I hope you are all doing well. I have a question regarding the PHP `connect_errno()` function. I've been working on a project that involves connecting to a database and I came across this function, but I'm not quite sure how it works.
To provide a bit of context, I am relatively new to PHP and web development in general. I have been learning the basics of PHP and MySQL, and I have managed to establish a connection to my database successfully using the `mysqli_connect()` function. However, I want to handle any potential errors or issues that may arise during the connection process.
While going through the documentation, I stumbled upon the `connect_errno()` function. From what I understand, it is used to retrieve the error code associated with the last connect error. Although I grasp the general concept, I'm not entirely sure how to implement it in my code or how it can be useful in practice.
I would greatly appreciate it if someone could clarify the usage of the `connect_errno()` function and perhaps provide an example of how it can be used to handle connect errors effectively. What is the value returned by this function? Can it be used to identify specific errors?
Thank you in advance for your help and advice.