ignore_user_abort
Set whether a client disconnect should abort script execution
Description
int ignore_user_abort
([ string $value
] )
When running PHP as a command line script, and the script's tty goes
away without the script being terminated then the script will die the
next time it tries to write anything, unless
value is set to TRUE
Parameters
-
value
-
If set, this function will set the ignore_user_abort ini setting
to the given value. If not, this function will
only return the previous setting without changing it.
Return Values
Returns the previous setting, as an integer.
Examples
Example #1 A ignore_user_abort example
<?php
// Ignore user aborts and allow the script
// to run forever
ignore_user_abort(true);
set_time_limit(0);
echo 'Testing connection handling in PHP';
// Run a pointless loop that sometime
// hopefully will make us click away from
// page or click the "Stop" button.
while(1)
{
// Did the connection fail?
if(connection_status() != CONNECTION_NORMAL)
{
break;
}
// Sleep for 10 seconds
sleep(10);
}
// If this is reached, then the 'break'
// was triggered from inside the while loop
// So here we can log, or perform any other tasks
// we need without actually being dependent on the
// browser.
?>
Notes
PHP will not detect that the user has aborted the connection until
an attempt is made to send information to the client. Simply using
an echo statement does not guarantee that information is sent, see
flush.
See Also
- connection_aborted
- connection_status
-
Connection Handling
for a complete description of connection handling in PHP.