Skip to content

Instantly share code, notes, and snippets.

@Danack

Danack/Index.html

Created November 17, 2013 17:58
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save Danack/7516111 to your computer and use it in GitHub Desktop.
Save Danack/7516111 to your computer and use it in GitHub Desktop.
Download ZIP
Example of session behaviour. Default PHP locks the session object so that only one process can modify it at once, i.e. the numbers in the two frames will always be different. In APCu PS they can be duplicated.
Raw
frame1.php
<?php
session_start();
echo "This is frame 1 with ".ini_get("session.save_handler")." handler <br/>";
if (isset($_SESSION['foo']) == false) {
sleep(2);
$_SESSION['foo'] = 0;
}
for($x=0; $x<10 ; $x++) {
$_SESSION['foo'] += 1;
echo "Foo is ".$_SESSION['foo']."<br/>";
usleep(100000);
}
Raw
frame2.php
<?php
session_start();
echo "This is frame 2 with ".ini_get("session.save_handler")." handler <br/>";
if (isset($_SESSION['foo']) == false) {
sleep(2);
$_SESSION['foo'] = 0;
}
for($x=0; $x<10 ; $x++) {
$_SESSION['foo'] += 1;
echo "Foo is ".$_SESSION['foo']."<br/>";
usleep(100000);
}
Raw
Index.html
<html>
<body>
<iframe src='frame1.php' width='200px' height='400px'></iframe>
<iframe src='frame2.php' width='200px' height='400px' ></iframe>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment