Jump to content
Larry Ullman's Book Forums

Search the Community

Showing results for tags 'php7'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Single Editions
    • Modern Javascript: Develop and Design
    • The Yii Book
    • Effortless Flex 4 Development
    • Building a Web Site with Ajax: Visual QuickProject
    • Ruby: Visual QuickStart Guide
    • C++ Programming: Visual QuickStart Guide
    • C Programming: Visual QuickStart Guide
    • Adobe AIR: Visual QuickPro Guide
  • PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide
    • PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide (5th Edition)
    • PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide (4th Edition)
    • PHP 6 and MySQL 5 for Dynamic Web Sites: Visual QuickPro Guide (3rd Edition)
    • PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide (2nd Edition)
    • PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide (1st Edition)
  • PHP for the Web: Visual QuickStart Guide
    • PHP for the Web: Visual QuickStart Guide (5th Edition)
    • PHP for the Web: Visual QuickStart Guide (4th Edition)
    • PHP for the Web: Visual QuickStart Guide (3rd Edition)
    • PHP for the World Wide Web: Visual QuickStart Guide (2nd Edition)
    • PHP for the World Wide Web: Visual QuickStart Guide (1st Edition)
  • Effortless E-commerce with PHP and MySQL
    • Effortless E-Commerce with PHP and MySQL (2nd Edition)
    • Effortless E-Commerce with PHP and MySQL
  • PHP Advanced: Visual QuickPro Guide
    • PHP Advanced and Object-Oriented Programming: Visual QuickPro Guide (3rd Edition)
    • PHP 5 Advanced: Visual QuickPro Guide (2nd Edition)
    • PHP Advanced: Visual QuickPro Guide
  • MySQL: Visual QuickStart Guide
    • MySQL: Visual QuickStart Guide (2nd Edition)
    • MySQL: Visual QuickStart Guide (1st Edition)
  • Other
    • Announcements
    • Newsletter, Blog, and Other Topics
    • Forum Issues
    • Social

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Found 2 results

  1. Hello! Please explain to me how gender validations from scripts 2.3 differ from the nested one in script 2.4. I have this in 2.3 (updated with NULL coalescing operator while practicing Pursue section): $gender = $_REQUEST['gender'] ?? NULL; if ($gender == 'M') { $greeting = '<p><strong>Good day, Sir!</strong></p>'; } elseif ($gender == 'F') { $greeting == '<p><strong>Good day, Madam!</strong></p>'; } else { $gender = NULL; echo '<p class="error">Gender must be either "M" or "F"!</p>'; /* You may wonder how this last case may be possible, considering the values are set in the HTML form. If a malicious user creates their own form that gets submitted to your handle_form.php script (which is very easy to do), they could give $_REQUEST[‘gender’] any value they want. */ } and this in 2.4: if (isset($_REQUEST['gender'])) { $gender = $_REQUEST['gender']; if ($gender = 'M') { $greeting = '<p><strong>Good day, Sir!</strong></p>'; } elseif ($gender = 'F') { $greeting = '<p><strong>Good day, Madam!</strong></p>'; } else { $gender = NULL; echo '<p class="error">Gender must be either "M" or "F"!</p>'; /* You may wonder how this last case may be possible, considering the values are set in the HTML form. If a malicious user creates their own form that gets submitted to your handle_form.php script (which is very easy to do), they could give $_REQUEST[‘gender’] any value they want. */ } } else { // $_REQUEST['gender'] is not set. $gender = NULL; echo '<p class="error">You forgot to select your gender!</p>'; } It seems that these scripts do the same job, or I just can't figure out the difference, please help me to understand it. And also I want to if we could use NULL coalescing operator in script 2.4 some way. Thank you!
  2. Been studying your book for a while and noticed it is not too much different from the 4th edition. The book's using mysqli_ for database connection, and the php is still version 5.some. Meanwhile, php 7 has come to life and the pdo is ubiquitous nowadays. As well as MVC and more or less object oriented approach in general. Some books i know of (i'm not sure if i can mention them here) went through this and even their hands-on practice evolved from developing a simple CMS to an almost framework-like application. So, my question is: will you update your PHP & MySQL series?
×
×
  • Create New...