PHP Manual
streamWrapper
Truncate stream

streamWrapper::stream_truncate

(PHP 5 >= 5.4.0, PHP 7)

streamWrapper::stream_truncate — Truncate stream

说明

public streamWrapper::stream_truncate ( int $new_size ) : bool

Will respond to truncation, e.g., through ftruncate().

参数

new_size: The new size.

返回值

成功时返回 TRUE，或者在失败时返回 FALSE。

参见

ftruncate() - 将文件截断到给定的长度

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