streamWrapper::stream_write()

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

Write to stream

说明

publicstreamWrapper::stream_write(string $data): int

This method is called in response tofwrite().

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_WARNINGwill 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）