upgraded php - now endless undefined variable warnings

unwashed potato! · 22 Jan 2019 at 00:03

just upgraded my desktop and installed xampp which i guess comes with a later version of php than what i had previously used.

unfortunately i'm now shown with an endless list of undefined variable warnings.

everything works fine, however it's too much to ignore when trying to work on the site.

i've reduced what warnings i see, but i'm also seeing other issues like " A non-numeric value encountered" when trying to multiply a variable that's not been defined as anything yet, plus i'd prefer to see warnings as much as possible.

so i'm wondering what's best to do now?

do i really need to go through every page and define every single freaking variable before it's used?

there are situations where i have something like the following:

if x==1 then y = 2,

if a==1 then b = 3

then i have b+y+z = and the total displayed, but as sometimes x or a doesn't equal 1 then y or b wont be set as anything. this is of course causing a warning now but still works with no issues

PiKe · 22 Jan 2019 at 00:28

It's to do with the error level set in the php.ini I believe.

unwashed potato! · 22 Jan 2019 at 01:18

Yes unfortunately though my fear is that if I reduce the error reporting, I'll miss other errors down the line unrelated to these. Is there a fix for just undefined variables do you know?

Deleted member 77746 · 22 Jan 2019 at 08:27

Just change the php version used them in the control panel. The software you are using that’s coded might not be compatible with the version of php you are using.

andshrew · 23 Jan 2019 at 09:45

Perhaps it is time to initialise your variables.

antijoke · 23 Jan 2019 at 13:29

I assume you went to PHP 7.2 from PHP 5.X.

7 is a lot more vocal about it's errors and warnings than previous versions, either spend some time Googling how to fix them or silence it all.

Seems like yes, it is time to sort out that code, in your example use an if statement.

Beansprout · 23 Jan 2019 at 14:09

Sounds like the code could be more efficient if you have more variables than the time it took to write the post questioning if the error message really means what the error message says

Randomface74 · 23 Jan 2019 at 14:18

Either fix your code or change the error level, those are your options.