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Written by dseguy on 2024-12-26 at 15:12

A #PHP global constant redefinition is a simple warning.

A #PHP class constant redefinition is a full Fatal Error.

I am so used to the Fatal error, that I expected the global constant to behave the same. Shouldn't they?

[#]phptip #phptrick

https://php-tips.readthedocs.io/en/latest/tips/constant_redefinition.html

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Written by Tobias van Beek on 2024-12-26 at 16:30

@dseguy I suspect it can be problematic if packages define global constance. (I don't know if there are packages who are doing that)

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Toot

Written by dseguy on 2024-12-26 at 17:34

@tvbeek A quick search across 3100+ OSS source codes shows 902 (29%) of them using define(): even more of them use const, although for class constant too.

Then, 1370 uses defined() (44%): again, class and global, so actual might be lower.

So, that is roughly one out of 3 of us.

If it is not you, or me, who can it be? names! names! 😂

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