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i am using Magento 2 , In my case i want to change programmatically the instance's logo and favicon , but i can't find the right file to change them ,

can anyone help me do that please

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For set Logo

app\code\VendoreName\ModuleName\view\frontend\layout

default.xml

<?xml version="1.0"?>

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
  <body>
    <referenceBlock name="logo">
        <action method="setLogoFile">
            <argument name="logo_file" xsi:type="string">VendoreName_ModuleName::images/logo.png</argument>
        </action>
    </referenceBlock>
  </body>
</page>

Put your logo image to this path app\code\VendoreName\ModuleName\view\frontend\web\images here my image file name is logo.png.

For set fevicon icon

  1. Add your icons in the <your_theme_dir>/Magento_Theme/web/ directory.
  1. In the <your_theme_dir>/Magento_Theme/layout/default_head_blocks.xml layout file specify the paths to the icons and their sizes. For example, if you added a favicon-32x32.png icon and want it to be used as a 32px x 32px favicon, your default_head_blocks.xml would be like following:
<?xml version="1.0"?>

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <head>
        <link src="Magento_Theme::images/logo.png" rel="icon" sizes="32x32" />
    </head>
</page>
  1. Put your fevicon image into <your_theme_dir>/Magento_Theme/web/images/logo.png

*Note:- For your changes to be applied, clear the browser cache, and the following directories on the server (do not delete the .htaccess file!): - pub/static - all directories under var

I Hope This Helps You.*

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Just inject the class \Magento\Config\Model\ResourceModel\Config $_resourceConfig and set value for web/default/cms_home_page to desired page ‘youridentifier’.

public function __construct(\Magento\Config\Model\ResourceModel\Config $_resourceConfig)
    {
        $this->_resourceConfig = $_resourceConfig;
    }

        $this->_resourceConfig->saveConfig('web/default/cms_home_page', 'youridentifier', 'default', 0);
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  • Thank you for your response , this work for me but just in my PC , i want to do this for all instances so i need to do it by code ? – code 7 Sep 21 '20 at 12:24
  • No it will for all , if website is in live environment. – Hamendra Sunthwal Sep 21 '20 at 12:26
  • Clear Cache in magento – Hamendra Sunthwal Sep 21 '20 at 12:26
  • no it"s in my local now , so if i want to share the config it won't work there in prod – code 7 Sep 21 '20 at 12:29
  • Just follow the same steps in production also, it will work there. – Hamendra Sunthwal Sep 21 '20 at 12:29
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You can create a DataPatch to update the path to both the logo and the favicon:

<?php declare(strict_types=1);

namespace VENDOR\DataPatches\Setup\Patch\Data;

use Magento\Config\Model\ResourceModel\Config;
use Magento\Framework\Setup\Patch\DataPatchInterface;
use Magento\Store\Model\ScopeInterface;

class UpdateFavicon implements DataPatchInterface
{
    /**
     * @var Config
     */
    protected $config;

    public function __construct(
        Config $config
    ) {
        $this->config = $config;
    }

    public function apply()
    {
        $config = $this->config;
        $path = 'PATHTOFILE';
        $config->saveConfig(
            'design/head/shortcut_icon',
            $path,
            ScopeInterface::SCOPE_WEBSITES,
            0
        );
    }

    public static function getDependencies()
    {
        return [];
    }

    public function getAliases()
    {
        return [];
    }
}

Above is an example for changing the favicon. You can also do this for Logo by using design/header/logo_src.

However, in this example it is assumed there's already a logo / favicon in your server.

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  • Thank you sir for your reply , after doing this , and setting up the path of the custom favicon there are no changes on the favicon , still get Magento's favicon!! , where is the problem here ? – code 7 Sep 21 '20 at 15:38
  • Please check if the patch has run (patch_list table) and if the data has been updated in database (core_config_data table. Did the patch run and has the data been updated? – Frank Bokdam Sep 21 '20 at 15:53
  • there is no patch_list table in my database , i have change the module version in module.xml and i have run setup:upgrade , no result !! – code 7 Sep 21 '20 at 16:23
  • Which version of Magento are you using? Datapatches (and the patch_list table) are available as of magento 2.3. However, If you are using an older version you can either update or apply the same logic in an UpdgradeData. – Frank Bokdam Sep 22 '20 at 7:30
  • yes my version is older than 2.3 , can you update for me your question to show me how it works with upgradedata – code 7 Sep 22 '20 at 9:07

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