01-29-2015
Hi Ravinder
Thanks a lot! But I think it didn't work
For 5 files,the output looks like this-
PHP Code:
Ow 1230
Ow01230
Hw11231
Hw11231
Hw21232
Hw21232
Ow31233
Ow31233
Hw41234
Hw41234
Hw51235
Hw51235
Ow61236
Ow61236
Hw71237
Hw71237
Hw81238
Hw81238
Ow91239
Ow91239
Ow101239
Hw111239
Hw121239
Ow131239
Hw141239
Hw151239
Ow161239
Hw171239
Hw181239
Ow191239
Ow201239
Hw211239
Hw221239
Ow231239
Hw241239
Hw251239
Ow261239
Hw271239
Hw281239
Ow291239
Ow301239
Hw311239
Hw321239
Ow331239
Hw341239
Hw351239
Ow361239
Hw371239
Hw381239
Ow391239
Ow401239
Hw411239
Hw421239
Ow431239
Hw441239
Hw451239
Ow461239
Hw471239
Hw481239
Ow491239
One thing is the output is wrongly numbered but also it's disordered. In my file I had always
PHP Code:
Ow
Hw
Hw
Ow
Hw
Hw
...
but in the output I have 2 consecutive Ow's. I have to admit I don't understand your code. Could you kindly explain it to me?
Thanks a lot! Really appreciate it!
Saleheen
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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)