Cleaning form submited strings

Hi Friends,
I need a method for cleaning strings from all NON alphabetic and numeric characters that are submitted by a form

I have the following strings:
$data1 - $data2 and $data3
before writing these 3 strings to file, I want to eleminate all characters that are not a-z, A-Z and 0 to 9 and replace them with nothing, not even a blank.
Meaning if $data1 = "my tel # 025/123.895.548"
should become $data1 = "my tel 025123895548"

Then I need the same as above but also eleminating blank spaces
such as:
$data5 = "map &125 #abc <small"
becomes
$data5 = "map25abcsmall"

And to make things even worse I need a very difficult one
That eleminates everything that is not a number or a decimal point.
$data6 = "Temperature for city $manoi <b>40.08</b> celcius"
becomes
$data6 = "40.08"

Best Regards,
Sanuk

$data1 =~ s/[^ 0-9A-Za-z]//g;
$data2 =~ s/[^ 0-9A-Za-z]//g;
$data3 =~ s/[^ 0-9A-Za-z]//g;
$data5 =~ s/[^0-9A-Za-z]//g;
$data6 =~ s/[^0-9]//g;The last one will only do what you asked, that is, it will also change "2.5+3.7=6.2" into "2.53.76.2".

Hi,
Thanks alot Centaur.
I will try it out tomorrow and let you know if it works (for sure it will).
I am of to sleep now, it is here 2 AM in the morning.

Thanks Centaur and Regards,
Sanuk:thumbsup:

Hi friends,
Thanks, it works !!

But now I need just the opposite for a fill-in form.

====================
$minchar = '10';
$maxchar = '20';
if(length $FORM{'data8'} < $minchar || length $FORM{'data8'} > $maxchar) { &errormessage }
========================

1/How do I add to the above that the string may ONLY contain letters a-z and A-Z and/or numbers 0-9, nothing else.

2/completely same as above, but may also not contain any spaces.

Thanks and Regards,
Sanuk

Get the manual and read the perlre part. Understanding regular expressions is essential for text analysis.&hellip; || $FORM{'data8'} !~ /^[0-9A-Za-z]*$/ || &hellip;This subexpression evaluates to true if $FORM{'data8'} does not match (!~) the regular expression /^[0-9A-Za-z]*$/, which means: ^ &mdash; start of text,
[0-9A-Za-z] &mdash; digit or letter,
* &mdash; repeated 0 or more times,
$ &mdash; end of text.