Dilema with separating values with comma

[Anon]

Hello. Basically, I was wondering how
to take the form values and list them left to right, separated by commas

except the last value does not have the comma after it

The idea is to not know how many form fields are there. I obviously could just do

$field1, $field2, $field3 if I knew there are 3 fields

However, with a script I am working on, sometimes I will have 5, 10, 20 form fields (dynamic form, user input determines how many fields)

Anyway, it is also just something good to know. Implode/explode in php.net manual didn't solve it. Does anybody know a proven way to display the list in commas, except, the last value doesn't hvae the , after?

Thanks

[mattw]

Well, this may not be the best way, but it's how I do it on my site...

$values = array ("first","second","third","etc");

echo $values[0];
for($i=1;$i < (count($values);$i++) {
echo ", " . $values[$i];
}

That assumes you have atleast one value. You can add a check in there to make sure it exists also...

Matt Wade
codewalkers.com

[terje-s]

<?
$test[] = 'one';
$test[] = 'two';
$test[] = 'three';

print implode(", ", $test);
?>

echoes out the string "one, two, three" (without quotes). This would solve the problem, provided that you have the values in an array. (I.e. use input names like answ[fieldname], then implode $answ)

Secondly, if you take each variable and add a comma between them, like this;

$fields = "f1 f2 f3 f4 f5"; // junk fieldnames

$outputString = '';
foreach (explode(' ', $fields) AS $key => $val) {
$outputString .= "$$val, ";
}

You can trim it to remove trailing space;

$outputString = trim($outputString);

And then remove the last character;

$outputString = substr($outputString, 0, strlen($outputString)-1);

.. Alternately use a regexp, a bit safer maybe;

ereg("(.*),$", $outputString, $new);

(then use $new[1])..

[Anon]

Thanks, guys, tomorrow when I am awake I will test them out and learn how/why they work

I will assume that it is ok that the # of form fields answered is dynamic and changes dynamically, so one moment that code will be needed for 5 form fields, then another user will fill out 20

this is because a script I am developing will create a form and # of fields based on user input, that is why I didn't hand code the array, of course

Thanks, I will check it out, this is very nice of you to help

Joel