Introduction to programming (PHP)
Part 0 - Program
We will offer every day of the reading, activities / exercises and resources. This is described in the corresponding parts.
This first part describes what we expect of you today.
1 - Be curious!
See section "Playback".
2 - Do activities in order and do them
And do not hesitate to go further if and only if you need it time and as you go well.
You will gain knowledge over your advancement activities. Use them to solve problems from a maximum of exercise routines that we propose.
3 - Widen your social networks and be curious (repeat)!
Remember to share your findings with others via Slack!
Part 1 - Reading
Understand what constitutes programming! (3 min video)
Short video introduction to online courses. Always helpful. But, the rest of the videos is expensive.
Https://www.video2brain.com/fr/tuto/en-quoi-consiste-la-programmation
Part 2 - Activities
PHP: the basics
PHP is a powerful tool, it is used for the development of sites worldwide. With Php a site becomes dynamic, ie that the pages can be generated by the user, the language, language etc.
After the first two parts of the course: Part 1 - The basics of PHP and Part 2 - Transmit data page to page, you will realize. Minimum 2 exercises in the categories "PHP Introduction", "Loops", "Tables and blocks".
After Part 3 - Store information in a database do the exercises of the category "PHP / MySQL".
(For the years see Part 3 - Exercises that is in this document).
https://openclassrooms.com/courses/concevez-votre-site-web-avec-php-et-mysql
PHP / MySQL
The real interest of a type of backend language like PHP is to manage data (store, reproduce, process, etc..).
For example, for a contact form for a website it would be nice to store some information previously returned share.
In order to store and retrieve data from a database is used Data.
Part 3 - Exercises
What to do after the "Part 2 - Transmit data from page to page"
To start, use a display page that retrieves data revenue per user and data processing page.
Category: Introduction PHP
Exercise 1 - Basket calculation
Calculate the total price of a basket. The basket have 3 products
different. For each product, leave the option to enter the price
(excluding tax), the VAT rate (percentage), and quantity.
Exercise 2 - Compare prices
Compare prices 4 products and display the name of the cheaper product
and the name of the most expensive product. Give the opportunity to return the
product name and price.
Exercise 3 - The bank account
You must view the status of your bank account. If it is negative,
you have displayed "Deficit", if it's to 0, you have displayed "In
balance" and if positive you have displayed "Credited". Let the
ability to enter the account status.
Exercise 4 - Number of days in a month
Display the number of days in a month. Months are selected from
a select box. We consider in this exercise that the month of
February always has 28 days.
Exercise 5 - Validate a date
Confirm the anniversary date back by a user. A date
valid must be of the form "mm/dd/yyyy" ie "15/9/2019".
Exercise 6 - Alternative parking
In a street where the alternate parking practice, from 1 to 15
month, you park on the side of houses with an odd number, and the rest
of the month, it is the other side station.
Let the opportunity to choose the date and house number
before which you parked, then view if you are well
parked or not.
Category: Loops
Exercise 1 - Display the first n digits
The user enters two numbers corresponding to the beginning and at the end
a range of numbers.
You must show all the numbers in this range respecting rules below:
- Numbers must be displayed in list form
- The even numbers are blue
- Odd numbers are orange
- The numbers that are perfect squares are bold
Note:
The range of numbers must be positive numbers
(Greater than 0)
Exercise 2 - Maximum numbers
10 Display text fields. The user will fill them with numbers Of his choice. You must display the greatest number.
Exercise 3 - suites Generation
On a range of numbers from 0 to 100, view the suites below in
different blocks:
- a) A series of numbers with "The not growing":
1, 2, 4, 7, 11, 16, ...- b) A so-called many more "lame":
1, 2, 4, 5, 7, 8, 10, 11, ...- c) The Fibonacci sequence:
0, 1, 1, 2, 3, 5, 8, 13, 21, ...Exercise 4 - Numerology
Convert your name and first name in a number of the principle of numerology, each letter has a weight. e.g.:
A = 1, B = 2, C = 3, etc..Show the weight of your first name and weight of your name. For example if your name is Bob, this gives:
B = 2, O = 15, B = 2 so the weight is 2 + 15 + 2 = 19Exercise 5 - Game of the range
Simulate the game of the range. This game is to try to discover
any number between 1 and 100 inclusive, drawn by
computer (primitive rand(min, max) returns an integer between min
and max). The user is entitled to a maximum of eight trials. With each test
you must display a code message "number given too small" or
"number given too big". In conclusion, is
"bravo, you found in [number] test(s)" or
"sorry, the number was [value]".
