[PLUG] Reading/Writing Binary Files with PHP
Bill Thoen
bthoen at gisnet.com
Tue Aug 31 12:51:02 UTC 2004
On Tue, 31 Aug 2004, Bill Thoen wrote:
> Is it possible to write binary data to a file with PHP? When I try this:
Never mind... The answer is yes. I solved it by use of the pack() and
unpack() functions. Like so:
$data = 128;
$fp = fopen ("test.bin", "w+b");
fwrite ($fp, pack ("L", $data));
// read it back...
fseek ($fp, 0, SEEK_SET);
$bindata = fread ($fp, 4);
fclose ($fp);
$arr = unpack ("Lval", $bindata);
$data = $arr["val"];
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