如何循环一个具有不同ID的单选按钮

Question

I'm trying to create a radio button in a loop, but I want to assign a unique id so it becomes a group where only one radio can be selected. Is this possible? My loop duplicates the same radio and I can select every button. I only want to select one.

<?php

$i = 0;
$i = $i++;
while($i>=0)
{
echo "<input type='radio' name='test[$i++]' value='test[$i++]'>test[$i++] ";
echo "<BR>";
$i++;

}
?>

UPDATE THIS WORKS!!!

<?php

$i = 0;
while($i++ < 5) 
{
    echo "<input type='radio' name='test' value='test[$i]'>test[$i] ";
}
?>

Answer 1

Learn basic PHP syntax. "$i++" is a string that contains a variable ($i), and two + characters. it's NOT going to increment your $i variable.

You're literally generating the following html:

<input type='radio' name='test[1++]' value='test[1++]'>test[1++]
<input type='radio' name='test[1++]' value='test[1++]'>test[1++]
<input type='radio' name='test[1++]' value='test[1++]'>test[1++]

As well, as written, your while() is going to be an infinite loop, since $i will ALWAYS be greater than 0.

Try this instead:

while($i++ < $limit) {
    echo "<input type='radio' name='test[$i]' value='test[$i]'>test[$i] ";
}