check if page is up

icthus

I would like to simply call a webpage via http and get a file size returned.... I have been looking thru the manual but seem to over look the right function.
TIA
Jim

djroki

As the function file_size() won't handle remote servers, you'll need to open the file using fopen() and get the filesize from fstat:

$fp = fopen ("http://www.yourdom.com/file.php", "r");
$stat_arr = fstat ($fp);
$file_size = $stat_arr[6];
fclose($fp);
clearstatcache( );

This should work providing you can open the file.

Good luck, roki

icthus

I can open the url in the uncommented code yet the commented code outputs nothing to the browser....what am I missing... can I ping to a site via php run as apache module?

<PRE>
$file = "http://www.domainname.com";
$fd = fopen ("$file", "r");
while (!feof ($fd)) {
$buffer = fgets($fd, 4096);
echo $buffer;
}
fclose ($fd);

//$fp = fopen($file, "rw");
//$stat_arr = fstat($fp);
//$file_size = $stat_arr[6];
//echo "$file_size";
//fclose($fp);
//clearstatcache( );
</PRE>

Thanks!
Jim

hand

//$fp = fopen($file, "rw");

The mode "rw" doesn't exist (http://www.php3.de/manual/en/function.fopen.php) You only can use 'r', 'r+', 'w', 'w+', 'a' or 'a+'

If safe_mode is off you can ping to the target:

<? 
$ip = "www.lin.ux"; 
$online=exec("ping $ip -c 1");  // linux
// $online=exec("ping $ip -n 1");  // only WINDOZ
if (eregi("unbekannter host", $online) || eregi("unknown host", $online)) { 
    print "NO ping to $ip<br>\n"; 
} else { 
    print "ping to $ip successfully<br>\n"; 
} 
?>

Another posibility (without safe_mode)

$socket = fsockopen($host, $port, &$errno, &$errstr);
if ($socket) {
   echo "Reaction on Port $host : $port";
}

icthus

Yeah I was goofing around with that commented one I had tried as
$fp = fopen($file, "r"); and out of desporation and ignorance I added the rw....

The ping worked out great thanks!

Jim

djroki

Sorry I should have said, my above example will output nothing unless you print $file_size:

$file_size = $stat_arr[6];

print $file_size; // gives you the size in bytes

looks like you've got it sorted ayway 🙂

roki