I don't follow what these are...
this is what my text says...
"When a process is started, a duplicate of that process is created. This new process is called the child and the process that created it is called the parent. The child process then replaces the copy for the code the parent... (1 Reply)
Hello all, I am trying to create n child processes and control them from a parent process; say make child 3 print its pid and then child 5 do the same and some other stuff. Is there a way to accomplishing this after all the child processes are created via a call to fork().
Thank you,
FG (23 Replies)
Hello.
I have a global function name func1() that I am sourcing in from script A. I call the function from script B. Is there a way to find out which script called func1() dynamically so that the func1() can report it in the event there are errors?
Thanks (2 Replies)
Hello,
How many child processes are actually created when running this code ?
#include <signal.h>
#include <stdio.h>
int main () {
int i ;
setpgrp () ;
for (i = 0; i < 10; i++) {
if (fork () == 0) {
if ( i & 1 ) setpgrp () ;
printf ("Child id: %2d, group: %2d\n", getpid(),... (0 Replies)
Hello,
How many child processes are actually created when running this code ?
#include <signal.h>
#include <stdio.h>
int main () {
int i ;
setpgrp () ;
for (i = 0; i < 10; i++) {
if (fork () == 0) {
if ( i & 1 ) setpgrp () ;
printf ("Child id: %2d, group: %2d\n",... (1 Reply)
I need a mechanism to fork child processes and all child processes should connect to a server.but the number of child processes should be limited(for ex:50)
Here's my pseudo, but I cant figure out how to limit the child process number. Should I use a semaphore? or what?
for(;;)... (3 Replies)
I'm likely going to explain this clumsily, so apologies in advance:
I have the following script:
#!/bin/bash
pidPrefix="logGen"
checkPrime ()
{
if /sbin/ifconfig eth0:0|/bin/grep -wq inet;then isPrime=1;else isPrime=0;fi
}
killScript ()
{
/usr/bin/find /var/run -name... (4 Replies)
I am trying to implement the below using Ksh script on a Lx machine.
There is a file(input_file) with 100K records. For each of these records, certain script(process_rec) needs to be called with the record as input. Sequential processing is time-consuming and parallel processing would eat up... (2 Replies)
is there a universal way of getting the children of a particular process? i'm looking for a solution that works across different OSes...linux, aix, sunos, hpux.
i did a search online and i kept finding answers that were specific to Linux..i.e. pstree.
i want to be able to specify a process... (2 Replies)
Discussion started by: SkySmart
2 Replies
LEARN ABOUT PHP
in_array
IN_ARRAY(3) 1 IN_ARRAY(3)in_array - Checks if a value exists in an arraySYNOPSIS
bool in_array FALSE (mixed $needle, array $haystack, [bool $strict])
DESCRIPTION
Searches $haystack for $needle using loose comparison unless $strict is set.
PARAMETERS
o $needle
- The searched value.
Note
If $needle is a string, the comparison is done in a case-sensitive manner.
o $haystack
- The array.
o $strict
- If the third parameter $strict is set to TRUE then the in_array(3) function will also check the types of the $needle in the
$haystack.
RETURN VALUES
Returns TRUE if $needle is found in the array, FALSE otherwise.
EXAMPLES
Example #1
in_array(3) example
<?php
$os = array("Mac", "NT", "Irix", "Linux");
if (in_array("Irix", $os)) {
echo "Got Irix";
}
if (in_array("mac", $os)) {
echo "Got mac";
}
?>
The second condition fails because in_array(3) is case-sensitive, so the program above will display:
Got Irix
Example #2
in_array(3) with strict example
<?php
$a = array('1.10', 12.4, 1.13);
if (in_array('12.4', $a, true)) {
echo "'12.4' found with strict check
";
}
if (in_array(1.13, $a, true)) {
echo "1.13 found with strict check
";
}
?>
The above example will output:
1.13 found with strict check
Example #3
in_array(3) with an array as needle
<?php
$a = array(array('p', 'h'), array('p', 'r'), 'o');
if (in_array(array('p', 'h'), $a)) {
echo "'ph' was found
";
}
if (in_array(array('f', 'i'), $a)) {
echo "'fi' was found
";
}
if (in_array('o', $a)) {
echo "'o' was found
";
}
?>
The above example will output:
'o' was found
SEE ALSO array_search(3), isset(3), array_key_exists(3).
PHP Documentation Group IN_ARRAY(3)