Search results for: "availability check"

How can the issue of "Cannot add element page number 2 when only 0 such elements exist" be addressed in PHP when dealing with XML navigation structures?

Issue: The error "Cannot add element page number 2 when only 0 such elements exist" occurs when trying to navigate to a page number that does not exis...

What is the recommended approach for preventing duplicate values and ensuring that only unique selections are displayed in a multiple Pull-Down-Menü in PHP?

To prevent duplicate values and ensure only unique selections are displayed in a multiple Pull-Down-Menu in PHP, you can use an array to store the uni...

What are some common pitfalls when using mysqli_query in PHP for database operations?

One common pitfall when using mysqli_query in PHP for database operations is not properly handling errors. It's important to check the return value of...

Are there any best practices for using variables to call class methods in PHP?

When using variables to call class methods in PHP, it is important to ensure that the variable contains the correct method name and that the method ac...

In PHP, what is the significance of using if-else statements to handle errors or missing data in API responses?

When working with API responses in PHP, it's common to encounter errors or missing data. Using if-else statements allows you to check for these issues...