On Wed, Sep 19, 2012 at 6:43 PM, Rob <rob_adams@xxxxxxxxxxx> wrote: > I have a very large XML file that I have to process. It's about 7 GB. > Some of the individual elements that I need are larger than 8192 bytes. > I'm trying to write a Stream wrapper class to give me a specific element > at a time, but I keep running into issues with the stream wrapper and > fread, stream_get_content functions. > > fread will never return more than 8192 bytes (is that a bug?), so I can't > use that at all. When I use stream_get_content, and pass in 16384, weird > things happen in my stream_read method. If I return 16384 bytes, it gets > truncated to 8192, and the stream_read method is called again and again, > until the total returned is 16384. Normally, stream_read is called twice > in this case (since it "returns" 8192 both times). > > This really screws up what I'm trying to do with this stream wrapper. > Admittedly, I don't know much about stream wrappers. This is my first > one, and I can't find much relevant documentation on them. But it > doesn't seem like it's working correctly to me. If I ask for 16384 bytes > with fread, shouldn't it give me 16384 bytes? And if I return 16384 > bytes when I use stream_get_contents, shouldn't it return 16384 bytes the > first time? > > Thanks for any help. > > -- Rob I'm not sure if I'm missing something here, but PHP manual clearly states that when using fread on streams you need to call fread in a loop to get the amount of bytes required, as it will only return 1 packet at a time (TCP/IP are usually 8192 bytes). (Though Adam is probably right that the builtin XML parser is the best way) - Matijn -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
