Re^4: Variable will not stay shared in a sporadically crashing CGI

This is getting a bit off-topic, but some globals are ok. Novice programmers don't always know when they're safe and when they aren't, and they're often too timid to change a global to a local when it really needs to be done. That's why we advise people not to use globals at all. But CGI is probably safe as a global, because there's no reason to have two of them in your program.

Comment on Re^4: Variable will not stay shared in a sporadically crashing CGI

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Re^5: Variable will not stay shared in a sporadically crashing CGI by haukex (Archbishop) on Oct 02, 2017 at 13:53 UTC
But CGI is probably safe as a global, because there's no reason to have two of them in your program. I absolutely agree with the general comment about some globals being ok if the coder knows what they are doing - but we are talking about mod_perl here, better to play it safe, and lexicals are arguably safer* in this case. * Update: "safer" not in the sense of security, but in less chances for things to go wrong.	[reply]

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Re^5: Variable will not stay shared in a sporadically crashing CGI
by haukex (Archbishop) on Oct 02, 2017 at 13:53 UTC

But CGI is probably safe as a global, because there's no reason to have two of them in your program.

I absolutely agree with the general comment about some globals being ok if the coder knows what they are doing - but we are talking about mod_perl here, better to play it safe, and lexicals are arguably safer* in this case.

* Update: "safer" not in the sense of security, but in less chances for things to go wrong.

[reply]