Search results for: "output line"

Why is it important to ensure that there is no content, including whitespace, before setting a cookie in PHP?

It is important to ensure that there is no content, including whitespace, before setting a cookie in PHP because any output sent to the browser before...

How does the structure of the PHP code provided in the forum thread contribute to the occurrence of the error?

The issue in the PHP code provided in the forum thread is that the closing PHP tag "?>" is followed by whitespace or new lines after it. This can caus...

In what situations is it recommended to use printf() instead of concatenating strings in PHP code?

When you need to output formatted text in PHP, it is recommended to use printf() instead of concatenating strings for better readability and maintaina...

What resources or tools can be used to troubleshoot header-related issues in PHP?

When encountering header-related issues in PHP, it is important to check for any output sent to the browser before calling functions like header(). Th...

What does the warning "Cannot modify header information" mean in PHP and how can it be resolved?

The warning "Cannot modify header information" in PHP occurs when there is an attempt to modify header information after it has already been sent to t...