PHP mysql Categories and Subcategories Example

Here, i will show you how to create dependent dropdown list of categories and subcategories in php mysql with jQuery ajax.

PHP MySQL Dynamic Category and SubCategory Dependent Dropdown List using Ajax

Just follow below steps for retrieve and display category and subcategory in dropdown list onchange in PHP MySQL using jQuery ajax:

• Step 1: Create Table
• Step 2: Insert Data In Table(Category and SubCategory)
• Step 3: Create DB Connection PHP File
• Step 4: Create Form And Category, SubCategory Dropdown in Form
• Step 5: Get Sub Category in Dropdown List by Category Id

https://www.tutsmake.com/category-subcategory-dropdown-in-php-mysql-ajax/

#dynamic category and subcategory in php #category and subcategory in php tutorial #categories and subcategories in php mysql #populate dropdown using jquery ajax in php #category and subcategory in php using ajax

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PHP mysql Categories and Subcategories Example

Here, i will show you how to create dependent dropdown list of categories and subcategories in php mysql with jQuery ajax.

PHP MySQL Dynamic Category and SubCategory Dependent Dropdown List using Ajax

Just follow below steps for retrieve and display category and subcategory in dropdown list onchange in PHP MySQL using jQuery ajax:

• Step 1: Create Table
• Step 2: Insert Data In Table(Category and SubCategory)
• Step 3: Create DB Connection PHP File
• Step 4: Create Form And Category, SubCategory Dropdown in Form
• Step 5: Get Sub Category in Dropdown List by Category Id

https://www.tutsmake.com/category-subcategory-dropdown-in-php-mysql-ajax/

#dynamic category and subcategory in php #category and subcategory in php tutorial #categories and subcategories in php mysql #populate dropdown using jquery ajax in php #category and subcategory in php using ajax

Category Subcategory Dropdown in PHP MySQL Ajax

Dynamic category and subcategory dropdown list in PHP from MySQL DB using ajax. In this tutorial, we will show you how to dynamic populate category and subcategory in the dropdown in PHP MySQL using Ajax.

Sometimes, you need to create separate tables for displaying selected subcategories based on selected category dropdowns. But in this tutorial, we will use only a single table (category and subcategory in one table) for a PHP dynamic populate dropdown list onchange of category and subcategories.

This tutorial will help you step by step on how to implement a dynamic category and subcategory dropdown list onchange in PHP MySQL using Ajax or populate the second dropdown based on the first PHP. As well as learn, how to fetch data from the database in the dropdown list in PHP using jQuery ajax.

In this PHP ajax MySQL get categories and subcategories example, we will show subcategory in the dropdown list based on selected category value in PHP using ajax from the database.

This dynamic category and subcategory dropdown list in PHP MySQL using ajax will look like:

category subcategory dropdown list in php mysql ajax

Dynamic Category and Sub Category DependentDropdown List in PHP using Ajax

Follow the below simple and easy and retrieve and display category and subcategory in dropdown list onchange in PHP MySQL using jQuery ajax:

• Step 1: Create Table
• Step 2: Insert Data In Table(Category and SubCategory)
• Step 3: Create DB Connection PHP File
• Step 4: Create Form And Category, SubCategory Dropdown in Form
• Step 5: Get Sub Category in Dropdown List by Category Id

Step 1: Create Table

First of all, open your database and run the following sql query to create categories table into database:

CREATE TABLE `categories` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `parent_id` int(11) NOT NULL DEFAULT '0',
  `category` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

Step 2: Insert Data In Table(Category and SubCategory)

In this step, run the following sql query to insert category and subcategory into mysql database in php:

INSERT INTO `categories` (`id`, `parent_id`, `category`) VALUES
(1, 0, 'General'),
(2, 0, 'PHP'),
(3, 0, 'HTML'),
(4, 3, 'Tables'),
(5, 2, 'Functions'),
(6, 2, 'Variables'),
(7, 3, 'Forms');

#mysql #php #dynamic category and subcategory in php using ajax #php mysql categories and subcategories example

Best MySQL DigitalOcean Performance – ScaleGrid vs. DigitalOcean Managed Databases

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MySQL is the all-time number one open source database in the world, and a staple in RDBMS space. DigitalOcean is quickly building its reputation as the developers cloud by providing an affordable, flexible and easy to use cloud platform for developers to work with. MySQL on DigitalOcean is a natural fit, but what’s the best way to deploy your cloud database? In this post, we are going to compare the top two providers, DigitalOcean Managed Databases for MySQL vs. ScaleGrid MySQL hosting on DigitalOcean.

