How block IP in PHP?

Hi
I need block ip with PHP not firewall or htaccess
I know that i can forbidden user with send status to header
Is there other way?

You can create a filter that always redirect to a page with an error message when you detect the IP addresses you want to block:
https://codeigniter4.github.io/userguide...lters.html

CodeIgniter 4 tutorials (EN/FR) - https://includebeer.com
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@includebeer, he's using CodeIgniter 3.

You can check when they access the site by using CodeIgniter's ip_address() method.

Store the blocked IP's in the database load them on startup into an array then get the
users ip using ip_address() and loop through the blocked ip array to see if it's in there.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

users ip using ip_address() and loop through the blocked ip array to see if it's in there.

I would use the in_array function here. For readability and a little bit faster.

You can create a filter that always redirect to a page with an error message when you detect the IP addresses you want to block:
https://codeigniter4.github.io/userguide...lters.html

But i use Codeigniter 3
Codeigniter 4 is hard to learning now

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@includebeer, he's using CodeIgniter 3.

You can check when they access the site by using CodeIgniter's ip_address() method.

Store the blocked IP's in the database load them on startup into an array then get the
users ip using ip_address() and loop through the blocked ip array to see if it's in there.

Yes it is good way but it busy database for many IP

Option 1: Store in database and upon reading them - store them in a cache engine e.g. Redis for X time.
Option 2: Store them in PHP-file.

You can use hooks for both options.

If you don't want to display any message just terminate it with exit;.

Option 1: Store in database and upon reading them - store them in a cache engine e.g. Redis for X time.
Option 2: Store them in PHP-file.

You can use hooks for both options.

If you don't want to display any message just terminate it with exit;.

A question?
If i add IP to htaccess file
Is is working? or need to restart apache?

Your .htaccess will be read on any new request. So you can block new ip-adressers with it.

Your .htaccess will be read on any new request. So you can block new ip-adressers with it.

Oh Thanks it is finally solution