Maintenance Mode

Snippet Code

Is your site in maintenance? Let users know by directing them to a maintenance page without them disrupting your maintenance.

Introduction




This script requries 2 functions

1. The function to run maintenance mode

2. The function to get the filename



It is recommended that this file is included on EVERY page of your site in order to

work throughout the entire site.



It is also recommended that this is the very first function in your functions file... 

We don't know why, but sometimes it doesn't work if it is not first.

functions.php




<?php

# maintenance mode

function maintain($mode = FALSE){ # $mode either equals TRUE or FALSE

    if($mode){

        # if we are in maintenance, require all pages to go to the maintenance page

        if(filename($_SERVER['SCRIPT_FILENAME']) != 'maintenance.php'){

            # Replace the location to the loacation of your maintenance page

            header("Location: http://mysite.com/maintenance.php");

            exit;

        }

    }else{

        # if we are not in maintenance, don't allow link to maintenance page

        if(filename($_SERVER['SCRIPT_FILENAME']) == 'maintenance.php'){

            # Replace the location to the loacation to your home page

            header("Location: http://mysite.com/");

            exit;

        }    

    }

}

# Run maintenance mode

maintain(); # Leave blank to not be in maintenance mode or use maintain(TRUE);



# get the file name

function filename($url){

    $pos = strrpos($url,'/');

    $str = substr($url,$pos+1);

    return $str;

}

?>

Snippet Comments

Add Your Comment

termite treatment cost
2011-06-25 18:35:18

Great snip I think I'll end up using this function. Thanks again.

orlando medical malpractice lawyers
2011-06-21 19:16:14

This will definitely get you into a maintenance mode. The process works so well.

shyness
2011-06-01 01:00:09

The widely believed to unveil at wwdc next month may have an important feature that the competition lacks. Instead of forcing users.Thanks for sharing the informative post. Regards. Roy.

bernte
2011-04-13 18:32:17

great script!!!!!! :D but what can i do to allow the admin ip to view the site in maintenance mode?

Michael Grigsby
2011-03-14 00:47:06

I've written a script like this before. What I did was tied it into a MySQL database. This approach gave me more flexibility with the script manipulation and as well as security enhancements.

business
2011-03-02 21:20:31

Great snip I think I'll end up using this function. Thanks again.

Anonymous
2010-12-09 18:15:40

Nice idea but if you are working on a site, you need to be able to get to the site. This will dump everyone, including you to the maintenance page. Needs to be flagged for administrators in some way.

php scripts
2010-09-14 00:35:10

i need to say. i need this script. thank you buddy.

Sam Yong
2009-07-25 00:00:00

The filename() function could have been replaced with PHP's native basename() function, which does the same thing.

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