Sean Robertson

Sean Robertson

1548900083

How to connect PHP to MySQL in private subnet VPC

Hi I have two EC2 instances, one in a public subnet and one in a private subnet in my VPC.

Web server (EC2) - public subnet
MySQL database (EC2) - private subnet

I am not using AWS RDS for the database, I am using EC2.

Here is my PHP code:

define ("DB_HOST", "");
define ("DB_USER", "dbuser");
define ("DB_PASS",'dbpassword');
define ("DB_NAME","dbname");
try {
    $dsn = "mysql:dbname=".DB_NAME.";host=".DB_HOST;
    $dbh = new PDO($dsn, DB_USER, DB_PASS);
    return $dbh;
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}

What do I put in DB_HOST if the EC2 instance is on a private subnet?

#php #mysql #aws

What is GEEK

Buddha Community

What do I put in DB_HOST if the EC2 instance is on a private subnet?
The Private IP address of the Database EC2 server.

Joe  Hoppe

Joe Hoppe

1595905879

Best MySQL DigitalOcean Performance – ScaleGrid vs. DigitalOcean Managed Databases

HTML to Markdown

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.

#cloud #database #developer #digital ocean #mysql #performance #scalegrid #95th percentile latency #balanced workloads #developers cloud #digitalocean droplet #digitalocean managed databases #digitalocean performance #digitalocean pricing #higher throughput #latency benchmark #lower latency #mysql benchmark setup #mysql client threads #mysql configuration #mysql digitalocean #mysql latency #mysql on digitalocean #mysql throughput #performance benchmark #queries per second #read-intensive #scalegrid mysql #scalegrid vs. digitalocean #throughput benchmark #write-intensive

I am Developer

1597487472

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/

#country state city drop down list in php mysql #country state city database in mysql php #country state city drop down list using ajax in php #country state city drop down list using ajax in php demo #country state city drop down list using ajax php example #country state city drop down list in php mysql ajax

Sean Robertson

Sean Robertson

1548900083

How to connect PHP to MySQL in private subnet VPC

Hi I have two EC2 instances, one in a public subnet and one in a private subnet in my VPC.

Web server (EC2) - public subnet
MySQL database (EC2) - private subnet

I am not using AWS RDS for the database, I am using EC2.

Here is my PHP code:

define ("DB_HOST", "");
define ("DB_USER", "dbuser");
define ("DB_PASS",'dbpassword');
define ("DB_NAME","dbname");
try {
    $dsn = "mysql:dbname=".DB_NAME.";host=".DB_HOST;
    $dbh = new PDO($dsn, DB_USER, DB_PASS);
    return $dbh;
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}

What do I put in DB_HOST if the EC2 instance is on a private subnet?

#php #mysql #aws

I am Developer

1599478097

Ajax Live Data Search using jQuery PHP MySQL

simple search code in php with demo. Here, i will show you how to create live search in PHP MySQL using jQuery ajax from database.

PHP MySQL Ajax Live Search

Use the following simple steps and create ajax live search PHP MySQL from database:

  1. Connecting Database File
  2. Create an ajax live search form PHP
  3. Create a PHP Script for Live Search From DB using Ajax

https://www.tutsmake.com/ajax-php-mysql-search-example/

#live search in php mysql ajax with examples #simple search code in php with demo #php mysql search form example #php code for search data from database #source code search php

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