perl [ -sTuU ] [ -hv ] [ -V[:configvar] ] [ -cw ] [ -d[:debugger] ] [ -D[number/list] ] [ -pna ] [ -Fpattern ] [ -l[octal] ] [ -0[octal] ] [ -Idir ] [ -m[-]module ] [ -M[-]'module.' ] [ -P ] [ -S ] [ -x[dir] ] [ -i[extension] ] [ -e 'command' ] [ - ] [ programfile ] [ argument ]

  A command like use strict is called a pragma. Pragmas are instructions to the Perl interpreter to do something special when it runs your program. use strict does two things that make it harder to write bad software: It makes you declare all your variables ("strict vars"), and it makes it harder for Perl to mistake your intentions when you are using subs ("strict subs").

  modules

  For writing exploits, testing products and apps, identifying new Web-based vulnerabilities, and creating complex regular-expression engines.

  IO::Socket

  Answer
These are the variables begin with "$", "@" or "%" in Perl.

  On the server side, the main difference between GET and POST is where the submitted is stored. The $_GET array stores data submitted by the GET method. The $_POST array stores data submitted by the POST method.
  On the browser side, the difference is that data submitted by the GET method will be displayed in the browser's address field. Data submitted by the POST method will not be displayed anywhere on the browser.
  GET method is mostly used for submitting a small amount and less sensitive data. POST method is mostly used for submitting a large amount or sensitive data.

  Rasmus Lerdorf for version changes go to http://php.net/ Marco Tabini is the founder and publisher of php|architect.

  We can use a simple JavaScript code linked to an event trigger of any form field. In the JavaScript code, we can call the document.form.submit() function to submit the form.