stream_bucket_prepend

Function name: stream_bucket_prepend()

Applicable version: PHP 4 >= 4.3.0, PHP 5, PHP 7

Function Description: The stream_bucket_prepend() function inserts a new bucket before the stream's buffer.

Usage: stream_bucket_prepend(resource $brigade, resource $bucket): bool

parameter:

• $brigade: Required. A bucket brigade resource.
• $bucket: Required. The bucket resource to be inserted.

Return value: Return true if the bucket is successfully inserted, otherwise false.

Example:

 // 创建一个新的bucket $bucket = stream_bucket_new($stream, $data); // 创建一个bucket brigade $brigade = stream_bucket_make_writeable($stream); // 在brigade 的开头插入bucket stream_bucket_prepend($brigade, $bucket); // 将brigade 中的所有bucket 写入流stream_bucket_list($brigade, $stream);

In the example above, we first create a new bucket using the stream_bucket_new() function, and then create a bucket brigade using the stream_bucket_make_writeable() function. Next, use the stream_bucket_prepend() function to insert the newly created bucket into the beginning of brigade. Finally, use the stream_bucket_list() function to write all buckets in brigade to the stream.

Please note that this is just a simple example and may be more complex to perform in actual use depending on the specific needs.