PHP Programming Homeworks

The assignment consists of 15 parts, each requiring the creation of a PHP program or class that demonstrates various concepts and techniques. The topics covered include superglobals, reflection, object functions, error handling, file operations, form input validation, file uploads, CURL requests, CSV file processing, design patterns, and building custom libraries using namespaces and autoloading.

Homework 7
Create example and explain the purpose of each superglobal, your explanation should be
shown in code comments. You need to create a website on the AFS to show what you did
and push it to GitHub.
http://php.net/manual/en/language.variables.superglobals.php
Homework 8
Read about reflection and object functions and pick 5 functions that demonstrate object
functions and retype the tutorial about reflection. You need to create a website on the AFS
to show what you did and push it to GitHub. Remember that you should submit links on the
Moodle.
https://code.tutsplus.com/tutorials/reflection-in-php--net-31408
http://php.net/manual/en/book.reflection.php
http://php.net/manual/en/language.oop5.php
Note:
read this article about pass by value and reference and provide an example in your code:
http://www.adp-gmbh.ch/php/pass_by_reference.html
and
http://www.elated.com/articles/php-references/
Homework 9
Create a class to write a csv file class that handles exception for file not found error and
unable to write file error.
https://www.tutorialspoint.com/php/php_error_handling.htm
https://www.sitepoint.com/error-handling-in-php/
http://php.net/manual/en/language.exceptions.php
This will help with file operations:
http://php.net/manual/en/ref.filesystem.php
You need to create a website on the AFS to show what you did and push it to GitHub

Homework 10
Read this tutorial and develop a class to sanitize your form input and a class to validate
form input that contains at least one method for validating an email address.
https://code.tutsplus.com/tutorials/sanitize-and-validate-data-with-php-filters--net-2595
Read this and the comment is really the article that is important that explains a validation
class:
http://codereview.stackexchange.com/questions/18814/php-validation-class
Submit a link to your github repository and a link to the working code on AFS.
Homework 11
Please complete this tutorial by making a form and PHP program that can save files to an
upload directory on AFS:
https://www.sitepoint.com/file-uploads-with-php/
You need to set the permissions on AFS to allow file saving.
https://web.njit.edu/info/afs.perms.html
Submit a link to your github repository and a link to the working code on AFS.
Homework 12
Please read this tutorial and practice making get and post curl requests.
http://hayageek.com/php-curl-post-get/
Read this article:
http://thisinterestsme.com/php-error-handling-curl/
To complete this assignment, you need to create a class that can make get and post
requests using curl, which also includes error handling.
Submit a link to your github repository and a link to the working code on AFS.
Homework 13

For this homework, you need to create a program to read a CSV file and output the
contents of the CSV file as a JSON output. Your CSV file should have a field for make,
model, and year of the car. Your program should be able to input a URL parameter to only
return values for cars of a specific make. You should have at least 3 different makes of cars
and 10 records in your CSV file. The first row of the CSV file should contain the field
names.
i.e. http://web.njit.edu/~kwilliam/cars.php?make=ford should return all of the ford cars in
your CSV file.
Next
Create a program that can make a CURL request to the program you just created and is
able to write the JSON response to a CSV file.
You should include error handling for file not found and file not writable, so you should use
your code from the previous assignment on exception handling.
Submit a link to your github repository and a link to the working code on AFS
Homework 14
For this project you should read your text book on design patterns and create 5 mini
programs that demonstrate the use of 3 different design patterns working together. You
should write comments that explain how you are using these together. You could use the
same pattern more than once, but each example should be different.
You should make sure that you include the following patterns: factory, decorator, observer,
strategy, and singleton.
Here are some code examples of design patterns:
http://www.fluffycat.com/PHP-Design-Patterns/
Submit a link to your github repository and a link to the working code on AFS
Homework 15
Now that you have learned a lot about PHP, it is time to learn how to build your own
libraries. For this project you must read the following tutorials:
https://www.sitepoint.com/php-53-namespaces-basics/
https://www.sitepoint.com/php-namespaces-import-alias-resolution/
https://www.sitepoint.com/how-to-use-php-namespaces-part-3-keywords-and-autoloading/
https://www.sitepoint.com/autoloading-and-the-psr-0-standard/
Once you have read these articles, you should refactor your code from previous tutorials.
You should create classes with exception handling for file operations, curl operations, and a
class without exception handling for html element creation (table, link, etc...) Your libraries

should autoload and have namespaces. You should use abstract classes and concrete
classes where appropriate.
Submit a link to your github repository and a link to the working code on AFS.