PHP 8 for Absolute Beginners: Basic Website and Web Application Development

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

J. Lengstorf et al.PHP 8 for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-8205-2_9

9. Basic Blog: Images and Authentication

Jason Lengstorf¹  , Thomas Blom Hansen² and Steve Prettyman³

(1)

No 392, Portland, OR, USA

(2)

Kirke Saaby, Denmark

(3)

Palm Bay, FL, USA

 

Objectives

After completing this chapter, you will be able to

• Delete entries from related tables in a database

• Create a dynamic select drop-down box

• Hash passwords using password_hash()

• Determine the size of a string using strlen()

• Validate a string using preg_match(), regular expressions, and filter_var()

• Authenticate user access using password_hash and password_verify()

• Secure a web application using ...