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Introduction to PHP Strings and Basic Operations with Debugging Tips**

This chapter provides a comprehensive introduction to strings in PHP, exploring how to manipulate and combine them using various functions. Learn to format numbers and understand constants while enhancing your coding skills. It includes practical scripts with detailed explanations and URLs for deeper insights into the PHP functions used. Additionally, essential debugging practices are discussed to ensure your PHP scripts run smoothly, including how to check your PHP version and set `display_errors` for easier troubleshooting.

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Introduction to PHP Strings and Basic Operations with Debugging Tips**

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  1. Chapter 1 Introduction to PHP Part 1

  2. strings.php • Script 1.6 on page 19 • http://cscdb.nku.edu/csc301/frank/ch01/strings.php • ch01\strings.php

  3. concat.php • Script 1.7 on page 21 • http://cscdb.nku.edu/csc301/frank/ch01/concat.php • ch01\concat.php

  4. numbers.php • Script 1.8 on page 24 • http://cscdb.nku.edu/csc301/frank/ch01/numbers.php • ch01\numbers.php

  5. Arithmetic Operations

  6. number_format • http://php.net/ • number_format

  7. constants.php • Script 1.9 on page 27 • http://cscdb.nku.edu/csc301/frank/ch01/constants.php • ch01\constants.php

  8. constants.php • Script 1.10 on page 30 • http://cscdb.nku.edu/csc301/frank/ch01/quotes.php • ch01\quotes.php

  9. Debugging • Make sure you’re always running PHP scripts through a URL. • http://something.php • Know what version of PHP you’re running. • http://cscdb.nku.edu/csc301/frank/ch01/constants.php

  10. Debugging • Make sure display_errors is on. • http://cscdb.nku.edu/csc301/frank/info.php • CTRL+F (Edit->Search) display_errors • Take a break!

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