At a glance – TLDR
ScaleGrid Blog - At a glance overview - 1st pointCompare Throughput
ScaleGrid averages almost 40% higher throughput over DigitalOcean for MySQL, with up to 46% higher throughput in write-intensive workloads. Read now

ScaleGrid Blog - At a glance overview - 2nd pointCompare Latency
On average, ScaleGrid achieves almost 30% lower latency over DigitalOcean for the same deployment configurations. Read now

ScaleGrid Blog - At a glance overview - 3rd pointCompare Pricing
ScaleGrid provides 30% more storage on average vs. DigitalOcean for MySQL at the same affordable price. Read now

MySQL DigitalOcean Performance Benchmark
In this benchmark, we compare equivalent plan sizes between ScaleGrid MySQL on DigitalOcean and DigitalOcean Managed Databases for MySQL. We are going to use a common, popular plan size using the below configurations for this performance benchmark:

Comparison Overview
ScaleGridDigitalOceanInstance TypeMedium: 4 vCPUsMedium: 4 vCPUsMySQL Version8.0.208.0.20RAM8GB8GBSSD140GB115GBDeployment TypeStandaloneStandaloneRegionSF03SF03SupportIncludedBusiness-level support included with account sizes over $500/monthMonthly Price$120$120

As you can see above, ScaleGrid and DigitalOcean offer the same plan configurations across this plan size, apart from SSD where ScaleGrid provides over 20% more storage for the same price.

To ensure the most accurate results in our performance tests, we run the benchmark four times for each comparison to find the average performance across throughput and latency over read-intensive workloads, balanced workloads, and write-intensive workloads.

Throughput
In this benchmark, we measure MySQL throughput in terms of queries per second (QPS) to measure our query efficiency. To quickly summarize the results, we display read-intensive, write-intensive and balanced workload averages below for 150 threads for ScaleGrid vs. DigitalOcean MySQL:

ScaleGrid MySQL vs DigitalOcean Managed Databases - Throughput Performance Graph

For the common 150 thread comparison, ScaleGrid averages almost 40% higher throughput over DigitalOcean for MySQL, with up to 46% higher throughput in write-intensive workloads.

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Country State City Dropdown list in PHP MySQL PHP

Here, i will show you how to populate country state city in dropdown list in php mysql using ajax.

Country State City Dropdown List in PHP using Ajax

You can use the below given steps to retrieve and display country, state and city in dropdown list in PHP MySQL database using jQuery ajax onchange:

• Step 1: Create Country State City Table
• Step 2: Insert Data Into Country State City Table
• Step 3: Create DB Connection PHP File
• Step 4: Create Html Form For Display Country, State and City Dropdown
• Step 5: Get States by Selected Country from MySQL Database in Dropdown List using PHP script
• Step 6: Get Cities by Selected State from MySQL Database in DropDown List using PHP script

https://www.tutsmake.com/country-state-city-database-in-mysql-php-ajax/

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How to use highchart in php with example

Highchart provides feature to draw different type of charts in our web application. Here, in this example i will let you know that how to use highchart in php application.

In this example, we will create chart using php and mysql. Actually highchart provides javascript library to create charts. We will only need to implement that library in our application.

We will need some data to generate chart, so here we will use mysql database and database query to fetch data from database.

So basucally here we will leran to implement simple dynamic column chart using highcharts library in php and ofcourse will use mysql database.

For for that, first thing we will need to create a database and tables where we will put some data. So for full example let’s follow the steps as given below.

Step 1: Create Database

Here for example, i will create a database named shopping and under this database we will need to create some tables, here i will create only two table one is to stroe customers information and another to store orders.

So run the following query in your query window.

Create customers table

CREATE TABLE IF NOT EXISTS `customers` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `name` varchar(30) NOT NULL,

  `email` varchar(30) NOT NULL,

  `phone` varchar(15) NOT NULL,

  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,

  PRIMARY KEY (`id`)

) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=10 ;

Now you will to put some data into these two tables. You can put any data accoring to the column and your need. After putting data we can be able to show the chart according the the data.

Step 2: Create database configuration

Now we will need to create configuration file. So let’s create a new db configuration file **db_config.php **and put the following code into this file.

db_config.php

<?php
  $dbHost = "localhost";
  $dbDatabase = "shopping";
  $dbUser = "root";
        $dbPassword = ""; 

  $mysqli = mysqli_connect($dbHost, $dbUser, $dbPasswrod, $dbDatabase);
?>

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