[PHP] ftok() not returning a valid SysV shared memory index?

[user]

I'm running 4.3.3, and have made sure to compile it with 
--enable-sysvshm.  The code works on PHP5, so I think it might be a 
problem with PHP4.

#! /usr/bin/php -q

<?php

$key    = ftok("/etc/passwd", 'c');
$shmid  = shm_attach($key);
$shm_var = "Shared Memory Data";
shm_put_var($key, 25, $shm_var);
$shm_data = shm_get_var($key, 25);
echo "$key, $shmid, $shm_var, $shm_data\n";

shm_detach($shmid);

?>

When I try and run it, I get these errors:

Warning: 1661167266 is not a SysV shared memory index in 
/home/jason/dev/php/ipc/shm1.php on line 9
Warning: 1661167266 is not a SysV shared memory index in 
/home/jason/dev/php/ipc/shm1.php on line 10

Am I doing something wrong, or is this a problem with PHP?

Jason

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