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How to replace list item in best way
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109
Use Lambda to find the index in the List and use this index to replace the list item.
List<...
Show MySQL host via SQL Command
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200
To get current host name :-
select @@hostname;
show variables where Variable_name like '%host%...
Hiding the legend in Google Chart
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answered Jan 30 '12 at 18:39
Trevor PesoutTrevor Pesout
3,65211 gold badge1111 silver badges33 bronze badges
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Javadoc @see or {@link}?
...ited Oct 2 '17 at 17:15
user177800
answered Apr 10 '12 at 22:15
MarioDSMarioDS
11.4k14...
How to check for a valid Base64 encoded string
...e64 string, as it will only be composed of characters 'A'..'Z', 'a'..'z', '0'..'9', '+', '/' and it is often padded at the end with up to three '=', to make the length a multiple of 4. But instead of comparing these, you'd be better off ignoring the exception, if it occurs.
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Limiting the number of records from mysqldump?
... skaffman says, use the --where option:
mysqldump --opt --where="1 limit 1000000" database
Of course, that would give you the first million rows from every table.
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How to reload apache configuration for a site without restarting apache
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olly_ukolly_uk
10.2k33 gold badges3737 silver badges4545 bronze badges
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Android: How to enable/disable option menu item on button click?
...example_foobar).setEnabled(false);
}
return true;
}
On Android 3.0 and higher, the options menu is considered to always be open when menu items are presented in the action bar. When an event occurs and you want to perform a menu update, you must call invalidateOptionsMenu() to request that...
Tuning nginx worker_process to obtain 100k hits per min
...er_processes 4; # 2 * Number of CPUs
events {
worker_connections 19000; # It's the key to high performance - have a lot of connections available
}
worker_rlimit_nofile 20000; # Each connection needs a filehandle (or 2 if you are proxying)
# Total amount of users you can serve = worke...
How to get an array of specific “key” in multidimensional array without looping
...ap(function ($ar) {return $ar['id'];}, $users);
Before(Technically php 4.0.6+), you must create an anonymous function with create_function instead:
$ids = array_map(create_function('$ar', 'return $ar["id"];'), $users);
s...