Re: 2 off in array count and index
jbl wrote: I am reading a directory and creating an array of .png file names. I know for a fact that there are 1025 png files in the folder With $count = @files I get 1027 With $last = $#files I get 1026 $files [0] = . $files[1] = .. . is the current directory, .. is the parent directory. These are always inserted by the filesystem in any directory for navigation purposes. These are (in principle) dynamically generated abbreviations for directory names. Simply put .. is needed when you need to go up one level higher in the file hierachie without parsing the current path, like cd .. . is mostly needed on the command line, when you want to execute a program from the current directory if its not in the search path, like ./myapp. You might want to take a look at http://www.washington.edu/computing/unix/startdoc/directories.html LG Rene -- To unsubscribe, e-mail: beginners-cgi-unsubscr...@perl.org For additional commands, e-mail: beginners-cgi-h...@perl.org http://learn.perl.org/
Re: ERROR: malformed header
Raheel Hassan wrote: HI, I have an error in opening one of my perl script, could any one tell me where i look for resolving this problem. This error i looked in the apache error logs. Thanks in advance. * malformed header from script. Bad header=\tPUBLIC -//W3C//DTD XHTML 1.0: dashboard.pl, referer: http://localhost/index.pl*; Hard to say exactly without the actual code. Looks like you're printing something in the wrong order (maybe a warning). Can you give us the relevant code snippet? LG Rene -- To unsubscribe, e-mail: beginners-cgi-unsubscr...@perl.org For additional commands, e-mail: beginners-cgi-h...@perl.org http://learn.perl.org/
Re: Saving param after new recall of a cgi script
Marek wrote: Hi! How do I save the parameters from the first input? I tried everything, but there is nothing kept in my array. Do I have to save these parameters into an external file? You could also use Storable Base64 to encode your data structure into a Base64 string. Put this string into a hidden text field. When the second form is submitted, you can decode your original data structure from that hidden field. That way, you don't have to store ANYTHING on your server until the user hits the final SUBMIT. Something like this could do the trick: http://search.cpan.org/~cavac/Maplat-0.9/lib/Maplat/Helpers/DBSerialize.pm I originally wrote it to store perl data structures into a database text field, should work in a hidden HTML form, too. Something like this: input type=hidden name=foo value=YourEncodedString LG Rene -- To unsubscribe, e-mail: beginners-cgi-unsubscr...@perl.org For additional commands, e-mail: beginners-cgi-h...@perl.org http://learn.perl.org/
Re: Loading results (via ajax) from a CGI
bu...@alejandro.ceballos.info wrote: I have a CGI (made with cgi.pm) that receive a parameters, check against a DB and returns a text with not found or OK found message. Pretty simple. In other site, i have an ajax routine that sends the parameters (via get) and is expected to capture the resulting page, but is not working. If I try with a static page, there is not problem, only when calling that CGI. The may be a problem with your headers. What i mean is, is the browser (wrongly) caching the page you request? Try setting the correct headers. Also, you might add an ever-changing dummy value to your request to trick the browser into thinking this is a new, non-cached page. You have var myurl = 'http://server/script.cgi?value='+int_value; change to: var myurl = 'http://server/script.cgi?value='+int_value + 'dummyvalue=' + now.getTime(); LG Rene -- To unsubscribe, e-mail: beginners-cgi-unsubscr...@perl.org For additional commands, e-mail: beginners-cgi-h...@perl.org http://learn.perl.org/
Re: cgi and perl database interaction
Hi!
Now, the thing is that the PHP scripts also connect to the database and,
presumably, uphold the connection over the duration of the session so as
not to disconnect and reconnect continually when the user browses the
website.
My question is - is it possible to do the same thing with those CGI
scripts?
CGI scripts are basically scripts executed at the commandline with a few
parameters and environment variables set (each call normally starts a new
instance).
You could look into the various web frameworks if and how they solved the
problem. If you can't install anything on the server besides CGI scripts,
you're probably out of luck, though.
If you CAN install additional software on the server, mod_perl could be the way
to go. Or run your own small perl-based server for those pages on another port,
HTTP::Server::Simple::CGI (or my Maplat-Framework) might fit your profile - you
may even run them as backend only on localhost and use a PHP script as simple
proxy 8-)
It really depends on what you're planing in the long run.
LG
Rene
--
#!/usr/bin/perl #99BoB (C)2004 cavac:prg count drink vessel place act1 act2
@a...@argv;$c=$a[0]||99;$b= .($a[2]||bottles). of .($a[1]||beer);$w= .
($a[3]||on the wall).,;do{print$c$b$w\n$c$b,\n.($a[4]||take one down).
, .($a[5]||pass it around).,\n.--$c.$b$w\n\n;}while($c);printEND!\n;
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