: At 09:48 AM 6/30/05 -0500, Joe Discenza wrote:
: >Except
if $var is, say, '0.00'. Then $var + 0 is '0', and won't eq $var.
:
: 0.00
is not a valid internal representation of a number. That can only
:
exist as a string. Same goes for "1e7". That is a print formated
number,
: not a valid internal number. $var = 1e7 and print $var ->
10000000. $var =
: 0.00 and print $var -> 0. If u want to include
"numberish" strings then u
: need some eval's to digest the various number
formats. ... if eval $var eq
: $var + 0;
IIRC (no longer have the message), the OP had *string* data to check for numerics. Your method would miss, say, a CSV full of prices if they ended ".00" or ".50".
I bet you're right that "eval($var) eq $var + 0" works; have you benchmarked it against all the other (regex, e.g.) methods presented?
Joe
==============================================================
Joseph P. Discenza, Sr. Programmer/Analyst
mailto:[EMAIL PROTECTED]
Carleton Inc. http://www.carletoninc.com
574.243.6040 ext. 300 fax: 574.243.6060
Providing Financial Solutions and Compliance for over 30 Years
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