Question

I want to use this mobile detection php file on a magento website and I want to know wich is the best way to insert a php file and use it across other subtemplates, since magento structure is still a bit tricky for me.

Basically I have something like this main-template.phtml and header.phtml

main-template.phtml content is

<?php
    include_once 'Mobile_Detect.php';
    $detect = new Mobile_Detect();
    echo $this->getChildHtml('head');
?>
<?php if ( $detect->isMobile() ) { //condition nr.2 ?>
    <meta name="mobileMain" content="this is for mobile">
<?php } else {?>
    <meta name="NOTmobileMAIN" content="this is not for mobile">
<?php } ?>

header.phtml content is

<?php if ( $detect->isMobile() ) { //condition nr.1 ?>
    <meta name="mobile" content="this is for mobile">
<?php } else {?>
    <meta name="NOTmobile" content="this is not for mobile">
<?php } ?>

When I load main-template.phtml in browser the second condition is working, but the first one throws out an error “Call to a member function isMobile() on a non-object“.

What would be the best way to include Mobile_Detect.php just once in my main-template.phtml and then be able to run that condition in all my subfiles like header.phtml which are gonna be inserted also inside main-template.phtml?

Thank you!

Answer 1

If you name the file Detect.php and place it in a new folder called magento/lib/Mobile/, then you will be able to autoload the class without having to use require_once or include.

path_to_magento
  \-- app
  |     \-- code
  |     \-- design
  |     \-- etc
  \-- lib
  |     \-- Mobile
  |     |     \-- Detect.php    
  |     \-- Varien
  |     \-- Zend
  \-- skin

MyModule’s Controller

<?php
    class My_Module_SomeController extends Mage_Core_Controller_Front_Action
    {
        public function indexAction()
        {
            // Will be automatically loaded from lib/Mobile/Detect.php
            $detect = new Mobile_Detect();

            if ( $detect->isMobile() ) {
                // Do something mobile-friendly
            } else {
                // Do something not
            }
        }
    }

index.php – using mobile detection to load a mobile-friendly store view

<?php
    # Lots of stuff above...

    require_once $mageFilename;

    #Varien_Profiler::enable();

    if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE'])) {
        Mage::setIsDeveloperMode(true);
    }

    #ini_set('display_errors', 1);

    umask(0);

    // This will automatically look in lib/Mobile/Detect.php
    $detect = new Mobile_Detect();

    // Now you can change this store view, i.e. change your entire theme
    if ( $detect->isMobile() ) {
        // Check if a mobile store exists and prepare to load it
        $code = empty($_SERVER['MAGE_RUN_CODE']) ? 'mobile' : $_SERVER['MAGE_RUN_CODE'].'_mobile';
        if ( Mage::app()->getStore($code) ) {
            $_SERVER['MAGE_RUN_CODE'] = 'mobile';
            $_SERVER['MAGE_RUN_TYPE'] = 'store';
        }
    }

    /* Store or website code */
    $mageRunCode = isset($_SERVER['MAGE_RUN_CODE']) ? $_SERVER['MAGE_RUN_CODE'] : '';

    /* Run store or run website */
    $mageRunType = isset($_SERVER['MAGE_RUN_TYPE']) ? $_SERVER['MAGE_RUN_TYPE'] : 'store';

    Mage::run($mageRunCode, $mageRunType);