Trimming the end of a variable

How do you take a characters off the end of a varible or specify the size of a variable to be a certain size.

Hope this helps:
<BLOCKQUOTE><font size="1" face="Verdana,Arial,Helvetica">code:</font><HR><pre>
# our variable string
$var = "some_string";

# give the numerical length of the variable
$length_a = (length($var);

# set the substr value to hack off
# the last character.
$length_b = (length($var) - 1);

# this strips the last character off
# off the $var
$trimdown = substr($var,0,$length_b);

Now $trimdown is the $var with the last character removed.
[/code]

Cheers,

Mickalo

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Or chomp() could do the job

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<BLOCKQUOTE><font size="1" face="Verdana,Arial,Helvetica">quote:</font><HR>Originally posted by meeh82:
How do you take a characters off the end of a varible or specify the size of a variable to be a certain size.[/quote]

For example, you have a variable named $me that contains "iamveryspecial," and you want to trim it down to, let's say 7 characters. You would do this:
$me = substr $me, 0, 7; # $me is now "iamvery"

If you would like to remove, let's say, the last 5 characters, you would approach it like this:
$me = substr $me, 0, -5; # $me is now "iamverysp"

Hope this helps!