Hi - I am totally new to UNIX so please bear with me...
I run a java program on Win NT server to do file ftp to UNIX server.
I log in, cd, create ftp file on UNIX and quit from my java progam - all works well.
Now I want to execute a script on UNIX.
At the UNIX 'console'/'shell' (!?) you... (1 Reply)
Hi,
I am trying to export some 50 tables and i want to write a loop and execute the script for every table. I did for one table and its running. Can any one help me for setting a loop and running the script for all the tables
thanks (6 Replies)
I have created get_list.bat file containing following line:
dir /B /O-d >file_list.txt
I am executing ftp command from Unix box and transferring get_list.bat file to windows server.
In my next ftp command I am trying to execute this test.bat file by entering this line:
get_list
or by... (9 Replies)
Hi,
I need to execute the following unix command through my java code -
zip -e
When i execute this command from the command prompt, i am prompted for a password in the following manner -
Enter password:
Verify password:
Is it possible to provide the password inthe first command itself... (5 Replies)
Hi need urgent help , for creating unix script .
To collect system name,This is command i want to execute n (integer) no. of times for for a differnt IP addresses .IP is variable in every execution.
Other string & collecter name is constant .
snmpGet %IP% sysName.0 -c <string> -S <datacollecter... (2 Replies)
Hi,
I am trying tio invoke unix variable in a sed command like below, but it seems to be failing..
a=1
sed -n '$a,$p' file.txt ### Failing
but
a=1
sed -n '1,$p' files.txt ### Works fine
Please help me to fix this... Thanks in advance (2 Replies)
Hi:
I have a touble with executing a variable that stores a unix command string.
The following would be excuted fine:
command='ls -l'
`echo $command`
However, the following gives me an error:
command='(uuencode file1 file1; uuencode file2 file2) | mailx email_id'
`echo... (1 Reply)
Hi All,
I am trying to execute a set of sql statements in sql server 2008 using the sqlcmd command in unix and passing the query in the "input" parameter. It is giving me an error "incorrect syntax near 2014". The below statement is giving an error :
declare date_val datetime,
... (4 Replies)
Hello,
Our applications are deployed in SunOS 5.10 servers. All the team members use a same username/pwd to login to the box. Very often we face issue were we could see that weblogic server instance are KILLED and we are not able to trace who executed kill command. All team members use PUTTY to... (2 Replies)
Discussion started by: santtarius
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)