[RESOLVED] proper syntax question

[marcnyc]

Hello, I just wanted to ask if the following in an IF statement is correct:

$var == 'str1'||'str2'

I noticed that it works but I never saw it anywhere and I was just trying to shorten my syntax so I don't have to write:

$var == 'str1' || $var == 'str2'

[bradgrafelman]

marcnyc wrote:

I noticed that it works

Actually, no, it doesn't work in the sense that it means anything. This:

if ($var == 'str1'||'str2')

will always evaluate to true as long as 'str2' isn't an empty string (or a single zero). What that says is if $var equals 'str1', or if 'str2' and PHP treats any non-empty non-zero string as boolean true.

If you have more than two comparisons, you could shorten the syntax a bit by using [man]in_array/man like so:

if(in_array($var, array('var1', 'var2', 'var3', 'etc.')))

[marcnyc]

Thanks for setting me straight on this.

[bradgrafelman]

Glad I could help. Don't forget to mark this thread resolved (if it is) using the link on the Thread Tools menu.