what do u mean by current block?

A block is a set of statements that are contained between a pair of braces. Blocks can be associated with subroutines, loops, conditionals and a number of other Perl constructs. There is also an implicit block around all of the code in a file.

our (like my) is lexically scoped, this means that its effects are only felt until the end of the innermost enclosing block.

I understand "my" is used for local variable.
so is "our" a global variable??

Pretty much. It exposes package variables within a given block. The differences between package and lexical variables and the subtle differences between my, local and our can get a little complex. I recommend you read the section on "Scoped Variable Declarations" that starts on p130 of the 3rd edition of the Camel.

--
<http://www.dave.org.uk>

"The first rule of Perl club is you don't talk about Perl club."


In reply to Re: Re: Re: about arrays... by davorg
in thread about arrays... by ArcaneUniverse

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.