Do you trust your code? 😡😱

Question

We all faced that problem where you have errors and stuff.
But here I'm talking about safety.
I decided to try php for web after c#
When it comes to safety
"talking about databases"
I don't seems to get it well with php.
If you're an advanced php developer please give me a source where I can learn to make my website safe with php
......
And back to the question
Do you trust your code

Answer 1

My struggle is real. Any help is really appreciated