Search results for: "headers_sent"

Welche Rolle spielt die Funktion headers_sent() bei der Verwendung von session_start() in PHP und wie kann sie dazu beitragen, potenzielle Probleme zu identifizieren?

Die Funktion headers_sent() wird verwendet, um zu überprüfen, ob Header bereits an den Browser gesendet wurden. Dies ist wichtig, wenn session_start()...

What role does the headers_sent() function play in setting the Content-Type header for file downloads in PHP?

The headers_sent() function in PHP is used to check if any headers have already been sent to the browser. When setting the Content-Type header for fil...

How can headers_list() and headers_sent() be used to debug PHP code?

To debug PHP code related to headers, you can use the `headers_list()` function to retrieve a list of headers that have been sent, and the `headers_se...

Is the (!headers_sent()) check necessary for sending headers in PHP, and what potential issues could arise from using it?

The `(!headers_sent())` check is not necessary for sending headers in PHP, as headers can be sent without this check. However, using this check can he...

How can the presence of UTF-8 with BOM encoding in a PHP script file potentially cause issues with the headers_sent() function and header modification?

When a PHP script file is encoded in UTF-8 with BOM (Byte Order Mark), it can cause issues with the `headers_sent()` function and header modification...