Returns a bucket object from the brigade to operate on

# stream_bucket_make_writeable

(PHP 5, PHP 7, PHP 8)

stream_bucket_make_writeable — Returns a bucket object from the brigade to operate on

### 说明

function stream_bucket_make_writeable(resource `$brigade`): ?StreamBucket

This 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().

### 参数

`brigade`

  The brigade to return a bucket object from.

### 返回值

Returns a bucket object or `null`.

### 更新日志

版本 | 说明
--- | ---
8.4.0 | 此函数现在返回 StreamBucket 实例；之前返回 stdClass。

### 参见

- stream_bucket_append() - Append bucket to brigade
- stream_bucket_prepend() - Prepend bucket to brigade

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