

$HowToGetThis is the number of chosen radio boxes in the previous page, which I don't know how to access. Maybe is not even possible to do that.

Can anyone help?

jot-87

Perhaps you could use a hidden field to stor the value of $num_results in.

<input type="hidden" name="num_results" value="<?php echo $num_results; ?>" />

<?php 
for(....

marCello

$numresults stands here for all options, and what I am looking for is the number of options that would be selected by the user. Actually they should be checkboxes instead, if you see what I mean.

$numresults would eventually be different from $HowToGetThis which is my problem.

devinemke

echo '<form action="' . $_SERVER['PHP_SELF'] . '" method="POST">';
for ($i = 0; $i < 5; $i++)
{  

	echo '<input name="MyOptions[' . $i . ']" type="checkbox" value="'. $i . '">';
}
echo '<br><input type="submit" name="submit" value="submit"></form>';

if (isset ($_POST['submit']))
{
	if (!isset ($_POST['MyOptions'])) {$_POST['MyOptions'] = array ();}
	echo count ($_POST['MyOptions']) . ' checked';
}

marCello

Thanks Devinemke

That would work if I changed my variable into an array. Here is another idea I got from devshed forum for illustration in case someone needs help with the same issue. This solution works without using an array.

Marcello