Search results for: "SUM function"

What is the best practice for incorporating a function in an existing PHP shop to allow for toggling visibility in the admin area?

To incorporate a function in an existing PHP shop to allow for toggling visibility in the admin area, you can create a new column in your database tab...

What are the advantages of using a custom function to concatenate array elements in PHP compared to using built-in functions like implode?

When concatenating array elements in PHP, using a custom function allows for more flexibility and customization compared to using built-in functions l...

Is it advisable to use a return statement in a setter function in PHP if the value is already stored within the object?

Using a return statement in a setter function in PHP is not advisable if the value is already stored within the object. The purpose of a setter functi...

How can the error message "A session had already been started - ignoring session_start()" impact the functionality of the "header Location" function in PHP?

When the error message "A session had already been started - ignoring session_start()" occurs, it means that a session has already been started before...

What steps can be taken to troubleshoot and debug issues with the PHP mail function, such as not receiving the expected sender information?

Issue: If you are not receiving the expected sender information when using the PHP mail function, it could be due to incorrect headers being set or a...