I should add a disclaimer:
I am not affiliated with the sellers in any way, nor do I have any more knowledge than any other person reading the description about the item. This is simply for your reference.
I see a good number of people wanting a SPARC system to play with, and even more that... (1 Reply)
I was wondering if anyone knew of any good firewall softwares to run on open bsd. I'm currently running ip chains but I'm looking for easier to configure.
thanks (1 Reply)
Well i've been looking for some unix systems to download but with all the technical stuff they talk about on the sites i think that it would be betterif i just bought oneat a store so it comeswith directions and stuff, but is there any unix system that will coincidentally run with MS-dos mode? and... (1 Reply)
I have two SCO openserver systems, 1 in the US and 1 in the UK.
I am setting up a vpn to connect the two local networks that also have windows pc's on them.
Is there a way that either unix system can see the hard drive on the other unix system so that I can share data between them.
I run a cobol... (1 Reply)
Hi,
I need help to discovery the correct MIB to monitoring CPU, Memory and Hard Disc in Unix. I get any MIB in the internet, but donīt work. Anybody help-me?
Thanks.
Marcio Dunder Perin (2 Replies)
We have PPE/POE problems on a 32 PE p690 system. After upgrading to the latest AIX 5.2 (ML 05) POE/PPE environment on a p690, we've noticed that mpi jobs could not start. I've trace the problem in the communication of poe client routines and the pmdv4 (/etc/pmdv4) partition
manager on our... (0 Replies)
Hy folks,
I was wondering what is best unix system for notebook (laptop) computers. Older or newer, faster or slower? What is you opinion and experiance with unix on notebook?v (6 Replies)
I am looking for a commercial tool that will give me -UNIX Monitoring performance solution+ reports on CCV format. (as perfmon on windows machines).
The tool must have following counters per PROCESS:
Page Faults/sec
Virtual Bytes
% Processor Time
Handles count
Threads count... (19 Replies)
Hi :)
I have unix Operating Systems 5
I need working for user logout befor 10 minutes,In the
case that he is not active :o
what do I do? :rolleyes: (4 Replies)
Hi,
I need to ping all the systems in my network and then create a log for the ones, from where I successfully get the ping-response (ICMP packet).
Now, I've used the ping command successfully, but am unable to use 'grep' command to locate the IPs for which the ping was successful (so that I... (5 Replies)
Discussion started by: psychoTHEIST
5 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)