Search results for: "header() function"

How can the "Cannot modify header information" error be resolved in PHP when using header() function?

The "Cannot modify header information" error in PHP occurs when there is output sent to the browser before calling the header() function to set HTTP h...

How can you prevent header injection attacks when using the header function in PHP?

Header injection attacks can be prevented by validating and sanitizing user input before using it in the header function. This can be done by checking...

What best practice should be followed when using the header() function in PHP to avoid header modification errors?

When using the `header()` function in PHP, it is important to avoid sending any output before calling this function. This is because headers must be s...

What are the best practices for using the header() function in PHP to avoid errors related to modifying header information?

When using the header() function in PHP to modify HTTP headers, it is important to ensure that no output has been sent to the browser before calling t...

What steps can be taken to prevent the "Header already sent" error when using the header function in PHP?

The "Header already sent" error occurs when the header function in PHP is called after output has already been sent to the browser. To prevent this er...