[SOLVED] can someone explain this code? please

[sayedsohail]

Hi,

 

Can someone explain this code for me please?

 

<?php
define('POST_DELAY', 30);

if(time() - $_SESSION['last_access'] > POST_DELAY)
{
  // run update queries
}
else
{
  echo "You must wait " . POST_DELAY . " seconds before submitting another post.";
}

$_SESSION['last_access'] = time();
?>

[thryb]

set your posting delay at 30 sec,

if the time is > than 30 sec (last post) then you can execute the query you want

if not then you must wait ...

[sayedsohail]

what does the define do and what about $_SESSION['last_access'];

[hvle]

define assigned a value to a constant, in this code, it will assign 30 to constant POST_DELAY

$_SESSION['last_access'] hold the time in which user last updated the query or attempted to update query

[Jessica]

You could have looked some of this up in the manual, like define()

[LemonInflux]

On forums, this is called 'flood control'

[sayedsohail]

define assigned a value to a constant, in this code, it will assign 30 to constant POST_DELAY

$_SESSION['last_access'] hold the time in which user last updated the query or attempted to update query

 

How do i assign the value to $_SESSION['last_access']; i am not sure if the last_access is the reserved value variable for sessions, or i need to assing the value to this variable.

[HuggieBear]

You can assign a value to it like this:

 

$_SESSION['last_access'] = now();

 

Regards

Huggie