Re: include_once vs require_once

Did you look at the difference between include() and require()? Basically, as I understand it, require() and require_once() are replaced during parsing--before code execution. And include() and include_once() are replaced during code execution. Thus, a required file is always imported into the file whereas an included file is only imported if the include() statement is executed. The same is true for the _once() versions except that the statement evaluates to nothing if the file has already been imported by another statement. Cheers, Sterling Mike Cullerton wrote:

hey folks, i'm wondering about the difference between include_once and require_once. the manual says The require_once() statement replaces itself with the specified file The include_once() statement includes and evaluates the specified file so, what is the difference? it's almost like one is a copy/paste and the other is some kind of read. is there any different behavior we should expect in scripts using one method vs another. my first guess was that require_once wouldn't evaluate the file, but i can execute code from within a file using either method. thanks, mike -- mike cullerton