Validating dynamic radio button group - php

Question

I am trying to validate the values of a radio button group in php.
The radio buttons are dynamically created in the form.
I can validate the radio button if it is only one radio group, for example.
<form>
<input type="radio" name="radio1">
<input type="radio" name="radio1">
</form>
this is for passing values of radio button
if(isset($_POST['radio1']))
{
*some codes
}
Since the radio buttons in my form are dynamically created, the names of the radio groups increment like radio1, radio2, radio3 so on.
How can I make validation for this dynamic radio button group?

Answer 1

Better create radio button with name as array. Like
<form method="post">
<input type="radio" name="radio[1]">
<input type="radio" name="radio[2]">
</form>
and server side you can check with a foreach
foreach($_POST['radio'] as $key=>$radio){
if($radio == "on"){
echo "$key is checked";
}
}

Answer 2

Try this
<form>
<input type="radio" class="rdo" name="radio[]">
<input type="radio" class="rdo" name="radio[]">
.....
<input type="radio" class="rdo" name="radio[]">//n value
</form>
var arr = new Array();
$('.rdo:checked').each(function() {
arr.push($(this).val());
});
In server side
$i=0;
if(count($_POST['radio'])==0){
return false;
}
foreach($_POST['radio'] AS $rs){
if($rs!=''){
//Some code
}
else{
$i++;
}
}
if($i==count($_POST['radio'])){
return false;
}else{
//some code
}

Answer 3

You can try using radio elements as array like below:
<form method="post">
<input type="radio" name="radio[0]" value="0.1">
<input type="radio" name="radio[0]" value="0.2">
<input type="radio" name="radio[1]" value="1.1">
<input type="radio" name="radio[1]" value="1.2">
<input type="submit" name="s" value="Submit" />
</form>
and from server try
if(isset($_POST['radio'])){
echo "<pr>";
print_r($_POST);
}