Page 1 of 1
Could somebody show me why this IF statement is failing
Posted: Wed Jun 27, 2007 5:49 am
by impulse()
Code: Select all
if (!empty(trim($row['product']))) {
Am I right to assume that I'd have to make a separate variable and assign 'trim($row['product'])' to it and then do an !empty statement on that variable?
Re: Could somebody show me why this IF statement is failing
Posted: Wed Jun 27, 2007 5:55 am
by volka
You might want to use
Code: Select all
if ( 0<strlen(trim($row['product'])) ) {
instead
Posted: Wed Jun 27, 2007 5:55 am
by Gente
empty() takes a variable as parameter and trim returns a string.
But I don't think you should assign new variable try following
or
Code: Select all
if (strlen(trim($row['product'])))
Posted: Wed Jun 27, 2007 5:59 am
by CoderGoblin
Empty()
Returns FALSE if var has a non-empty and non-zero value.
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)
var $var; (a variable declared, but without a value in a class)
So not just an empty string. This may be important if you are dealing with user responses where they may enter 0.