RE: [PHP] Help with Logical 'OR'

hope that explains it a bit furthur Martin -Original Message- From: jv [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 29, 2002 2:26 PM To: [EMAIL PROTECTED] Subject: Re: [PHP] Help with Logical 'OR' Thanks Matt, Jeff, and Sam (BTW Sam, for some reason your post didn

Re: [PHP] Help with Logical 'OR'

Thanks Matt, Jeff, and Sam (BTW Sam, for some reason your post didn't come to me on the list through regular email- I found it when I did a search in the archives at php.net. I 'm pretty sureI didn't delete it. I mention this because I'm sure the list server hiccups sometimes and I'd hate to offen

Re: [PHP] Help with Logical 'OR'

For sake of efficiency, many languages will do what is called "Short Circuit" in a situation like this. Let's look at a simple truth table for an OR using two conditions (T=true, F=false): T || T = T T || F = T F || T = T F || F = F In the first two cases, it is only necessary to evaluate the

Re: [PHP] Help with Logical 'OR'

With a logical OR statement, many languages will evaluate the first statement, and if the first condition is true, then it will not evaluate the second condition, because TRUE OR (anything) is TRUE. This saves the program from executing any more code than it has to. If the first condition is