Maintenance mode with PHP

• Language:: PHP
• Type:: Back-end
• Context:: When you have to maintenance on your site

When updating your site, it is generally a good thing to temporarily redirect your users to a “Maintenance” page so they will not see any critical info such as error messages.

This is generally done using an .htaccess file, but it can be done easily with PHP:

`01.``function`  `maintenance(``$mode`  `= FALSE){`
`02.``if``(``$mode``){`
 
`03.``if``(``basename``(``$_SERVER``[``'SCRIPT_FILENAME'``]) != ``'maintenance.php'``){`
 
`04.``header(``"Location: http://example.com/maintenance.php"``);`
`05.``exit``;`
`06.``}`
`07.``}``else``{`
 
`08.``if``(``basename``(``$_SERVER``[``'SCRIPT_FILENAME'``]) == ``'maintenance.php'``){`
 
`09.``header(``"Location: http://example.com/"``);`
`10.``exit``;`
`11.``}`
`12.``}`
`13.``}`

• Dependencies:: – link to any other code or packages that are relevant or that you need to use this snippet

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• Type::snippet
• Source: http://www.phpsnippets.info/easy-maintenance-mode-with-php