CENTOS apache ALL=(root) NOPASSWD: /path/to/shell.sh is not working

Trying to do a web interface IPtables management.

Created a file test.php

$output = shell_exec('sudo bash /usr/bin/iptables.sh 2>&1');
echo $output;

Gave /usr/bin/iptables.sh NOPASSWD so I can execute the file with sudo through apache without using a password

sudo iptables -L

sudoers file :

apache ALL=(root) NOPASSWD: /usr/bin/iptables.sh

But I am still getting error

We trust you have received the usual lecture from the local System Administrator. It usually boils down to these three things: #1) Respect the privacy of others. #2) Think before you type. #3) With great power comes great responsibility. sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper{"mode":"full","isActive":false}

However, if I use

apache ALL=(root) NOPASSWD: ALL

Everything works fine.

I double-checked my directory and I used the exact path

[root@CentOS bin]# readlink -f iptables.sh
/usr/bin/iptables.sh

Super clueless here, can anyone help me with a direction? :'(

Try with sudo, since /usr/bin/iptables.sh references to root of root.

$output = shell_exec("sudo -u root sh -c 'bash /usr/bin/iptables.sh 2>&1'");
echo $output;