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Magento 1.x, Clean test data

Customers

SET FOREIGN_KEY_CHECKS=0;

-- Customers
TRUNCATE `customer_address_entity`;
TRUNCATE `customer_address_entity_datetime`;

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Magento 1.x.x | Apache configuration | Use of capital and small initial letters

RewriteMap lower int:tolower
  RewriteCond %{REQUEST_URI} [A-Z]
  RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
  RewriteCond %{REQUEST_METHOD} !POST
  RewriteCond %{REQUEST_URI} !/customer/
  RewriteCond %{REQUEST_URI} !/checkout/
  RewriteCond %{REQUEST_URI} !/backmgmt2/

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Open for edit bashrc file

gedit ~/.bashrc

or `vi` or `nano` or any editor

Add to the end(as example) of file

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How to Install Multiple PHP Version with Apache on Ubuntu 18.04 & 16.04

Generally, the hos manager used a separate server for each PHP version application deployment. Which increases the hosting cost. Some of the host managers are using Docker to run multiple PHP version on the single server. Also, most of you are aware of the configuration, I used in this tutorial. But some of the system administrators are not aware of this. This tutorial will help you to install multiple PHP version with Apache on Ubuntu 18.04 and 16.04 system without switching PHP versions. This tutorial describes the installation and configuration of two VirtualHost on Apache with separate PHP versions. First VirtualHost will work with PHP 5.6 and another VirtualHost will run with PHP 7.2. So just go through this tutorial. You can also use more than two PHP versions with Apache as required but this tutorial covers two only.

Apache Installation

Install Apache web server from the official repository. Launch terminal on your system

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Magento 2. Get media URL in template file

You can get media url in your template file using below way but without using objectmanager you must have to define Block file with __construct() method with define storeManagerInterface in construct method.

In your phtml Block file create __construct function.

Add to __construct in your class

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Magento 2. Display yes/no in grid instead 0/1

Need to create source class(Which must implement Magento\Framework\Data\OptionSourceInterface) for this which defined

<?php

namespace Vendor\Module\Model\Source;

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How to colorize output of git

Auto

    git config --global color.ui auto

Manual

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Magento. Add rel links prev/next into head for pagination (SEO)

Create block class

<?php

class Vendor_Extension_Block_Html_Rel extends Mage_Core_Block_Template
{
    

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Magento. Save core config data using install script

Add install/upgrade script, and run migration.
Method saveConfig() has 2 required parameters ($path and $value) and 2 optional ($scope that equal default by default and $scopeId that equal 1 by default). More info you can see in class Mage_Core_Model_Config.

    <?php

 $installer = $this;

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Ubuntu get IP address

Some ways to get your ip address both local and public.

Local

    hostname -I