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PHP マニュアル

EventBuffer::substr

Substracts a portion of the buffer data

説明

public string EventBuffer::substr( int $start , int $length = ?)

Substracts up to length bytes of the buffer data beginning at start position.

パラメータ

start: The start position of data to be substracted.
length: Maximum number of bytes to substract.

戻り値

Returns the data substracted as a string on success, or false on failure.

参考

EventBuffer::read