Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>pg_lo_read</H1
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>    (PHP 4 &#62;= 4.2.0, PHP 5)</P
>pg_lo_read&nbsp;--&nbsp;从大型对象中读入数据</DIV
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><H2
>说明</H2
>string <B
CLASS="methodname"
>pg_lo_read</B
> ( resource large_object, int len )<BR
></BR
><P
>&#13;     <B
CLASS="function"
>pg_lo_read()</B
> 从大型对象中读入最多 <CODE
CLASS="parameter"
>len</CODE
> 字节的数据并以字符串返回。<CODE
CLASS="parameter"
>large_object</CODE
> 指定了有效的大型对象的资源号，<CODE
CLASS="parameter"
>len</CODE
> 则指定了大型对象的段所允许的最大长度。如果出错则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
    </P
><P
>&#13;     要使用大型对象（lo）接口，需要将其放置在事务块中。
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><B
>注意: </B
>
      本函数以前的名字为 <TT
CLASS="literal"
>pg_loread()</TT
>。
     </P
></BLOCKQUOTE
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>&#13;     参见 <A
HREF="function.pg-lo-read-all.html"
><B
CLASS="function"
>pg_lo_read_all()</B
></A
>。
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