How can error handling be improved in the provided PHP script to provide more informative error messages to users?

The issue with the current error handling in the provided PHP script is that it only displays generic error messages, which may not be helpful for users to understand what went wrong. To provide more informative error messages, we can use try-catch blocks to catch specific exceptions and then display custom error messages based on the type of exception thrown. 

try {
    // Code that may throw an exception
    $result = some_function_that_may_throw_exception();

    // Process the result
    echo $result;
} catch (Exception $e) {
    // Display custom error message based on the type of exception
    if ($e instanceof InvalidArgumentException) {
        echo "Invalid argument provided.";
    } elseif ($e instanceof OutOfBoundsException) {
        echo "Out of bounds error occurred.";
    } else {
        echo "An error occurred. Please try again later.";
    }
}

Keywords

try-catch exception handling error reporting custom error messages error codes

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