Php reload 10 times and echo a number

Question

I have my code :

for ($i=0; $i<10; $i++){

    echo $i;
    header("Refresh:3");
    exit;
}

What I'm trying to do is to reload page 10 times (I thought for loop could help) and echo each time a number. So it's basically like:

echo "0" then refresh and echo "1" then refresh and echo "2" and so on for 10 times. What am I doing wrong?

Answer 1

You need to remember where the counter is and that requires using the SESSION to get around the stateless nature of a web page

<?php
session_start();
if (! isset($_SESSION['cnt']) ) {
    $_SESSION['cnt'] = 0;
}

if ( $_SESSION['cnt'] < 10 ) {
    // show on page
    echo $_SESSION['cnt'];

    // increment count
    $_SESSION['cnt'] = $_SESSION['cnt'] + 1;

    header("Refresh:3");
    exit;
}