Search results for: "nested if-else"

What is the significance of the error message "Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given" in PHP and how can it be resolved?

The error message "Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given" in PHP indicates that the function mysqli_query(...

What are common pitfalls when using in_array with PHP arrays, especially when using $_GET variables?

Common pitfalls when using in_array with PHP arrays, especially when using $_GET variables, include not properly sanitizing user input and not checkin...

In what scenarios would it be beneficial to avoid hardcoding specific strings and instead rely on configuration files or server variables when working with file paths in PHP?

When working with file paths in PHP, it is beneficial to avoid hardcoding specific strings because hardcoded paths can lead to errors if the file stru...

Are there any potential issues with using a loop to output values from an array in PHP?

One potential issue with using a loop to output values from an array in PHP is that if the array is empty, the loop will still run and potentially cau...

How can you prevent the ftp_put function from overwriting files on the server?

To prevent the ftp_put function from overwriting files on the server, you can check if the file already exists on the server before uploading it. If t...