How can the use of header() function in PHP lead to permission access errors when redirecting to a URL?

When using the `header()` function in PHP to redirect to a URL, permission access errors can occur if the script does not have the necessary permissions to access the destination URL. This can happen if the server restricts access to certain URLs or if the user running the PHP script does not have permission to access the specified URL. To solve this issue, ensure that the PHP script has the appropriate permissions to access the destination URL or use a relative path instead of an absolute URL. 

// Example code snippet to redirect to a URL with proper permissions
$url = 'https://example.com/';
header('Location: ' . $url);
exit();

Keywords

header function PHP permission access errors redirecting URL

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