referer counter
| From: | Thomas Hochstetter | Date: | Thu, 12 Jun 2003 09:29:18 +0000 |
| Subject: | referer counter | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-151214@lists.php.net to get a copy of this message | ||
Hi guys,
I am writing a counter that checks where the hit comes from, and if it
comes from the same site, it will not count .
I have a question related to performance:
In the script (as yet) I have to open the txt file twice at this stage,
because I first need to read from it and then write to it. The problem
is that the a+ and w+ property of fopen set the file 0 before I can read
from it. So here is the real question:
Is it possible to do this with only one read? Does it matter performance
wise?
The script functions are below:
function ref($url)
{
$nc = 0;
$cfile = "inc/log/logcount.txt";
$valid = preg_match("/dcv/", $url);
$fp = fopen($cfile,"r");
$pc = fgets($fp,1024);
if($valid){
echo $pc;
} else {
$this->incr($pc,$fp,$nc);
fclose($fp);
$this->write($nc,$cfile);
echo $nc;
}
}
function incr($pc,$fp,&$nc)
{
if($pc != "")
$nc = intval($pc)+1;
else
fputs($fp,1);
return $nc;
}
function write($nc,$cfile)
{
$fp = fopen($cfile,"w");
$done = fputs($fp,$nc);
if($done == 0)
exit;
fclose($fp);
}
//END of counter functions
}
Additionally, why do I have to pass the nc variable to function incr()
as reference? It did not work just do return $nc.
Thomas