note 115057 added to function.set-time-limit

Both set_time_limit(...) and ini_set('max_execution_time',...); won't count the time cost of sleep,file_get_contents,shell_exec,mysql_query etc, so i build this function my_background_exec(), to run static method/function in background/detached process and time is out kill it: my_exec.php: <?php function my_background_exec($function_name, $params, $str_requires, $timeout=600) {$map=array('"'=>'\"', '$'=>'\$', ''=>'\', '\\'=>'\\\\', '!'=>'\!'); $str_requires=strtr($str_requires, $map); $path_run=dirname($_SERVER['SCRIPT_FILENAME']); $my_target_exec="/usr/bin/php -r \"chdir('{$path_run}');{$str_requires} \\\$params=json_decode(file_get_contents('php://stdin'),true);call_user_func_array('{$function_name}', \\\$params);\""; $my_target_exec=strtr(strtr($my_target_exec, $map), $map); $my_background_exec="(/usr/bin/php -r \"chdir('{$path_run}');{$str_requires} my_timeout_exec(\\\"{$my_target_exec}\\\", file_get_contents('php://stdin'), {$timeout});\" <&3 &) 3<&0";//php by default use "sh", and "sh" don't support "<&0" my_timeout_exec($my_background_exec, json_encode($params), 2); } function my_timeout_exec($cmd, $stdin='', $timeout) {$start=time(); $stdout=''; $stderr=''; //file_put_contents('debug.txt', time().':cmd:'.$cmd."\n", FILE_APPEND); //file_put_contents('debug.txt', time().':stdin:'.$stdin."\n", FILE_APPEND); $process=proc_open($cmd, [['pipe', 'r'], ['pipe', 'w'], ['pipe', 'w']], $pipes); if (!is_resource($process)) {return array('return'=>'1', 'stdout'=>$stdout, 'stderr'=>$stderr); } $status=proc_get_status($process); posix_setpgid($status['pid'], $status['pid']); //seperate pgid(process group id) from parent's pgid stream_set_blocking($pipes[0], 0); stream_set_blocking($pipes[1], 0); stream_set_blocking($pipes[2], 0); fwrite($pipes[0], $stdin); fclose($pipes[0]); while (1) {$stdout.=stream_get_contents($pipes[1]); $stderr.=stream_get_contents($pipes[2]); if (time()-$start>$timeout) {//proc_terminate($process, 9); //only terminate subprocess, won't terminate sub-subprocess posix_kill(-$status['pid'], 9); //sends SIGKILL to all processes inside group(negative means GPID, all subprocesses share the top process group, except nested my_timeout_exec) //file_put_contents('debug.txt', time().":kill group {$status['pid']}\n", FILE_APPEND); return array('return'=>'1', 'stdout'=>$stdout, 'stderr'=>$stderr); } $status=proc_get_status($process); //file_put_contents('debug.txt', time().':status:'.var_export($status, true)."\n"; if (!$status['running']) {fclose($pipes[1]); fclose($pipes[2]); proc_close($process); return $status['exitcode']; } usleep(100000); } } ?> a_class.php: <?php class A { static function jack($a, $b) {sleep(4); file_put_contents('debug.txt', time().":A::jack:".$a.' '.$b."\n", FILE_APPEND); sleep(15); } } ?> test.php: <?php require 'my_exec.php'; my_background_exec('A::jack', array('hello', 'jack'), 'require "my_exec.php";require "a_class.php";', 8); ?> ---- Server IP: 72.52.91.14 Probable Submitter: 122.225.33.35 ---- Manual Page -- http://php.net/manual/en/function.set-time-limit.php Edit -- https://master.php.net/note/edit/115057 Del: integrated -- https://master.php.net/note/delete/115057/integrated Del: useless -- https://master.php.net/note/delete/115057/useless Del: bad code -- https://master.php.net/note/delete/115057/bad+code Del: spam -- https://master.php.net/note/delete/115057/spam Del: non-english -- https://master.php.net/note/delete/115057/non-english Del: in docs -- https://master.php.net/note/delete/115057/in+docs Del: other reasons-- https://master.php.net/note/delete/115057 Reject -- https://master.php.net/note/reject/115057 Search -- https://master.php.net/manage/user-notes.php