my $file = "file";
my $temp = "temp";
foreach (1..5){
open $file, '>', "$temp$_";
print $file "THIS IS DATA";
}
Whatever you may think of the use of $_ this code doesn't compile under strictures because $file is not undefined. Quoth the open docs (emphasis added):
If FILEHANDLE is an undefined scalar variable (or array or hash
element), a new filehandle is autovivified, meaning that the
variable is assigned a reference to a newly allocated anonymous
filehandle. Otherwise if FILEHANDLE is an expression, its value
is the real filehandle. (This is considered a symbolic
reference, so "use strict "refs"" should *not* be in effect.)
c:\@Work\Perl\monks\james28909>perl -wMstrict -e
"my $file = 'file';
my $temp = 'temp';
;;
foreach (1..5){
open $file, '>', qq{$temp$_};
print $file 'THIS IS DATA';
}
"
Can't use string ("file") as a symbol ref while "strict refs" in use a
+t -e line 1.
(Talk about rearranging the deck chairs on the Titanic! :)
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