Search results for: "column existence check"

How can one verify the existence of a specific column in a MySQL table before querying it in PHP?

Before querying a specific column in a MySQL table in PHP, it is important to verify the existence of that column to avoid errors. One way to do this...

How can one ensure the existence of a specific column in a MySQL table when querying data in PHP?

When querying data from a MySQL table in PHP, it is important to ensure that the desired column exists in the table to avoid errors. One way to do thi...

What are some potential pitfalls when using is_dir() to check for file existence in PHP?

Using is_dir() to check for file existence in PHP can be misleading because it specifically checks for directories, not files. To accurately check for...

Are there any potential pitfalls in using file_exists() to check for folder existence in PHP?

Using file_exists() to check for folder existence in PHP may lead to potential pitfalls because it can return true for both files and folders. To accu...

What are potential pitfalls when using file_get_contents to check for file existence in PHP?

When using file_get_contents to check for file existence in PHP, a potential pitfall is that it will return false not only if the file does not exist,...