Swoole\Buffer::substr
(PECL swoole >= 1.9.0)
Swoole\Buffer::substr — Read data from the memory buffer based on offset and length. Or remove data from the memory buffer.
说明
public Swoole\Buffer::substr(int
$offset, int $length = ?, bool $remove = ?): stringIf $remove is set to be true and $offset is set to be 0, the data will be removed from the buffer. The memory for storing the data will be released when the buffer object is deconstructed.
参数
-
offset -
The offset.
-
length -
The length.
-
remove -
Whether to remove the data from the memory buffer.
返回值
The data or string readed from the memory buffer.
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