Latest PHP Classes blog posts

How to Help the EverSQL Tool Optimizing MySQL SQL Queries More Efficiently by Passing It Your MySQL Database Metadata - 4 minutes - Lately in PHP Podcast Episode 93 Part 5

By Manuel Lemos

The EverSQL tool is excellent for suggesting optimizations for SQL queries for your applications that use MySQL.

That tool must first obtain the structure of your database tables to suggest good optimizations. You can get that structure by executing a SQL query that extracts the database metadata.

Read this article, watch a 4-minute video, or listen to part 4 of episode 93 of the Lately in PHP podcast to learn how to extract your MySQL database metadata to help the EverSQL tool to optimize your application SQL queries for free.

Introduction on How to Use the EverSQL MySQL Query Optimizer Tool for Free - 3 minutes - Lately in PHP Podcast Episode 93 Part 4

By Manuel Lemos

When you want to optimize SQL queries to optimize an application that uses MySQL, you can use "manual" methods. These methods require good SQL query optimization knowledge. If you need to optimize many SQL queries, doing it "manually" may also take time.

One way to optimize SQL queries without requiring you to learn so much about optimization is to use a SQL query optimization tool. Optimization tools also take you much less time to optimize many queries than if you try manually.

Read this article, watch a 3-minute video, or listen to part 4 of episode 93 of the Lately in PHP podcast to learn how to use a free tool to optimize MySQL SQL queries without much knowledge and faster than if you try to do it manually.

How to Use Simple MySQL Monitoring Tools for Free to Find the Slowest Queries that You Should Optimize First - 2 minutes - Lately in PHP Podcast Episode 93 Part 3

By Manuel Lemos

When you want to optimize the performance of a MySQL-based application, you should try to optimize first the slowest queries that affect the application's performance.

The MySQL slow query log file provides a list of slow queries as they happen. So you need to monitor that file to determine the most critical slow SQL queries you need to optimize first.

Read this article, watch a 2-minute video, or listen to part 3 of episode 93 of the Lately in PHP podcast to learn how to use a free tool to monitor the MySQL slow query log and find the slowest SQL queries.

How to Find MySQL Slow Queries in a Production Server by Activating the Slow Query Log - 2 minutes - Lately in PHP Podcast Episode 93 Part 2

By Manuel Lemos

When you want to optimize a MySQL database application in production, you should figure out the slowest queries in that environment.

Enabling the MySQL slow query log can help you figure out the slowest SQL queries to optimize first. You can do that in a production environment, but you need to take extra care with how you enable the slow query log to avoid causing harm to the application.

Read this article, watch a 2-minute video, or listen to part 2 of episode 93 of the Lately in PHP podcast to learn how to enable the MySQL slow query log in a production environment in a safe way.

Find MySQL Slow Queries by Activating the Slow Query Log - 7 minutes - Lately in PHP Podcast Episode 93 Part 1

By Manuel Lemos

One of the factors that may make a Web application slow is the speed of execution of database queries executed by the application back-end code.

If you optimize the database queries that are the slowest, it may make a lot of impact on the speed of an application.

The first step in optimizing the slowest database queries is to find which are the slowest queries. Using MySQL as the database server, you can find the slowest queries by activating the slow query log.

Read this article, watch a 7-minute video, or listen to part 1 of episode 93 of the Lately in PHP podcast to learn how to enable the MySQL slow query log.

How to Update PHP Version Using Methods and Tools the PHP Community Uses - 3 minutes - Lately in PHP Podcast Episode 92 Part 10

By Manuel Lemos

Every time you need to solve a problem, you may realize there may be several approaches to solve that problem. Each way has its advantages and disadvantages.

This fact shows why it is helpful to learn from other developers what approach they use to solve a problem that you also want to solve.

Read this article, watch a 3-minute video, or listen to part 10 of episode 92 of the Lately in PHP podcast to learn about other methods and tools different developers use to upgrade PHP versions.

How to Update PHP Version Using Methods and Tools the PHP Community Uses - 3 minutes - Lately in PHP Podcast Episode 92 Part 10

By Manuel Lemos

Every time you need to solve a problem, you may realize there may be several approaches to solve that problem. Each way has its advantages and disadvantages.

This fact shows why it is helpful to learn from other developers what approach they use to solve a problem that you also want to solve.

Read this article, watch a 3-minute video, or listen to part 10 of episode 92 of the Lately in PHP podcast to learn about other methods and tools different developers use to upgrade PHP versions.

How to Use a PHP Monitoring System with Email Notification to Verify a Version Upgrade - 3 minutes - Lately in PHP Podcast Episode 92 Part 9

By Manuel Lemos

When you make changes to a site or another aspect of your site production environment, there is always a chance that some parts may not work well after you complete the changes due to unexpected consequences.

Often these consequences cause your site's PHP code to trigger errors. These errors may start appearing after you do a PHP version upgrade.

One way to determine if there were errors after you made production environment changes is to monitor PHP errors and send emails for the new PHP errors that started to appear.

Read this article, watch a 3-minute video, or listen to part 9 of episode 92 of the Lately in PHP podcast to learn how to monitor your PHP errors quickly and be notified by email, so you can fix the environment that causes the errors.

How to Verify If a PHP Version Upgrade Really Succeeded - 2 minutes - Lately in PHP Podcast Episode 92 Part 8

By Manuel Lemos

Having tests to verify if a PHP version upgrade succeeded is excellent, but unfortunately, that is not enough because there are always aspects of the consequences of the version upgrade that we are not fully aware of initially.

So it is expected that some fixes may be necessary after a PHP version upgrade. Still, you may not even be aware of all the fixes you may need to do after the upgrade.

This situation is where other human beings can help you complete the quality control of the PHP version upgrade process.

Read this article, watch a 2-minute video, or listen to part 8 of episode 92 of the Lately in PHP podcast to learn how you can use the help of other human beings to assure the control of the quality of your applications after a PHP version upgrade.

The Right Order to Execute the Steps to Upgrade to a New PHP Version - 2 minutes - Lately in PHP Podcast Episode 92 Part 7

By Manuel Lemos

One of the reasons why certain version upgrades went wrong is that you do the version upgrade process steps in the incorrect order.

You can determine the correct order by the more critical steps you need to do first because you can only do the following steps when you complete the crucial steps.

Read this article, watch a 2-minute video, or listen to part 7 of episode 92 of the Lately in PHP podcast to learn the correct order of the steps to perform a PHP version upgrade.