I have an app for making questionnaires. Users have index.php page where they create the questions and choose minimum number of answers, then they have process.php page where they can enter their answers or add more answers.
PROBLEM: When user clicks add more button, it creates textarea of the particular question but with the wrong name. The add more button should add a textarea and change its name according to the minimum of the defined textareas. So if you for ex. have 4 defined textareas in question2, the next textareas should be like odg25, odg26, odg27, odg28 etc...
The problem is in variable $k (process.php) - because it is not defined in addmore function, but I don't know how to pass somehow in this part of code to make it happen.
INDEX.PHP
<input id="btntxt" type="submit" value="TEXT" onclick="addtxt();" /><br/><br/>
<form action="process.php" method="post">
Title: <br/><input type="text" name="naslov" size="64" required ><br/>
Maximum characters: <br/><input type="text" name="chars" size="64"><br/><br/>
<div id="brain1"></div><br/>
<input type="submit" name="submit" value="CONFIRM"><br/>
</form>
PROCESS.PHP
<script type="text/javascript">
<?php $chars = $_POST['chars']; ?>
function addmore(index) {
var textarea = document.createElement("textarea");
textarea.name = "odg" + index + //WHAT SHOULD I ADD HERE???;
textarea.rows = 3;
textarea.setAttribute('maxlength',<?php echo $chars ?>);
var div = document.createElement("div");
div.innerHTML = textarea.outerHTML;
document.getElementById("inner"+index).appendChild(div);
}
</script>
<body>
<?php
$bla = "";
$pitanje = $_POST['question'];
$length = count($_POST['question']);
$req = $_POST['req'];
$requiem = '';
$min = $_POST['min'];
$area = array("","","","","","","","","","","","","","","");
for($j=1; $j<$length+1; $j++) {
if($_POST['question'][$j] != "") {
if(($min[$j])!="") {
for($k=1;$k<=$min[$j];$k++) {
$area[$j] .= '<textarea name="odg'.$j.$k.'" rows="3"'.$requiem.' maxlength="'.$chars.'" ></textarea><br/>';}}
if(($min[$j])=="") {
$area[$j] = '<textarea name="odg'.$j.$k.'" rows="3"'.$requiem.' maxlength="'.$chars.'" ></textarea>';}
$addmore = '<input type="button" name="more" value="Add more" onClick="addmore('.$j.');">';
$bla .= $j.') '.$pitanje[$j].'<br/>'.$area[$j].'<div id="inner'.$j.'"></div>'.$addmore.'<br/>';}}
echo $bla;
?>
FNCS.JS
var n = 1;
function addtxt() {
var textarea = document.createElement("textarea");
textarea.name = "question[" + n + "]";
var required = document.createElement("input");
required.type = "checkbox";
required.name = "req[" + n + "]";
var minimum = document.createElement("input");
minimum.type = "text";
minimum.name = "min[" + n + "]";
var div = document.createElement("div");
div.innerHTML = n + ". Question: " + "<br />" + textarea.outerHTML + "<br />" + "Required: " + required.outerHTML + "<br />" + "Min: " + minimum.outerHTML + "<br /><hr/><br/>";
document.getElementById("brain1").appendChild(div);
n++;
}
