Apply Redirect to a particular page only

Is your site using a framework, regular WordPress theme, or child theme?

You will need to modify the plugin itself to get this to work.

wp-content/plugins/php-mobile-redirect/includes/functions.php

replace

add_action('init', 'pmr_mobile_redirect');

with

function pmr_single_page_only(){

        if (is_page(42)){

            pmr_mobile_redirect();

        }
    }

    add_action('get_header','pmr_single_page_only');

*note 42 in “if (is_page(42)){” should be changed to the ID of the page that you want the redirect to appear on.

Keep in mind that when the plugin is updated, these modifications will be replaced and you will need to modify the code again.

Thanks for your response, have apply the above code to the plugin but not detecting mobile device and also not redirecting. What do you think might be the issue?

Thanks again

Please post the entire code from the plugins functions.php

okay I will do that right away

<?php

	add_action('init', 'pmr_mobile_redirect');

	function pmr_mobile_redirect(){

		global $pmr_options;

		if ($pmr_options['enabled'] == true)
		{
			$detect = new Mobile_Detect();

			if ($detect->isMobile() && isset($_COOKIE[$pmr_options['mobile_cookie']]))
			{
				$detect = "false";
			}
			elseif ($detect->isMobile())
			{
				header('Location: https://' . $pmr_options['mobile_url']);
				exit;
			}
		}
	}

[Please post code & markup between backticks or use the code button. Your posted code may now have been permanently damaged by the forum’s parser.]

Where did you add the code, I posted above?

Sorry about that, I sent wrong code.
Here is the code below:

<?php

	// Replace----
	/*add_action('init', 'pmr_mobile_redirect');*/

	// with-----
	function pmr_single_page_only(){
		if (is_page(591)){
			pmr_mobile_redirect();
		}
	}
	add_action('get_header','pmr_single_page_only');

	function pmr_mobile_redirect(){

		global $pmr_options;

		if ($pmr_options['enabled'] == true)
		{
			$detect = new Mobile_Detect();

			if ($detect->isMobile() && isset($_COOKIE[$pmr_options['mobile_cookie']]))
			{
				$detect = "false";
			}
			elseif ($detect->isMobile())
			{
				header('Location: https://' . $pmr_options['mobile_url']);
				exit;
			}
		}
	}

[Please post code & markup between backticks or use the code button. Your posted code may now have been permanently damaged by the forum’s parser.]

What is the URL to the page you are trying to redirect from?

The example is like trying to access a page from URL https://www.mysite.com/movie/movie509
and re-direct to https://www.mysite.com/mobiledevice

Sorry about not given you my original URL,is just only for security reason, I hope you can understand.

Thanks

I understand. No worries. The only thing I can think is that you have entered the incorrect page ID. I have tested the code I gave you on several test sites, and it functioned correctly. How did you go about finding your page ID?

There are also alternate methods to identify a single page, see below and give some of the other options a try:

is_page();
// When any single Page is being displayed.

is_page(42);
// When Page 42 (ID) is being displayed.

is_page('Contact');
// When the Page with a post_title of "Contact" is being displayed.

is_page('about-me');
// When the Page with a post_name (slug) of "about-me" is being displayed.

is_page(array(42,'about-me','Contact'));
// Returns true when the Pages displayed is either post ID 42, or post_name "about-me", or post_title "Contact".  Note: the array ability was added at Version 2.5.

Thank you for your quick response, firstly I’m using a premium theme which is the default wordpress theme.
How I got my page ID is I went on the edit post section of my wordpress admin, and click on “Get Shortlink” button, a dialog box with page URL display: https://www.mywebsite.com/movie/?p=591

That is how I got my page ID = 591

Meanwhile, I shall give those above option a try now

Ok, so it sounds like you are actually trying to redirect from a post not a page? If so you need to replace:

is_page(591)

with

is_single('591')

Thank you, I shall get back to you soon