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>php_stream_is</H1
><DIV
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><A
NAME="AEN102455"
></A
><P
> (no version information, might be only in CVS)</P
>php_stream_is -- Determines if a stream is of a particular type</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN102458"
></A
><H2
>Description</H2
>int <B
CLASS="methodname"
>php_stream_is</B
> ( php_stream * stream, int istype)<BR
></BR
><P
> <B
CLASS="function"
>php_stream_is()</B
> returns 1 if <TT
CLASS="parameter"
><I
>stream</I
></TT
> is of
the type specified by <TT
CLASS="parameter"
><I
>istype</I
></TT
>, or 0 otherwise.
<DIV
CLASS="table"
><A
NAME="AEN102473"
></A
><P
><B
>Table 43-1. Values for <TT
CLASS="parameter"
><I
>istype</I
></TT
></B
></P
><TABLE
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><THEAD
><TR
><TH
ALIGN="LEFT"
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>Value</TH
><TH
ALIGN="LEFT"
VALIGN="MIDDLE"
>Meaning</TH
></TR
></THEAD
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>PHP_STREAM_IS_STDIO</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>The stream is implemented using the stdio implementation</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>PHP_STREAM_IS_SOCKET</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>The stream is implemented using the network stream implementation</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>PHP_STREAM_IS_USERSPACE</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>The stream is implemented using the userspace object implementation</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>PHP_STREAM_IS_MEMORY</TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>The stream is implemented using the grow-on-demand memory stream implementation</TD
></TR
></TBODY
></TABLE
></DIV
>
</P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
The PHP_STREAM_IS_XXX "constants" are actually defined as pointers to the underlying
stream operations structure. If your extension (or some other extension) defines additional
streams, it should also declare a PHP_STREAM_IS_XXX constant in it's header file that you
can use as the basis of this comparison.
</P
></BLOCKQUOTE
></DIV
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
This function is implemented as a simple (and fast) pointer comparision, and does not change
the stream state in any way.
</P
></BLOCKQUOTE
></DIV
><P
> See also <B
CLASS="function"
>php_stream_cast()</B
> and <B
CLASS="function"
>php_stream_can_cast()</B
>.
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