how do i go about compiling a simple hello world script in mandrake linux? this is something i have had no luck in finding on the main site, please help?
thank you (2 Replies)
Hi all,
Yeasterday I try to compile c program by using cygwin. I just find an errors the fist one is concerinig about the end of the line.
To summit my Assignment which is the day after tommorow I have to compile my c program by using just gcc.
If any one know what do I have to... (5 Replies)
how can i do static compilation in cc and -lldap
i have system defined and user defined header file.
Can any one suggest any site where from i can get some information about static and dynamic compilation.
Thankx (1 Reply)
Hi ,
I have freeBSD installed. I need to compile a c program which has embedded informix sql statement in it.
Can you please help me to to do the same. I need to know what I should I do to make BSD compatable to compile the c program ?
Thanks in advance
Jisha (3 Replies)
hi,
I want to compile a program in C. It have a multiple calls to teradata. I have no idea how to compile in Aix.
The compiler that I should be use is cc.
I tried
cc -G -KPIC tdsfbd0358.c this generates a tdsfbd0358.i and after I have no Idea what I have to make, a link? how?... (3 Replies)
Hi Guys,
I wonder I had have a look to the cc compile options but I could be missing one but basically I'm compliling a c program where I will storing a command to connect to a database and also userid and password. The issue is that after the module is generated using a command like strings I... (14 Replies)
Hi,
I having an issue while compiling a C program in USS (z/OS) machine.
I was able to create objest files (.o) from source (.c) files but when I try to create a binary file from the object files I am getting the below error.
$ cc util.o sock.o app.o -lnsl -o ptf
FSUM3067 The archive... (7 Replies)
Hello,
I'm trying to install ansifilter which is a program that translates ansi text to HTML.
The idea is to install it on AIX 7.1 but is failing. All de appropriate gcc libraries and requirements for this software were installed successfully, but when I do the gmake I get the following... (4 Replies)
Hi Team,
I am very new to this forum and hope someone will help me in resolving the issue.
I am new to Pro C also.
I made some changes to the existing Pro C program and want to run the program with the changes.
But I am unable to neither compile nor run the program.
Please do the... (2 Replies)
Discussion started by: prakashs1218
2 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)