如何在php中访问同一页面上会话的增量值

Question

How to access the incremented value of session on the same page where we have defined the initial value of session, I am using this method for incrementation of value but on another page

<?php
    $_SESSION['indexValue'] = 1;
?>

This is my test.php page where i have decrelaed the inital value of session.

<?php
    $Incrementvalue = $_SESSION['indexValue'];
    $counter = (int)$Incrementvalue;
    if ($counter=$counter) { 
        $counter++;
        $_SESSION['indexValue'] = $counter;             
    }
    echo "$_SESSION['indexValue']";
?>

This is my getdata.php page where I have implmented the increment value function. Now i have to pass this increment value of Session again on test.php page . How can I perform this?

Answer 1

your code seems not to be thought off

first of all, you need to call session_start() at beginning then you can access everyewhere your $_SESSION variable (if you call session_start() before)

if ($counter=$counter) { 
      $counter++;
     $_SESSION['indexValue'] = $counter;             
}

this seems useless

$_SESSION['indexValue']++;

is enough

Answer 2

First of all there are few errors in code like

if ($counter=$counter) should be if ($counter == $counter)

And

echo "$_SESSION['indexValue']" should be echo $_SESSION['indexValue'] .

Now answer to your question is that session is accessible anywhere throughout the project/application. So you need not to pass it , just access it as $_SESSION['indexValue'] .