Search results for: "manually changed"

How can PHP be used to compare and update only the changed data in a database table?

When updating data in a database table, it is important to compare the new data with the existing data to determine what has changed. One way to achie...

How can one efficiently identify missing, new, and changed entries when comparing two CSV files in PHP?

When comparing two CSV files in PHP, one efficient way to identify missing, new, and changed entries is to read both files into arrays, compare the ar...

How has PHP5 changed the usage of $this in classes compared to older versions?

In PHP5, the usage of $this in classes has changed to be more consistent and predictable compared to older versions. Now, $this is always required to...

Why should the require statement be changed to require_once in this context?

The issue with using the require statement in this context is that it may result in the same file being included multiple times, leading to redeclarat...

How can you prevent session variables from being changed after they have been set in PHP?

To prevent session variables from being changed after they have been set in PHP, you can use the session_regenerate_id() function to regenerate the se...