07-09-2009
Thanks a lot! Using eval in front of touch worked.
Can you please explain the use of eval in this context?
10 More Discussions You Might Find Interesting
1. UNIX Desktop Questions & Answers
When i start my pc after the installation of suse linux it ask me for resolution but not for graphical interface, for console, can i run a command to change it again?
Thanx! (3 Replies)
Discussion started by: Linux_fan
3 Replies
2. IP Networking
I have an AIX4.3 box on our subnet, called LIMEST3.OURDOMAIN.CO.UK, with IP address 10.103.1.13
It has the following entry in its own /etc/hosts:
10.103.1.13 limest3 limest3.ourdomain.co.uk
Now, if I ping limest3.ourdomain.co.uk or ping 10.103.1.13, the result is instant. However if I ping... (4 Replies)
Discussion started by: grimbleshanks
4 Replies
3. Solaris
Hi,
I have a Sun Ultra 10 (SPARC) with Solaris 10 installed. The screen resolution is very poor and grainy which I have been unable to rectify. Every time I try to set the resolution I get the following:
'The XServer does not support the XRandR extension. Runtime resolution changes to the... (5 Replies)
Discussion started by: patcom
5 Replies
4. Debian
Hi gurus I have notebook with connected external monitor. output of my xrandr looks like
Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 2960 x 1050
VGA connected 1680x1050+1280+0 (normal left inverted right x axis y axis) 478mm x 300mm
1680x1050 60.0*+
1280x1024 ... (2 Replies)
Discussion started by: wakatana
2 Replies
5. Solaris
Hi all!
On my SPARC mashine I have changed the screen resolution from default to: output-device screen r1024x768x75, because the OBP picture too big (e.g. Sun Logo and OBP text).
Now, after the system booting I have the problem with OpenWindows picture (e.g. the window manager does not display... (2 Replies)
Discussion started by: wolfgang
2 Replies
6. Shell Programming and Scripting
hello there,
basically im screwed with a variable that should take the last modification date of a file.
my code is
fileCreationTime=$(( `ls -l $fileName | tr -s " " | cut -d " " -f6` ))
my problem arise coz when the code is executed and stored in a file the return value is 1993 and not... (4 Replies)
Discussion started by: thurft
4 Replies
7. Shell Programming and Scripting
my script is some thing like this
i11="{1,2,3,4,5,6,7,8,9,10,11,}"
echo "enter value"
read value ..............suppose i11
x="$value"
echo "$($value)" .............the echo should be {1,2,3,4,5,6,7,8,9,10,11,}
but its showing "i11" only.
plz help me out to get desired... (10 Replies)
Discussion started by: sagar_1986
10 Replies
8. Debian
Hello,
I am running Debian 6.0 on a Sun Ultra 5 and the openbox window manager. The window is way larger than the screen and minimized icons go off the screen and I can't get them back. The mode is set to 1280x1024 in the Screen section of xorg.conf and Virtual is also set to 1280x1024 which is... (4 Replies)
Discussion started by: snorkack59
4 Replies
9. Red Hat
Good morning everyone,
I have been having screen resolution issues with RHEL 6.3. Our current setup is a laptop connected to a KVM/IP server. This is the desired scenario:
RHEL laptop
Windows XP laptop
KVM/IP server
The RHEL laptop has the file /etc/gdm/Init/Default populated with... (3 Replies)
Discussion started by: rchaud10
3 Replies
10. Shell Programming and Scripting
I have a file File1 containing lines like below
apple ${FRUIT}-Color
orange ${FRUIT}-Color
banana ${FRUIT}-Color
Now, in my shell I'm reading the file like below
while read FRUIT DESC; do echo $FRUIT $DESC; done < File1
which outputs -
apple ${FRUIT}-Color
orange ${FRUIT}-Color... (3 Replies)
Discussion started by: nexional
3 Replies
EVAL(3) 1 EVAL(3)
eval - Evaluate a string as PHP code
SYNOPSIS
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)