HELP IN PHP ERRORS

AD74 — Wed, 20 Oct 2021 23:27:39 +0800

HELPPP! This is my SPM 2021 Sains Komputer "kerja khusus", it's simple php but for my level, I don't understand the error shown and someone pls help me the dateline is on November!!
1. soalan_semak.php -- this is coding where the PHP will check whether the answer is correct or not.
This is the page that shows error

and this is my coding:

2. papar_soalan.php -- it lists all the questions from a 'pentadbiran sistem's' view.
This is page that shows error

and this is the coding:

3. hapus_topik.php -- it deletes a topik from a "pentadbir sistem's' page. A topik will contain multiple questions that should be answered by his/her students.
This the page:

This is the coding:

Any pro or shifu here pls help me by pointing out the problems and how should I change it so that it works. I read some solution from Internet but i don't understand what are they talking about (especially those technically terms and names), as u know, I'm just a form 5 student, I just know PHP and HTML localhost that's it.
As for my teacher, she's really new to this and can't even help us anything other than 'copying' the coding, that's why I'm asking here.
Feel free to ask me to provide more information if the information that i provided is not enough... Thank you very much dear forumers

Which pre-u should i go

AD74 — Sun, 28 Mar 2021 11:30:51 +0800

So I'm a form 5 student taking up SPM 2021. Currently, I have no idea which pre-u should I go.
I know what I wanna do in future just the pre-u is kinda mixed up because from what I know, there r many exam boards n programs.
I'm a guy who loves understanding concept, majority I can understand once my teacher teach it and I do my hw.
But ofc there r some I will need time, and if this happens, it may take very long :/
I just wish a pre-u that doesn't restrict my choice in future...
Oh yah I also don't like one time exam like my SPM coz I always do better in trials don't know why.
Finance won't be a big problem just that my parents cannot afford me to go countries like UK US Aus for a full degree.
I wish to go SG somehow
Can forum give me an advice n insight of these pre-u courses, like STPM, A lvl, AUSMAT or other stuff?
I wish I can get this done then I will focus my SPM smile.gif thanks in advance

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HELP IN PHP ERRORS

Which pre-u should i go