I'm reading a table of data from a file using the following: 
while(<>) {
  chomp;
  my (@stuff) = split(",");
  push(@lines, \@stuff);
}

$size=@lines;

# just printing the 4th element in each row.
for($i=0; $i<$size; $i++) {
  print("item: $lines[$i]->[3]\n");
}

[download]
Now I noticed that when I use "my", it seems to read the table and print the 4th element for each row properly.
But when i don't use "my", it seems to read all the rows but only print the 4th element for the last row $size number of times.
Can anyone explain to me why this is happening?
Thanks!!!

In reply to question about the function "my" by spelee

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.