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>sqlite_udf_encode_binary</H1
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><P
> (PHP 5)</P
>sqlite_udf_encode_binary -- Encode binary data before returning it from an UDF</DIV
><DIV
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><A
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></A
><H2
>说明</H2
>string <B
CLASS="methodname"
>sqlite_udf_encode_binary</B
> ( string data )<BR
></BR
><P
> <B
CLASS="function"
>sqlite_udf_encode_binary()</B
> applies a binary encoding
to the <CODE
CLASS="parameter"
>data</CODE
> so that it can be safely returned from
queries (since the underlying libsqlite API is not binary safe).
</P
><P
> If there is a chance that your data might be binary unsafe (e.g.: it
contains a NUL byte in the middle rather than at the end, or if it has and
<TT
CLASS="literal"
>0x01</TT
> byte as the first character) then you must
call this function to encode the return value from your UDF.
</P
><P
> PHP does not perform this encode/decode operation automatically as it would
severely impact performance if it did.
</P
><DIV
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><B
>注意: </B
>
Do not use <A
HREF="function.sqlite-escape-string.html"
><B
CLASS="function"
>sqlite_escape_string()</B
></A
> to quote strings
returned from UDF's as it will lead to double-quoting of the data. Use
<B
CLASS="function"
>sqlite_udf_encode_binary()</B
> instead!
</P
></BLOCKQUOTE
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><H2
>参见</H2
><P
> <P
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><A
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><B
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>sqlite_udf_decode_binary()</B
></A
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><B
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>sqlite_escape_string()</B
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>sqlite_create_function()</B
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>sqlite_create_aggregate()</B
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