Category: Tables
Exercise 1 - Sum
Write an algorithm that calculates and displays the sum of the integers a
board.
Exercise 2 - Maximum and minimum
Write an algorithm that displays the largest and smallest
number in an array of integers.
Exercise 3 - Number of array elements
Write an algorithm that displays the number of items there are in
a painting.
Exercise 4 - Largest gap
An algorithm that calculates the largest gap between two integers
consecutive in a table.
Exercise 5 - Table ordered?
Write an algorithm that displays "true" if an array of integers is ordered (strictly) increasing the values, or "false" if not not.
Exercise 6 - Occurence count
Write an algorithm that displays for each digit in the number
many times it appears in a number. Thus, for the number
10502851125, the display will mention that the number 0 appears 2 times, 1
appears 3 times, 2 times appears 2, 5 appears 3 times and 8 appears one
times (the display will not refer to the numbers
do not appear).
"Blocks and sort"
Exercise 1 - The Caesar cipher
Since ancient times, politicians, soldiers, men business seeking to keep secret the important messages they should send. The emperor Caesar used a technique (a one says encryption) which carries now his name replace each letter of message with the letter that is k position later in the alphabet (Cyclically).
Example: If k is 2, then the clear text "CESAR" becomes "EGUCT"
when it is encrypted and the text "heck" becomes "BWV".
Of course, it is necessary that the sender and receiver are
agreed on the value of k.
You must allow the home user a text to be
encrypted to a ciphertext to be decrypted and choose the fill
k value.
Exercise 2 - Validity of date
Resume validation algorithm developed to date in the part "Control Structures" and make it modular. Which means you will have several methods in your code:
- A function that verifies the validity of the day. She will receive setting the day and return a boolean ("true" if the day is valid, otherwise "false");
- A function that verifies the validity of the month (in number, 1 at 12). She will receive parameter in the month and return a boolean ("true" if the month is valid, otherwise "false");
- A function that verifies the validity of one year. She will receive setting the year and return a boolean ("true" if the year is valid, otherwise "false");
- A function that uses the previous three to check that Date is invalid. This function will receive as parameter the day, month and year, each in the form of an integer.
Will display "true" if the user-encoded date is valid, otherwise you will display "false".
Warning ! We will not consider leap years in this exercise.
Exercise 3 - Alternating parking with license plate
Repeat the exercise "Alternative parking". Now, in addition
previous constraints to park a car must
have an even number of 1 to 15 and an odd number the rest of the month.
Add a field to enter the license plate number. We
take into account that the new license plates.
eg AA 555 ZZ
Category: PHP / MySQL
Create a vendor database using phpMyAdmin.
Exercise 1 - Identity
In the database of vendor create the table
user. This table will have the fields: id,
password.
Add users to the table through the interface
phpmyadmin.
Create a form to allow the user to enter his username and password.
Create another page that checks if the couple username and password passes, returned by the user is valid. Display the message "Welcome" if the user is valid and "Password incorrect password or username" otherwise.
Exercise 2 - Vendor
In the database vendor, create a table named vehicle.
This vehicle will table fields as: id, name, color, brand,
consumption, power, price.
We will interact with these databases.
First, create the form to add a vehicle in the database.
Create a page that displays, in a table all the information vehicles.
Implement functionality to allow the removal of a vehicle.
[For the brave] Challenge - Directory reorganization
For the last year, we give you some instructions, no runs, this is for you to get by for a solution that works and build a clean code, readable, modular, reusable.
Write a program that rearranges the elements of a directory of your machine.
It will store the files by extensions in one folder. By
example all .mp3 will be stored in the "mp3" folder,
all files. .odt will be stored in the "odt" folder.
Resources
- PHP documentation: http://php.net
- PDO Cheat Cheets: http://www.mustbebuilt.co.uk/2012/10/16/pdo-cheatsheet/
The scope of a variable
The variables have different scopes. Each variable exists in a context.
Http://php.net/manual/fr/language.variables.scope.php
In order to make the relationship between tables must be used
system primary key and foreign key:
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent