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Danack/Index.html

Created November 17, 2013 17:58
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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>
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