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(PHP 4, PHP 5)
ignore_user_abort — Set whether a client disconnect should abort script execution
Sets whether a client disconnect should cause a script to be aborted.
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
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.
Returns the previous setting, as an integer.
Example #1 A ignore_user_abort() example
// Ignore user aborts and allow the script
// to run forever
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.
// Did the connection fail?
if(connection_status() != CONNECTION_NORMAL)
// Sleep for 10 seconds
// 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
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().