Hello.

So the iterator in a foreach loop is localised; if the variable is previously declared with my "that one instead of the global one is used, but it's still localized to the loop" (according to the Camel book).

So I have the following code:
my $value = "four"; my @array = ( "one", "two", "three" ); foreach $value (@array) { print "foreach value: $value\t"; function(); } sub function { print "function value: $value\n"; }
Why is $value = "four" when my subroutine is called? If it's localised by the foreach loop, shouldn't it get set to the value it is inside the foreach loop? (As is what happens if it's my declaration)

It seems that if both a global and local version of $value exists, then the global one is chosen.

What's happening?

In reply to foreach localizing variables by AndyJ

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.