Fall 2011 PHP Class - Session 1
- 1. Beginning PHP Session #1 September 29, 2011 Josh Butts
- 2. Who Am I? Josh Butts Director of Development at Vertive Offers.com, CouponCodes.com, DailyDeals.com, Subscription.com, and about 25 others... Organizer of Austin PHP Zend Certified Engineer (PHP5 and Zend Framework) Follow me online: “jimbojsb” pretty much everywhere
- 3. What are we going to learn? LAMP Stack Variables Control Structures Functions MySQL Forms Basic Security
- 4. One small adjustment: No class on 10/20/11, as I’ll be speaking at Zendcon
- 5. Class Resources Google group for slides, questions, etc: http://groups.google.com/group/geekaustin-php Sample code & homework: https://github.com/jimbojsb/bgphp-2011
- 6. PHP Versions I’m using 5.3.6, but 5.2.0 or above will work for this class No one should be using PHP 4.x at this point
- 7. Where to get PHP? I recommend a package, especially for development XAMPP is popular, and generally works Zend Server CE is my preferred “one click” installer
- 8. Seriously, get a good editor Basic (Syntax highlighting) Windows: Notepad++, UltraEdit*, jEdit, KomodoEdit Mac: TextMate*, BBEdit*, jEdit, KomodoEdit Linux: gEdit, KomodoEdit IDE (I’d recommend this) All the good ones are cross platform Komodo IDE* Eclipse PDT Netbeans Zend Studio* (Eclipse PDT + Premium Features) PHPStorm* (My personal favorite, this is amazing software) *Not Free
- 9. The LAMP Stack Linux, Apache, MySQL, PHP LAMP powers a good bit of the internet Sites you know and love Yahoo! Facebook Wikipedia Wordpress.com Whitehouse.gov Flickr
- 10. General Concept
- 11. PHP + Apache Apache Browser PHP
- 12. PHP + CGI Browser Apache PHP
- 13. Hello World 3 easy ways to do this Many other, irrelevant ones Last way exploits “pass through” mode
- 14. PHP Files .php extension Can contain PHP, HTML, CSS, JavaScript, whatever (but this isn’t a good practice) Can be split into many smaller files Should be kept secure
- 15. PHP Tags Tells PHP when to start and stop processing code Open Tag <? and <?PHP Close Tag ?> - this is optional
- 16. Variables Store data - pretty much anything you can think of Text, numbers, arrays, objects, XML, MySQL data, etc ,etc ,etc Always start with a $ Can contain upper and lower case letters underscores ( _ ) cannot lead with a number ($3 is not valid) PHP is loosely typed...mostly
- 17. Code Comments Not executed // - comment one line /* */ - comment multiple lines # - also a comment, but deprecated
- 18. Operators
- 19. Booleans true or false, 1 or 0 ==, ===, >, <, ||, !
- 20. Arrays Arrays are still variables Associative and regular Can be multi-dimensional (only limited by memory) Many, many array functions php.net/arrays
- 21. Working With Regular Arrays
- 22. Working With Associative Arrays
- 23. More on Arrays Arrays, specifically associative arrays, are one of the most used features in PHP Arrays can store anything, including other arrays (because variables can store anything)
- 24. PHP Functions Built-in functions contain the bulk of PHP’s functionality Syntax: function_name($argument1, $argument2, ...) Always available
- 25. One More Thing... There’s homework It’s totally optional Designed to help you explore & extend what we cover in class PHP.net is your friend