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>stream_set_blocking</H1
><DIV
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><A
NAME="AEN223544"
></A
><P
> (PHP 4 >= 4.3.0, PHP 5)</P
>stream_set_blocking -- Set blocking/non-blocking mode on a stream</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN223547"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>stream_set_blocking</B
> ( resource stream, int mode )<BR
></BR
><P
> If <CODE
CLASS="parameter"
>mode</CODE
> is 0, the given stream
will be switched to non-blocking mode, and if 1, it
will be switched to blocking mode. This affects calls like
<A
HREF="function.fgets.html"
><B
CLASS="function"
>fgets()</B
></A
> and <A
HREF="function.fread.html"
><B
CLASS="function"
>fread()</B
></A
>
that read from the stream. In non-blocking mode an
<A
HREF="function.fgets.html"
><B
CLASS="function"
>fgets()</B
></A
> call will always return right away
while in blocking mode it will wait for data to become available
on the stream.
</P
><P
> 如果成功则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
</P
><P
> This function was previously called as
<B
CLASS="function"
>set_socket_blocking()</B
> and later
<A
HREF="function.socket-set-blocking.html"
><B
CLASS="function"
>socket_set_blocking()</B
></A
> but this usage is deprecated.
</P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
Prior to PHP 4.3, this function only worked on socket based streams.
Since PHP 4.3, this function works for any stream that supports
non-blocking mode (currently, regular files and socket streams).
</P
></BLOCKQUOTE
></DIV
><P
> See also
<A
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><B
CLASS="function"
>stream_select()</B
></A
>.
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