php advanced redirect using cURL

Question

I want to redirect a page to another server using php. But sometimes the server goes down for maintenance as It's still in BETA.

So I would like to use a php script which can first run a curl function or code to receive a particular value from the server to ensure that the server is online. then redirect the page.

like

curl http://11.21.21.231/curl_connector_script.php

then recive the value as a string

if $string=1

run the php redirect code

else

showing in my page that server is offline

Sorry but I am very very new to php.

Can anyone tell me how can I do this in a proper php code?

possible duplicate of [How can one check to see if a remote file exists using PHP?](http://stackoverflow.com/questions/981954/how-can-one-check-to-see-if-a-remote-file-exists-using-php) — andy, Nov 01 '14 at 19:21

score 0 · Answer 1 · answered Nov 01 '14 at 19:23

0

This should go on the very top of whatever file you have

$resp = file_get_contents('http://11.21.21.231/curl_connector_script.php');
if($resp == 0) { // Not online
    header('location: offline.php');
}

This works by sending a simple get request to the page that checks the status of your website, if the response is zero, meaning not online, then he's redirected to offline.php using headers

answered Nov 01 '14 at 19:23

Ali

3,479
4
16
31

and what code I should include the curl_connector_script.php ? – Yan Khan Nov 01 '14 at 19:25
It depends on how your servers gets into maintenance mode. – Ali Nov 01 '14 at 19:28
I just need to check if the file is available or not.. if file is available then I will run the redirect code and if not then I will not redirect the page to that server but I will show in my page that the server is offline.. – Yan Khan Nov 01 '14 at 19:30

score 0 · Accepted Answer · answered Nov 01 '14 at 19:24

0

if itsnt ssl, you can use $status = file_get_contents('http://server.com/curl_connector_script.php');

This script http://server.com/curl_connector_script.php can returning some flag "1"

answered Nov 01 '14 at 19:24

Maxim Dvorkin

91
1
5

sorry but I am a nob to php could you please explain the code further as it works on php? and what code I should include in the curl_connector_script.php ? should I just put a value there like 1? or something??? – Yan Khan Nov 01 '14 at 19:28
curl_connector_script.php code: if this script will return some value, when server ok – Maxim Dvorkin Nov 01 '14 at 19:32

php advanced redirect using cURL

2 Answers2