Posted by NC on 12/18/05 22:26

Curtis wrote:
>
> One surprise is PHP's apparent tolerance of referencing
> array elements that don't exist. Object Pascal would burp
> in a hurry.
>
> Say I go
>
> $parts = explode("|", "x | y | z");
>
> PHP doesn't seem to mind if I tell it
>
> $text = $parts[3].$parts[4];

First of all, in a situation like this, PHP would issue a warning,
unless error reporting is turned off. Second, nothing prevents you
from checking whether a particular variable exists using isset() or
array_key_exists(). Third, if you reference a non-existent variable,
the result is predictable -- a NULL.

Cheers,
NC

[Back to original message]