Sophie: php-manual-ro-0:20051028-1 noarch

php-manual-ro-20051028-1.noarch.rpm

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><H1
><A
NAME="function.fseek"
></A
>fseek</H1
><DIV
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><A
NAME="AEN28673"
></A
><P
>    (PHP 3, PHP 4 , PHP 5)</P
>fseek&nbsp;--&nbsp;Seeks on a file pointer</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN28676"
></A
><H2
>Description</H2
>int <B
CLASS="methodname"
>fseek</B
> ( resource handle, int offset [, int whence])<BR
></BR
><P
>&#13;     Sets the file position indicator for the file referenced by
     <VAR
CLASS="parameter"
>handle</VAR
>.The new position, measured in bytes
     from the beginning of the file, is obtained by adding
     <VAR
CLASS="parameter"
>offset</VAR
> to the position specified by
     <VAR
CLASS="parameter"
>whence</VAR
>, whose values are defined as
     follows:
     <P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><TT
CLASS="constant"
><B
>SEEK_SET</B
></TT
> - Set position equal to <VAR
CLASS="parameter"
>offset</VAR
> bytes.</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>SEEK_CUR</B
></TT
> - Set position to current location plus <VAR
CLASS="parameter"
>offset</VAR
>.</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>SEEK_END</B
></TT
> - Set position to end-of-file plus <VAR
CLASS="parameter"
>offset</VAR
>. 
      (To move to a position before the end-of-file, you need to pass a negative 
      value in <VAR
CLASS="parameter"
>offset</VAR
>.)</TD
></TR
></TBODY
></TABLE
><P
></P
>
    </P
><P
>&#13;     If <VAR
CLASS="parameter"
>whence</VAR
> is not specified, it is assumed to be
     <TT
CLASS="constant"
><B
>SEEK_SET</B
></TT
>.
    </P
><P
>&#13;     Upon success, returns 0; otherwise, returns -1. Note that seeking
     past EOF is not considered an error.
    </P
><P
>&#13;     <TABLE
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><A
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></A
><P
><B
>Exemplu 1. <B
CLASS="function"
>fseek()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br />$fp </font><font color="#007700">= </font><font color="#0000BB">fopen</font><font color="#007700">(</font><font color="#DD0000">'somefile.txt'</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// read some data<br /></font><font color="#0000BB">$data </font><font color="#007700">= </font><font color="#0000BB">fgets</font><font color="#007700">(</font><font color="#0000BB">$fp</font><font color="#007700">, </font><font color="#0000BB">4096</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// move back to the beginning of the file<br />// same as rewind($fp);<br /></font><font color="#0000BB">fseek</font><font color="#007700">(</font><font color="#0000BB">$fp</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">);<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
    </P
><P
>&#13;     May not be used on file pointers returned by
     <A
HREF="function.fopen.html"
><B
CLASS="function"
>fopen()</B
></A
> if they use the "http://" or "ftp://"
     formats.
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Not&#227;: </B
>
      The <VAR
CLASS="parameter"
>whence</VAR
> argument was added after PHP 4.0.0.
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     See also <A
HREF="function.ftell.html"
><B
CLASS="function"
>ftell()</B
></A
> and
     <A
HREF="function.rewind.html"
><B
CLASS="function"
>rewind()</B
></A
>.
    </P
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