Search results for: "max-age"

What potential pitfalls should be considered when using MAX() in a MySQL query in PHP?

When using MAX() in a MySQL query in PHP, one potential pitfall to consider is that if there are no rows returned by the query, MAX() will return NULL...

What role does session handling play in restricting access to certain pages based on user age in PHP?

Session handling plays a crucial role in restricting access to certain pages based on user age in PHP by storing the user's age information in a sessi...

What are the potential pitfalls of using a user's ID number for age verification in PHP?

Using a user's ID number for age verification in PHP can be problematic because it may not accurately reflect their actual age. Additionally, it can p...

How can PHP be used to convert a birthdate to an age for search functionality?

To convert a birthdate to an age for search functionality in PHP, you can use the DateTime class to calculate the difference between the birthdate and...

What are the advantages and disadvantages of manually calculating and setting max-width and max-height values for images in PHP compared to using CSS media queries?

When manually calculating and setting max-width and max-height values for images in PHP, the advantage is that you have more control over the image si...