Comments by Member 13967442

Member 13967442 1-Sep-18 5:19am View

one header, contains info about # records that needs to be unpacked for that particular packet. and so the info in each header is different. e.g one packet can have 2 records or the next packet could be 5...according to the read in each $header['L# of Records'];

Member 13967442 31-Aug-18 15:16pm View

what I am saying is, the above solution only works for the first packet,
$numRecords = $header['L# of Records']; // the value in the $numRecords is the number of records in the first first packet. how do I loop to get $numRecords in the header file of each packet.

Member 13967442 31-Aug-18 13:12pm View

what about reading the next packet header?

Member 13967442 31-Aug-18 12:35pm View

$header = unpack ($header_format, $data);
$numRecords = $header['L# of Records'];

for ($i = 0; i < $numRecords; $i++)
{
$record = unpack ($record_format, $data, $i);
}

I believe the above code might unpack the first packet, how do I do it for next packet until to the end of file

Member 13967442 31-Aug-18 11:39am View

the record has a size of 30 and the header 18 in size, that is how i counted it

Member 13967442 31-Aug-18 11:15am View

sorry that is a mistake

Member 13967442 31-Aug-18 10:26am View

The file is not a .dbf file, it is a .bin file with each packet having header size 18. and 'CTime/' is wrong 'dTime', since it is timestamp

Member 13967442 31-Aug-18 0:36am View

Deleted

Every packet has a header file, every header file should be unpacked first to get 'L# of Records/' , then I know how many records needs to be unpacked the rest of file. I have used the for loop, since every header should have
'Cid/'. 'Cnumber/' . 'CIdentifier/' . ....similar but my output is not having that.
for ($offset = 0; $offset < strlen ($data); $offset += 32) {
$unpackeddata= unpack ("@$offset/$header_format", $data);
print "

"; print_r ($unpackeddata);print "

";}

Member 13967442 30-Aug-18 13:59pm View

I tried to explain a bit,added more code

Comments by Member 13967442 (Top 9 by date)