PHP

PHP is easy. You don’t have to know type of variable, before you use it. But sometimes it’s very problematic especially when we are dealing with JSON.

Mailgun is well known service provider which allows you send emails via their API or just using regular SMTP servers. SMTP protocol is bit slower, but it’s so common that you can use it everywhere. Each modern application allows you define your own SMTP server to send emails. But… we love speed, SMTP from it’s nature it’s bit slower then regular API call.

From many reasons I was always using  SQL_CALC_FOUND_ROWS to get total number of records, when I was running limited query. Never especially thought about it, until i had some super performance issues with one of my projects. Obviously after quick profiling and googling  i found people complaining about FOUND_ROWS() low performance . I was not aware how big impact it was until I tested.

From time to time we could breach  max_input_vars restriction. Which basically limitation for server which allows only limited number of input server to reach out server. Usually this number is around 1000. In this short tutorial I will describe, how to easily avoid this problem.

PHP 7.0 it’s already a while on the market. Let’s install it on EC2 instance.  Here you can find a quick recipe: