Explain code please!

[isuru]

Could someone please explain this bit of code for me?

I found it in a tutorial formerly found at Zend.com

what does it do?

srand(microtime());
$id=sprintf("%c%d",ord(?A?)+rand(0,26),time());
$dirname="$filepath/$id";
mkdir($dirname,0700);
$filename=$dirname."/picture";
$out=@fopen($filename,"w");

[freddydoesphp]

It would appear that generates a random number then makes a dir with that random number then opens a file in that folder for writing

[isuru]

Thanks for your help freddy

could you please explain this bit of code as well? its from the same tutorial :

while($buffer=fread($fp, 8192)){
	fwrite($out,$buffer);
	}

BTW freddy, do you have ICQ?

[mad-onion]

I can explain that if thats okay with you :-)

while($buffer=fread($fp, 8192)){
fwrite($out,$buffer);
}

...that read 8192 bytes of the filehandle $fp and then writes it to the filehandle defined by $out...

[isuru]

Thanks a lot mad-onion

but when the while loop goes a second time doesn't that mean whatever is in the $out variable gets replaced with the new values of the $buffer variable? or does the new values of the buffer variable get appended to the end of the $out variable?

thanks

[freddydoesphp]

It would just write the new value of $out right after the olde value and so on and so forth...

[mad-onion]

The script is basically copying one file to another...
So each time it loops it adds the value of buffer to the out file...

[mad-onion]

I receieved email notification of freddies reply about .01 of a second after clicking submit...
What is the probability?! (rhetorical question)

[Vinay]

the probability is... wait , no, lemme not say

/me wonders where this thread is going to / coming from