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ignore_user_abort

ignore_user_abort

(PHP 4, PHP 5)

ignore_user_abortSet whether a client disconnect should abort script execution

说明

int ignore_user_abort ([ string $value ] )

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 TRUE

参数

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.

返回值

Returns the previous setting, as an integer.

范例

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.
?>

注释

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().

参见


  • connection_aborted
  • connection_status
  • connection_timeout
  • constant
  • define
  • defined
  • die
  • eval
  • exit
  • highlight_file
  • highlight_string
  • ignore_user_abort
  • pack
  • php_check_syntax
  • php_strip_whitespace
  • show_source
  • sleep
  • sys_getloadavg
  • time_nanosleep
  • time_sleep_until
  • uniqid
  • unpack
  • usleep
  • __halt_compiler
  • PHP MySQL HTML CSS JavaScript MSSQL AJAX .NET JSP Linux Mac ASP 服务器 SQL jQuery C# C++ java Android IOS oracle MongoDB SQLite wamp 交通频道

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