the object $bucket which is returned also includes a third parameter, $bucket->bucket, which is a reference to the resource
(PHP 5, PHP 7, PHP 8)
stream_bucket_make_writeable — Returns a bucket object from the brigade to operate on
$brigade): ?objectThis function is called whenever there is the need to access and operate on the content contains in a brigade. It is typically called from php_user_filter::filter().
brigadeThe brigade to return a bucket object from.
Returns a bucket object with the properties listed below or null.
data bucket The current string in the bucket.
datalen bucket The length of the string in the bucket.