Description: Disable selected plugins for specific IP addresses - very useful when debugging plugin clashes: k: https://www.damiencarbery.com/2018/03/disable-selected-plugins-for-specified-ips/

debug.log

[10-Mar-2018 16:08:01 UTC] 
array (
  //query-monitor/query-monitor.php,
  //hello.php,
);

disable-selected-plugins.php

<?php
/*
Plugin Name: Disable Selected Plugins
Plugin URI: https://www.damiencarbery.com
Description: Disable selected plugins for specific IP addresses - very useful when debugging plugin clashes.
Author: Damien Carbery
Version: 0.1
*/

class DisableSelectedPlugins {
	private $active_ip;          // Limit plugin to use by these IP addresses.
	private $create_debug_list;  // Whether to create a debug list.
	private $call_count;         // Count of times filter function called so that debug messages not generated too often.
	
	public function __construct() {
		$this->active_ip = array( '12.34.56.78', '34.56.78.90' );
		$this->create_debug_list = true;
		$this->call_count = 0;
	}
	
	public function init() {
		if ( in_array( $_SERVER['REMOTE_ADDR'], $this->active_ip ) ) {
			add_filter( 'option_active_plugins', array( $this, 'modify_active_plugins' ) );
		}
	}
	
	public function modify_active_plugins( $plugin_list ) {
		$this->call_count++;  // In some cases this function was called multiple times but I cannot reproduce this.
		                      // This variable prevents writing plugin list to error_log multiple times.
		
		// Create a commented list of active plugins.
		if ( 1 == $this->call_count && $this->create_debug_list ) {
			$plugin_var = "\narray (\n";
			foreach ( $plugin_list as $plugin ) {
				$plugin_var .= '  //\'' . $plugin . "\',\n";
			}
			$plugin_var .= ');';
			error_log( $plugin_var );
			$this->create_debug_list = false; // Don't create again
		}
		
		// Change the returned list for when in the dashboard or frontend.
		if ( is_admin() ) {
			return $plugin_list;
		}
		else {
			return $plugin_list;
		}		
	}
}

$DisableSelectedPlugins = new DisableSelectedPlugins(); 
$DisableSelectedPlugins->init();

import-code.php

<?php
// Change 'return $plugin_list' to the array written to error_log (or debug.log)
// Example:
return $plugin_list;
// changed to:
return array (
  //query-monitor/query-monitor.php,
  //hello.php,
);