headers already sent

Headers Already Sent Error Headers already sent error is a common issue encountered when programming with PHP. It occurs when your program sends the output to the browser before sending the HTTP headers, making it impossible to add headers or redirect.
This error often occurs when HTML output is added to a file before the actual code. For example, HTML content such as “Warning” or “Thank you for your order” appears before the code. It can also occur when a space character is included before the opening Headers already sent error can be difficult to find and can result in a lot of frustration. To Fix this error, you need to check the source of the error. This means going through each file and checking for any unnecessary output before the working code. It is recommended to use a text editor to check the code because some editors can generate output themselves.
Once you identify the source of the error, you can fix it by deleting or moving the output before the actual code or by adding ob_start() before the beginning of the code. This is a PHP command that allows you to flush buffer contents before the actual output to prevent headers from being sent prematurely.
Headers already sent error is a common issue among PHP programmers. If you follow the aforementioned steps, you should be able to identify and fix the problem easily. Remember to always check your code to ensure that everything is working as expected.