Hi,
Can anybody solve this query?
A parent process forks 2 child processes. How does the child process know it's PID without the parent process sending it.
Apart from the "ps-ef" option, what other options are there if any? (2 Replies)
Hi Friends :p
I have a little problem please help me out. I have a Unix based OS Sun Server having oracle 8i as database on it. The server has one client with windows OS. The client uses developer 2000 (GUI) to run query and run processes. I want to know how can I know the PID of a process run... (3 Replies)
hi all,
Is there a simple script anyone could through out to me, to find the pid of a process given the name. I actually need to bind this pid to a processor set. I would probably put these comamns in a shell script which would have.
a) kick start the executable
b) get the pid
c) bind it to a... (10 Replies)
Hi,
I need to get the pid of a process and have to store the pid in a variable and i want to use this value(pid) of the variable for some process. Please can anyone tell me how to get the pid of a process and store it in a variable. please help me on this.
Thanks in advance,
Amudha (7 Replies)
Hi
I have written a shell script to find and kill the particular process. Here in shell script i have written the code like
cnt = $(ps -ef | grep Shree)
echo $cnt
I am getting the output
root 2326 2317 0 14:39:46 pts/1 0:28 Shree -f fdc.fbconf FDCapp.fbapp
Here I want to... (2 Replies)
Hi
I use linux OS.
I've already written a function that allow me to get the process name by pid. (searching in /proc). Now I'd like to perform the inverse task.I mean get the process pid by its name.
I could write a function that search in every folder in /proc for the process name, but i... (2 Replies)
Hi All,
I searched other threads and could not find any relevant post about this.
I searched for process 0 in SUN OS and could find the sched/swapper process listed.
root 0 0 0 Apr 25 ? 0:06 sched
but i couldnt not find the swapper process (PID 0) in AIX. Is that... (4 Replies)
Hi all.
I need to get detailed information about a PID.
I have an app called Reflection X and it shows many things like Total CPU percent, User CPU (Nice) percent, FS Reads, etc.
My question is how can I get all that information on console?
Is there an archive with the detailed... (9 Replies)
Hi
I would like to know more about swapper process..
I knew that swapper is the first process with PID#0, used to perform process swap operations. It used to swap entire processes
But sometimes I find swapper process with PID#264
So my doubt is how many swapper process can exist in a system?... (2 Replies)
HI,
i used
ps -ef | grep 3539052 | grep -v grep
and i got a output like ths
root 3539052 3407918 0 May 07 - 709:31 /usr/sbin/syslogd
but what i need is instead of full path /usr/sbin/syslogd i want only the process name that is 'syslogd' here. (3 Replies)
Discussion started by: sumanthupar
3 Replies
LEARN ABOUT PHP
eval
EVAL(3) 1 EVAL(3)eval - Evaluate a string as PHP codeSYNOPSIS
mixed eval (string $code)
DESCRIPTION
Evaluates the given $code as PHP.
Caution
The eval(3) language construct is very dangerous because it allows execution of arbitrary PHP code. Its use thus is discouraged.
If you have carefully verified that there is no other option than to use this construct, pay special attention not to pass any user
provided data into it without properly validating it beforehand.
PARAMETERS
o $code
- Valid PHP code to be evaluated. The code mustn't be wrapped in opening and closing PHP tags, i.e. 'echo "Hi!";' must be passed
instead of '<? echo "Hi!"; >'. It is still possible to leave and reenter PHP mode though using the appropriate PHP tags, e.g.
'echo "In PHP mode!"; ?>In HTML mode!<? echo "Back in PHP mode!";'. Apart from that the passed code must be valid PHP. This
includes that all statements must be properly terminated using a semicolon. 'echo "Hi!"' for example will cause a parse error,
whereas 'echo "Hi!";' will work. A return statement will immediately terminate the evaluation of the code. The code will be exe-
cuted in the scope of the code calling eval(3). Thus any variables defined or changed in the eval(3) call will remain visible
after it terminates.
RETURN VALUES eval(3) returns NULL unless return is called in the evaluated code, in which case the value passed to return is returned. If there is a
parse error in the evaluated code, eval(3) returns FALSE and execution of the following code continues normally. It is not possible to
catch a parse error in eval(3) using set_error_handler(3).
EXAMPLES
Example #1
eval(3) example - simple text merge
<?php
$string = 'cup';
$name = 'coffee';
$str = 'This is a $string with my $name in it.';
echo $str. "
";
eval("$str = "$str";");
echo $str. "
";
?>
The above example will output:
This is a $string with my $name in it.
This is a cup with my coffee in it.
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
Tip
As with anything that outputs its result directly to the browser, the output-control functions can be used to capture the output of
this function, and save it in a string (for example).
Note
In case of a fatal error in the evaluated code, the whole script exits.
SEE ALSO call_user_func(3).
PHP Documentation Group EVAL(3)