SELECT
t2.partnum p2,
t1.partnum p1,
t2.partnum - t1.partnum res
FROM nspcl t1
INNER JOIN nspcl t2 ON t1.id = (t2.id - 1)
$command = 'nohup php my_super_script.php --dir_param=/my_work_dir/ > /dev/null 2>&1 & echo $!';
exec($command, $output);
$pid = (int)$output[0];
"autoload": {
"psr-4": {
"rootnamespace\\": "/"
}
}