If web is not accesible go to another site

Hello,

Is it possible in PHP (or even in HTML) to find out whether or not
a page is accessible?

The reason for being not accessible might be server down, file not there, etc.

It is something like this:

PHP script:

if ([url]http://first_address[/url] is not accessible)
{
do JOB +1
}
else
{
do JOB#2
}

Thanks
XB

Assuming you are referencing a local file, you can use:

<?php
if (file_exists("/path/to/folder") {
   func1();
} else {
   func2();
}
?>

or,

<?php
if (file_exists("/path/to/file.html") {
   func1();
} else {
   func2();
}
?>

If however you are referencing a remote file you can (I think) use

url_exists("www.somedomain.com/folderorfile")

in the same way.

Hope this helps

Do an fopen() or fsockopen() and see if the file pointer works. Make sure you set a timeout too.

It is not local file.

I tried url_exists(),

I got:

Fatal error: Call to undefined function: url_exists()

Borior gave you an example to a function which doesn't exist / isn't part of the main PHP function set.

Go read the manual page on fopen() or fsockopen()

I'll do that after the long... holiday vacation, and
I have to hit the road song...

Thanks to everyone who helped.