Hi monks, I am back with another homework assignment - BUT I have done it all but somehow cant figure out why an array is not processing correctly - I need to get user input as comma delimited text or digits (i.e. dogs, cats, 4, 8) and then iterate the array and divide the digts if any by 2 and then print the whole thing out...I have gone over this a ton of times and can't figure out why it wont divide the digits (if any) by 2...here is the piece of code I wrote 
print "Enter the Comma Separated Text...:";
$str = <STDIN>;
chomp($str);
#Remove the quotes
$str=~s/"//g;

# @arr now contains the individual values
@arr=split(",",$str);

for($i=0;$i<=$#arr;$i++){
  # if the array contains only digits
    if($arr[$i]=~/^d+$/){
    $arr[$i]=$arr[$i]/2;
    }
}

print "Values in the Array are as Follows\n";
#print that Array
foreach $val(@arr){
 print "$val\n";
}

[download]
the other portion of my problem is using using a regular expression on a user-input phone number - when I ask to print out the variable all I get is "+" instead of the whole phone number 
#Get the phone number and check to make sure that it contains only dig
+its and the length is 10

while($phone =~ /D/ || $len !=10){
 print "Please enter your 10 digit phone number:";
 $phone = <STDIN>;
 chomp($phone);
 #Find out the length of the string
 $len=($phone=~tr/[0-9]/[0-9]/);
}

#Using regular expressions, break down the phone number into first num
+ber the
#next three digits and then the next three digits and so on. Each digi
+ts will be
#stored in $1 $2 $3 and $4.

$phone=~/(d)(ddd)(ddd)(ddd)/;
$formattedphone="+".$1." ".$2." ".$3." ".$4;

[download]
now I know you frown on homework help but if you could just tease me with a hint or two in the right direction...am I totally off track on these or am I in the neighborhood...? once again thanks for the wisdom monks sierra

In reply to wisdom needed for string matching and array processing by sierrastar

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