Php/docs/streamwrapper.stream-write

• PHP Manual
• streamWrapper
• Write to stream

streamWrapper::stream_write

(PHP 4 >= 4.3.2, PHP 5, PHP 7)

streamWrapper::stream_write — Write to stream

说明

public streamWrapper::stream_write ( string $data ) : int

This method is called in response to fwrite().

Note:

Remember to update the current position of the stream by number of bytes that were successfully written.

参数

data

Should be stored into the underlying stream.

Note:

If there is not enough room in the underlying stream, store as much as possible.

返回值

Should return the number of bytes that were successfully stored, or 0 if none could be stored.

错误／异常

调用此方法失败将给出 E_WARNING（未实现）。

Note:

If the return value is greater the length of data, E_WARNING will be emitted and the return value will truncated to its length.

参见

• fwrite() - 写入文件（可安全用于二进制文件）