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>ftp_nb_get</H1
><DIV
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><A
NAME="AEN21844"
></A
><P
> (PHP 4 >= 4.3.0)</P
>ftp_nb_get -- Retrieves a file from the FTP server and writes it to a local file (non-blocking)</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN21847"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>ftp_nb_get</B
> ( resource ftp_stream, string local_file, string remote_file, int mode [, int resumepos])<BR
></BR
><P
> <B
CLASS="function"
>ftp_nb_get()</B
> retrieves <TT
CLASS="parameter"
><I
>remote_file</I
></TT
>
from the FTP server, and saves it to <TT
CLASS="parameter"
><I
>local_file</I
></TT
>
locally. The transfer <TT
CLASS="parameter"
><I
>mode</I
></TT
> specified must
be either <TT
CLASS="constant"
><B
>FTP_ASCII</B
></TT
> or
<TT
CLASS="constant"
><B
>FTP_BINARY</B
></TT
>. The difference between this function and the
<A
HREF="function.ftp-get.html"
><B
CLASS="function"
>ftp_get()</B
></A
> is that this function retrieves the file
asynchronously, so your program can perform other operations while the
file is being downloaded.
</P
><P
> Devuelve <TT
CLASS="constant"
><B
>TRUE</B
></TT
> si todo fue bien, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> en caso de fallo.
</P
><P
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></A
><P
><B
>Ejemplo 1. <B
CLASS="function"
>ftp_nb_get()</B
> example</B
></P
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><PRE
CLASS="php"
>// Initate the download
$ret = ftp_nb_get($my_connection, "test", "README", FTP_BINARY);
while ($ret == FTP_MOREDATA) {
// Do whatever you want
echo ".";
// Continue downloading...
$ret = ftp_nb_continue ($my_connection);
}
if ($ret != FTP_FINISHED) {
echo "There was an error downloading the file...";
exit(1);
}</PRE
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><A
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></A
><P
><B
>Ejemplo 2. Resuming a download with <B
CLASS="function"
>ftp_nb_get()</B
></B
></P
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><PRE
CLASS="php"
>// Initate
$ret = ftp_nb_get ($my_connection, "test", "README", FTP_BINARY,
filesize("test"));
// OR: $ret = ftp_nb_get ($my_connection, "test", "README",
// FTP_BINARY, FTP_AUTORESUME);
while ($ret == FTP_MOREDATA) {
// Do whatever you want
echo ".";
// Continue downloading...
$ret = ftp_nb_continue ($my_connection);
}
if ($ret != FTP_FINISHED) {
echo "There was an error downloading the file...";
exit(1);
}</PRE
></TD
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>
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><A
NAME="AEN21887"
></A
><P
><B
>Ejemplo 3.
Resuming a download at position 100 to a new
file with <B
CLASS="function"
>ftp_nb_get()</B
>
</B
></P
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><PRE
CLASS="php"
>// Disable Autoseek
ftp_set_option ($my_connection, FTP_AUTOSEEK, FALSE);
// Initiate
$ret = ftp_nb_get ($my_connection, "newfile", "README", FTP_BINARY, 100);
while ($ret == FTP_MOREDATA) {
...
// Continue downloading...
$ret = ftp_nb_continue ($my_connection);
}</PRE
></TD
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></TD
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>
</P
><P
> In the example above, <TT
CLASS="filename"
>"newfile"</TT
> is 100
bytes smaller than <TT
CLASS="filename"
>"README"</TT
> on the FTP
server because we started reading at offset 100. If we have
not have disabled <TT
CLASS="constant"
><B
>FTP_AUTOSEEK</B
></TT
>, the first
100 bytes of newfile will be <TT
CLASS="literal"
>'\0'</TT
>.
</P
><P
> See also <A
HREF="function.ftp-nb-fget.html"
><B
CLASS="function"
>ftp_nb_fget()</B
></A
>,
<A
HREF="function.ftp-nb-continue.html"
><B
CLASS="function"
>ftp_nb_continue()</B
></A
>,
<A
HREF="function.ftp-get.html"
><B
CLASS="function"
>ftp_get()</B
></A
> and <A
HREF="function.ftp-fget.html"
><B
CLASS="function"
>ftp_fget()</B
></A
>.
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