Thanks for this code...Can i "echo" this variable to see its content, just to debug for now...Since this is using the eval, is it echoed differently? a simple echo won't do. I get no errors, but no idea what is in the "selection" variable.
Thanks.
---------- Post updated at 02:05 PM ---------- Previous update was at 02:00 PM ----------
Thanks radoulov. Let's see if i can get this to work...
I have 3 columns in an excel sheet.
c1 c2 c3
EIP_ACCOUNT SMALL_TS_01 select A.* from acc;
All the above 3 col shoud be passed a variable in the unix code.
1.How to read an excel file
2.How to pass these data as variable to the unic script (1 Reply)
Hi all,
I have a variable with date as 20080831 . Now I want to increment it as 20080901 and so on.Is there any command for this. Please help me.
thanks
rameez (1 Reply)
Hi All,
Iam trying to increment a variable
Following is the code
#!/usr/bin/ksh
i=1;
i='expr $i+1';
echo $i;
Output:
expr $i+1
not able to understand why its happening in that way
i was expecting result as 2... if the above method is worng .. can you help how i can get... (3 Replies)
1. The problem statement, all variables and given/known data:
Variable is resetting to 0 after incrementing in while loop
My bit of scripting displays the current users logged in the machine.
Then it reads in a specific username and displays the processes for that user.
The portion that I... (3 Replies)
When I did,
echo $SHELL in cmd prompt of putty,
its displaying /bin/sh
And in my shell script.,
I hav started with.,
#!/bin/sh
and
i=1;
while ;
do
.
.
.
i=$; (9 Replies)
Hi,
I am using BASH. I have encountered a situation where the following is necessary (but I am not sure how to do it):
#Define multiple arrays, whose names only differ by a number:
ARRAY_1=(1 2 3)
ARRAY_2=(4 5 6)
ARRAY_3=(7 8 9)
#Define ARRAY_AMOUNT, the number of arrays. In this case... (1 Reply)
Hi,
want to increment a variable in a for loop like this:
for (( c=$total-1; c>=0; c-- ))
do
if ;
then
maximo=$valores
fi
done
But it gives the error:
No such file or directory
How can i do this only incrementing the c variable?
Thanks (8 Replies)
Hi All,
I was wondering how I can convert each line in an input file where fields are separated by variable width spaces into a CSV file. Below is the scenario what I am looking for.
My Input data in inputfile.txt
19 15657 15685 Sr2dReader 107.88 105.51... (4 Replies)
Hi
I have the below set of lines , i need to duplicate these lines 1000 times, also eevrytime when it is incremented , it should increment the one in Blue color.
130400030000010000200001
130400030000010000200002
140050030000010000200005A
eg:
130400030000010000200001... (5 Replies)
This is part of a larger script where I need to pass only 1 line of a file to the script, based on a variable and not a direct reference.
As part of a for loop :
# for((line=0;line<50;line++)); do
# awk ‘NR==$line' PhraseList.txt; done
... (5 Replies)
Discussion started by: Seth
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)