php - How can I trigger errors on webpages so I can take a screen capture for visual display?

I want to be able to "make" browser display errors, like forbidden, 503 etc...

Is there some kind of sandbox where I could do this?

I need the errors to be rendered in google chrome, then take a screen capture of browser window.

Something like image under it, but force the browser to display something like this, maybe in Chrome dev tools could be done?

Solution:

You can do this with try-catch condition and set_exception_handler function like this:

<?php

class MyCustomException extends Exception { }

function exception_handler($exception) {
   echo "Uncaught exception: " , $exception->getMessage(), "\n";
}

set_exception_handler('exception_handler');

try {
   throw new Exception('Uncaught Exception');
} catch (MyCustomException $e) {
   echo "Your custom exception caught ";
   echo $e->getMessage();
} finally {
   echo "I'm always here";
}

print "Not executed";

For more information you may visit site https://netgen.io/blog/modern-error-handling-in-php

Solution:

You can simply use try and catch, you can check function inside try and throw error to catch.

For example, I need to run MySQL if is there any error then report it.

So here is function for it:

try {
    if(!mysqli_query($conn,$query)){
        throw new Exception(you can put query error)
    }
} catch(Exception $e) {
    print_r($e)
}

The $e inside catch will give you error.