hello everybody
i want to do synchronisation to access a shared memory bu i don't know too much how
well i know that i should use semaphore
have you any example of synchronisation of a shared memory by use of semaphore because i haven't find any
thanks (0 Replies)
Hello,
By now in linux 2.4, I have a sh script wich start 2 modules as follow :
/sbin/insmod module1.o
/sbin/insmod module2.o
I added an application in user space named "user_app" which communicate with module1 with a /proc.
I now tape the commands myself during code execution on a... (1 Reply)
Hello, hope my english will be sufficient to be clear enough...
I'm in progress on some script that should copy one big source file (200GB average) on one sata drive, to multiple (30+) sata drives.
Hardware is not the problem but copy performance is... If i launch all copy process at the same... (4 Replies)
i want to do file synchronisation...its a client-server model..have to do system call 'ls -l' in both client and server ..the server has to keeep track of client files and have to keep a back up of client files..and tracking must be done based on time stamp..
suppose if client contains a file... (2 Replies)
hello,
i need to modified my synch/back scripts....
i want that this script only syncro folders in destinationfolder.
f.e. when in destination are two folders
1) admin
2) users
but in SOURCE are three:
1) admin
2) users
3) antivirus
the script should only increnmential sync the... (0 Replies)
if i declare both but don't input any variables what values will the int array and file pointer array have on default, and if i want to reset any of the elements of both arrays to default, should i just set it to 0 or NULL or what? (1 Reply)
hi,
i have to do a program with following condition. please help me to write the program.
conditions-i have to create a thread with handle called first and it should call the member function(may do anything lik print anything) of a class called thread1 and for example let take that this first... (5 Replies)
Hi,
This is Solaris 9, which is service as NTP server for many unix clients. At backend, it it synching time with three GPS clocks. From past few days, I am noticing time reset to 1 second. Is this a problem ?
I was assuming that if it is a network issue or GPS clock connectivity issue, it... (14 Replies)
Discussion started by: solaris_1977
14 Replies
LEARN ABOUT PHP
array_intersect_ukey
ARRAY_INTERSECT_UKEY(3) 1 ARRAY_INTERSECT_UKEY(3)array_intersect_ukey - Computes the intersection of arrays using a callback function on the keys for comparisonSYNOPSIS
array array_intersect_ukey (array $array1, array $array2, [array $...], callable $key_compare_func)
DESCRIPTION array_intersect_ukey(3) returns an array containing all the values of $array1 which have matching keys that are present in all the argu-
ments.
PARAMETERS
o $array1
- Initial array for comparison of the arrays.
o $array2
- First array to compare keys against.
o $...
- Variable list of array arguments to compare keys against.
o $key_compare_func
- The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to
be respectively less than, equal to, or greater than the second.
int callback (mixed $a, mixed $b)
RETURN VALUES
Returns the values of $array1 whose keys exist in all the arguments.
EXAMPLES
Example #1
array_intersect_ukey(3) example
<?php
function key_compare_func($key1, $key2)
{
if ($key1 == $key2)
return 0;
else if ($key1 > $key2)
return 1;
else
return -1;
}
$array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4);
$array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8);
var_dump(array_intersect_ukey($array1, $array2, 'key_compare_func'));
?>
The above example will output:
array(2) {
["blue"]=>
int(1)
["green"]=>
int(3)
}
In our example you see that only the keys 'blue' and 'green' are present in both arrays and thus returned. Also notice that the values for
the keys 'blue' and 'green' differ between the two arrays. A match still occurs because only the keys are checked. The values returned are
those of $array1.
SEE ALSO array_diff(3), array_udiff(3), array_diff_assoc(3), array_diff_uassoc(3), array_udiff_assoc(3), array_udiff_uassoc(3), array_diff_key(3),
array_diff_ukey(3), array_intersect(3), array_intersect_assoc(3), array_intersect_uassoc(3), array_intersect_key(3).
PHP Documentation Group ARRAY_INTERSECT_UKEY(3)