Need assistance with WordPress mobile redirect code

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I am attempting to find a solution to redirect a single page from my WordPress website to a mobile version (I do not want to redirect all mobile users for all my pages to a different page or theme, only just a single page). With some help from the stackoverflow community, I currently have the following code (utilizing detectmobilebrowsers.com to help with the redirect) and am using it as a plugin in WordPress, however it’s not currently working. I think the code needs a little work, so any help you could provide would be most appreciated! Keep in mind I’m a newbie with coding 🙂 Thanks!

—–UPDATE—–

add_action( 'template_redirect', 'redirect_so_19285382' );

function redirect_so_19472213() 
{
if ( !is_page( 2766 ) )
        return;

if( is_mobile_detectmobilebrowsers_com() ) 
{ 
    wp_redirect( 'http://lifebyjohn.com/mobile-schedule' ); 
    exit(); 
}
}

function is_mobile_detectmobilebrowsers_com()
{
$useragent=$_SERVER['HTTP_USER_AGENT'];
return 
preg_match(     '/(android|bbd+|meego).+mobile|avantgo|bada/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)/|plucker|pocket|psp|series(4|6)0|symbian|treo|up.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i', $useragent ) 
|| preg_match( '/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw-(n|u)|c55/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do(c|p)o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(-|_)|g1 u|g560|gene|gf-5|g-mo|go(.w|od)|gr(ad|un)|haie|hcit|hd-(m|p|t)|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c(-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac( |-|/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |/)|klon|kpt |kwc-|kyo(c|k)|le(no|xi)|lg( g|/(k|l|u)|50|54|-[a-w])|libw|lynx|m1-w|m3ga|m50/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk/|se(c(-|0|1)|47|mc|nd|ri)|sgh-|shar|sie(-|m)|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel(i|m)|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i', substr( $useragent,0,4 ) );
}
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1 comment

  1. The problem is with site_url*, it doesn’t take a full path.

    You can either do:

    wp_redirect( site_url( 'mobile-schedule' ) );

    or simply:

    wp_redirect( 'http://example.com/mobile-schedule' );

    * The Codex is our friend, always check the Codex 🙂

    And you’re redirecting every page that is not 2766 to the mobile page, in essence, all your site is redirecting to the mobile page, including the mobile page itself, loopsss… 🙂

    I suppose page 2766 is the Non-Mobile version: http://example.com/schedule. So, if not our page, do nothing:

    if( !is_page( 2276 ) ) // <--- note the exclamation, that means NOT

    I just tried the following plugin in my site and works ok with my iPhone. I left out the function is_mobile_detectmobilebrowsers_com, it’s still same. 

    <?php
/**
 * Plugin Name: Redirect One Page
 */
add_action( 'template_redirect', 'redirect_so_19472213' );

function redirect_so_19472213() 
{
    if ( !is_page( 2276 ) )
            return;

    if( is_mobile_detectmobilebrowsers_com() ) 
    { 
        wp_redirect( 'http://lifebyjohn.com/mobile-schedule' ); 
        exit(); 
    }
}