It replaces (a potentially null), part of the target string. That is not concatenation.

Replacing part of a string means concatenating the part that precedes the replacement with the replacement, and that with what follows the replacement.

Did I say you couldn't?

"why should you have to for something that could not possibly by "by accident""

Read again.

Done. Still don't see it. Not in the OP.

Ha! Do it!

Sorry, typo. I meant "It's not one of those cases where I can'tcan provide concrete ..."

rather than examine the up & downsides and then reach a conclusion.

Why do you bother commenting if you think I just make stuff up. You asked for our opinion, so I gave mine. I've already added five of my reasons to the post.

In reply to Re^5: Use of uninitialized value in substr by ikegami
in thread Use of uninitialized value in substr by BrowserUk

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