How to create a cookie

[KALLIYAN]

I lost in the vast Internet resources. Some offer a full paragraph, other 2 lines but does not offer what I want to do etc. I would like a cookie. Preferably in php. The smallest possible and simple cookie that prevents the activation of a javascript if it has already been run once on all of my site. For example with the following code:

<script>
alert('This script is repeated on every page of my site but do not view that once during the session of the surfer);
</script>

Could you help me?

[Katty]

You set a cookie and put a value to "false", for example

after you make a condition

if($_COOKIE['hello'] == false)
{
 echo 'your script';
setcookie('hello', true);
 

}

[KALLIYAN]

Thank you for your answer

The following simple code does not work on my php page.

PHP Code:

<?php
setcookie('MyCookie', 'false', (time() + 3600));
?>
<script>
if($_COOKIE['MyCookie'] == false)
{
alert('this message will pop 1000 times!')
setcookie('MyCookie', true);
}
</script>

Can you help me to fix it?

[Katty]

You mixed up php and javascipt:

PHP Code:

<?php
setcookie('MyCookie', 'false', (time() + 3600));
?>
<script>
<?php
if($_COOKIE['MyCookie'] == false):
?>
alert('this message will pop 1000 times!')
<?php
setcookie('MyCookie', true);
endif;
?>
</script>

and after that, you can manage cookies in javascript and repeat the same code in a cleaner way

<script type="text/javascript">
  if(!document.cookie)
  {
   alert("first" );
   document.cookie = 'visited';
  }
 </script>