Search results for: "ob_clean"

In what situations should ob_clean() be used in conjunction with readfile() to prevent unexpected output in PHP scripts?

When using readfile() to output the contents of a file in PHP, it is important to use ob_clean() before calling readfile() to prevent any unexpected o...

What are the security implications of using ob_start() or ob_clean() to manage error messages in PHP file uploads?

Using ob_start() or ob_clean() to manage error messages in PHP file uploads can potentially lead to security vulnerabilities such as information discl...

How can PHP code within included files affect the output when using ob_start() and ob_get_contents()?

When using ob_start() and ob_get_contents() to capture output, any PHP code within included files will be executed and affect the final output. To pre...

How can one ensure that there is no output before offering PHP files for download?

To ensure that there is no output before offering PHP files for download, you can use the ob_clean() function to clean the output buffer before sendin...

How can the presence of a blank line at the beginning of a downloaded file be addressed in PHP programming?

When downloading files in PHP, sometimes an extra blank line at the beginning of the file can cause issues, especially when dealing with headers or co...