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1. Secure PHP Login Script 2020 - Tutorial for a Complete Secure PHP Login System using MySQL with PDO Solution and a PHP Login Form to Set a PHP Login Session

Blog: PHP Secure Login and Registration package blog
Package: PHP Secure Login and Registration

Over time PHP has been adding features that promote the development of secure applications, as well deprecated or removed features that made it easy to write insecure code.

Read this tutorial to learn how to create a modern login and registration system that takes advantage of PHP security-focused features and uses jQuery to send AJAX requests and Bootstrap to provide a fast and nice user interface that can work regardless if you use other frameworks or not.

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1. Analyzing Site Attacks with the PHP Web Application Firewall Proxy

Blog: PHP Web Application Firewall package blog
Package: PHP Web Application Firewall

PHP Web Application Firewall is a package than can block malicious requests by acting as a proxy script. It uses a white list to let Webmasters determine which requests are valid or not for their applications.

Read this short tutorial to quickly learn how this package can help protect your site against unexpected malicious requests.

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1. PHP User Validation using Event Sequences

Blog: PHP Secret URL Path package blog
Package: PHP Secret URL Path

It is standard practice to authenticate user from a user name and password pair.

If this information is compromised, you can provide an additional layer of security with a secret set of event sequences that the user has to follow to authenticate.

Read this tutorial to learn how to implement this solution in practice.

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1. How to Validate Email Blacklisting Disposable Temporary Addresses

Blog: Disposable Temporary Email Validator package blog
Package: Disposable Temporary Email Validator

Disposable email addresses are temporary addresses used by some people to access certain sites without using their real addresses.

Since these addresses prevent that the sites contact the users to send relevant information by email, it is useful for sites to prevent accepting this kind of addresses.

Read this article to learn how to validates temporary email addresses by blacklisting well known domains of disposable email address providers.

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1. How Can PHP Read PDF File Content and Extract Text from PDF using PHP - How Can PHP Extract Image from PDF and Search PDF Content using PHP PDFToText Class

Blog: PHP PDF to Text package blog
Package: PHP PDF to Text

Extracting text from individual pages or whole PDF document files in PHP is easy using the PdfToText class.

Read this article that is the first of a series that will teach you about the challenge of processing the PDF file format and how the PdfToText class can be used to extract text and images from it.

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1. Understanding Language Detection

Blog: PHP Language Detection Library package blog
Package: PHP Language Detection Library

There are several ways to detect what language text is written in and it is all made even more simple using a web service. The question is, how do they do it? This article will not only discuss using one of these web services but also look at how they do it.

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1. Encrypt Post Data PHP Solution without SSL - How to Encrypt Form Data Before Submit

Blog: PHP Form Encryption package blog
Package: PHP Form Encryption

Encryption is not just for large corporations. Small businesses and nonprofit organizations also need to protect their information, not just due to commercial or industrial concerns, but also about personal data that should be protected to enforce laws in many countries.

However, the ideal solution, which is to use SSL/TLS encryption is not always available in all scenarios.

Read this tutorial to learn how to implement encrypted form data exchange without depending on the availability of SSL/TLS connections.

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1. PHP VAT Calculation for any EU Country

Blog: PHP VAT Number Check package blog
Package: PHP VAT Number Check

As you may know, VAT is a tax used in European Union countries. It is added to the price of products and services, but the actual percentage of the tax varies from country to country, as well from product to product or service to service.

If you or your clients need to add value-added taxes (VAT) within the European Union or validate VAT numbers, then there is a service available to get the latest rates for each country including rates within reduced rate categories.

You can also use the service to calculate VAT compliant prices for you, or reverse the calculation to get an amount without VAT if it has already been included.

Read this article to learn more about how you can use this service to help determine the VAT taxes to use on different purchases using PHP applications.

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11. Improving the Protection of your PHP OAuth Client Application Against User Account Leaks

Blog: PHP OAuth Library package blog
Package: PHP OAuth Library

When your application needs to call an API with tokens obtained using OAuth, if your application OAuth credentials are stolen, it becomes a security problem that may cause you big headaches.

Read this tutorial to learn about good security practices to minimize the possible damages to your application if your developer user account details in the API site get stolen.

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2. Generating SQL to Execute the Installation of a Database schema from JSON definition

Blog: Scripd package blog
Package: Scripd

As explained in the first part of this article, it was presented the Scripd library as a means to generate SQL to execute actions to install database schemata.

Read this article to learn how to define common database structures in JSON format to install the schema using DDL SQL generated by Scripd library.

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