Regex to check its all digits 3

[serpento]

I'm only a beginner at using regular expressions, and would like to know how to use one to see if $variable contains only digits or not. I.e. I want a statement that returns false if $variable contains any character other than a digit.

Any help would be very much appreciated.

-Ed ;-)

________________________________
Destiny is not a matter of chance; it is a matter of choice.​

 

[Deleted]

if ($variable =~ /[^\d]/) {
# return false;
}
else {
# return true;
}

M. Brooks
X Concepts LLC

http://xconcepts.com

 

[duncdude]

\D is the regex character class for all characters except digits:-

if ($data =~ /\D/) {
print "FALSE - data other than numbers found\n";
}
else {
print "TRUE - only numbers found\n";
}

Duncan

 

[mikevh]

$variable =~ /^\d+$/;

 

[serpento]

Thank you all for your help, you have all solved my problem perfectly! Have a star each.

-Ed ;-)

________________________________
Destiny is not a matter of chance; it is a matter of choice.​