├── README.md
├── arrays.php
├── conditionals.php
├── dates.php
├── functions.php
├── iterators.php
├── maths.php
├── operators.php
├── phpinfo.php
├── print.php
├── strings.php
└── types.php


/README.md:
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 1 | `#php` `#basics` `#master-in-software-engineering`
 2 | 
 3 | # PHP Basics <!-- omit in toc -->
 4 | 
 5 | <p>
 6 |   <img alt="Version" src="https://img.shields.io/badge/version-1.0-blue.svg?cacheSeconds=2592000" />
 7 | </p>
 8 | 
 9 | > In this project you will learn the basic notions of the famous PHP language which is so used in the world of web development.
10 | >
11 | > What distinguishes PHP from other languages ​​such as Javascript is that the code is executed on the server, generating HTML and sending it to the client.
12 | 
13 | ## Index <!-- omit in toc -->
14 | 
15 | - [Requirements](#requirements)
16 | - [Repository](#repository)
17 | - [Technologies used](#technologies-used)
18 | - [Project delivery](#project-delivery)
19 | - [Resources](#resources)
20 | 
21 | ## Requirements
22 | 
23 | - Learn the basics to program in PHP
24 | - Understand what a server-side language is and what it is used for
25 | 
26 | ## Repository
27 | 
28 | First of all you must fork this project into your GitHub account.
29 | 
30 | To create a fork on GitHub is as easy as clicking the “fork” button on the repository page.
31 | 
32 | <img src="https://docs.github.com/assets/images/help/repository/fork_button.jpg" alt="Fork on GitHub" width='450'>
33 | 
34 | ## Technologies used
35 | 
36 | \* PHP
37 | 
38 | ## Project delivery
39 | 
40 | To deliver this project you must follow the steps indicated in the document:
41 | 
42 | - [Submitting a solution](https://www.notion.so/Submitting-a-solution-524dab1a71dd4b96903f26385e24cdb6)
43 | 
44 | ## Resources
45 | 
46 | - [What can PHP do?](https://www.php.net/manual/es/intro-whatcando.php)
47 | - [Sample guide for README](https://gist.github.com/Villanuevand/6386899f70346d4580c723232524d35a)
48 | - [XAMPP](https://www.apachefriends.org/es/index.html)
49 | - [How to install XAMPP on Windows](https://www.youtube.com/watch?v=h6DEDm7C37A)
50 | - [What is a web server?](https://www.youtube.com/watch?v=Yt1nesKi5Ec)
51 | - [Web server basics](https://www.youtube.com/watch?v=3VqfpVKvlxQ)
52 | 


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/arrays.php:
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 1 | <?php
 2 | 
 3 | //Define a simple array composed of text strings
 4 | $array = array("Hello ", "Assembler ", "Team!");
 5 | print_r($array);
 6 | echo "<br>";
 7 | 
 8 | //Define a simple array consisting of whole numbers and decimal numbers
 9 | $array = array(1, 1.1, 2, 3.14);
10 | print_r($array);
11 | echo "<br>";
12 | 
13 | 
14 | //Define a multidimensional array
15 | $people = array(
16 |     "Víctor" => array(
17 |         "name" => "Víctor",
18 |         "age" => "27",
19 |         "country" => "Spain"
20 |     ),
21 |     "Juan" => array(
22 |         "name" => "Juan",
23 |         "age" => "25",
24 |         "country" => "Spain"
25 |     ),
26 |     "Pedro" => array(
27 |         "name" => "Pedro",
28 |         "age" => "30",
29 |         "country" => "Spain"
30 |     )
31 | );
32 | print_r($people);
33 | echo "<br>";
34 | 
35 | 
36 | //Execute the function that allows to obtain the length of an array
37 | $array = array("Hello ", "Assembler ", "Team!");
38 | $arrayLength = count($array);
39 | print $arrayLength . "<br>";
40 | 
41 | //Execute the function that allows to obtain the combination of two arrays
42 | $array1 = array("Hello ", "Assembler ", "Team!");
43 | $array2 = array("How ", "are ", "you?");
44 | $array3 = array_merge($array1, $array2);
45 | print_r($array3);
46 | echo "<br>";
47 | 
48 | 
49 | //Execute the function that once is given an array return the last element of it
50 | $array = array("Hello ", "Assembler ", "Team!");
51 | $lastElement = end($array);
52 | print $lastElement . "<br>";
53 | 
54 | 
55 | //Execute the function that once is given an array add a new element to the array in question
56 | $array = array("Hello ", "Assembler ", "Team!");
57 | array_push($array, ":)");
58 | print_r($array);
59 | echo "<br>";
60 | 


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/conditionals.php:
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 1 | <?php
 2 | 
 3 | //Create a simple condition that evaluates whether the current day is Monday. Only in the case that the condition is met, it shows a message of “We are on Monday”.
 4 | $date = getdate()['weekday'];
 5 | 
 6 | if ($date == "Monday") {
 7 |     echo "We are on Monday";
 8 | } 
 9 | 
10 | 
11 | //Create a simple condition that evaluates whether the current month is October. If the condition is met, it shows a message of the type "We are in October". Otherwise, if this condition is not met, show the current month in words as it come from DateTime.
12 | $month = getdate()['month'];
13 | 
14 | if ($month == "October") {
15 |     echo "<br>"."We are in October";
16 | } else {
17 |     echo "<br>"."We are in ".$month;
18 | }
19 | 
20 | 
21 | //Create a double condition that evaluates:
22 | // If the current minute is less than 10. Displays a message of type "the current minute is less than 10", if the current minute is greater than 15, displays a message of the type "the current minute is more than 15". If you do not meet any of the two conditions above: Displays a message of the type "does not meet any conditions”
23 | $currentMinute = getdate()['minutes'];
24 | 
25 | if ($currentMinute < 10) {
26 |     echo "<br>"."the current minute is less than 10";
27 | } elseif ($currentMinute > 15) {
28 |     echo "<br>"."the current minute is more than 15";
29 | } else {
30 |     echo "<br>"."does not meet any conditions";
31 | }
32 | 
33 | 
34 | //Create a switch type control structure to display a different message depending on the current day of the week. 
35 | $day = getdate()['weekday'];
36 | 
37 | switch($day) {
38 |     case "Monday":
39 |         echo "<br>"."Today is Monday";
40 |         break;
41 |     case "Tuesday":
42 |         echo "<br>"."Today is Tuesday";
43 |         break;
44 |     case "Wednesday":
45 |         echo "<br>"."Today is Wednesday";
46 |         break;
47 |     case "Thursday":
48 |         echo "<br>"."Today is Thursday";
49 |         break;
50 |     case "Friday":
51 |         echo "<br>"."Today is Friday";
52 |         break;
53 |     case "Saturday":
54 |         echo "<br>"."Today is Saturday";
55 |         break;
56 |     case "Sunday":
57 |         echo "<br>"."Today is Sunday";
58 |         break;
59 |     default:
60 |         echo "<br>"."Not a valid day";
61 | }
62 | 
63 | 


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/dates.php:
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 1 | <?php
 2 | 
 3 | // Instance the Date Time class and then invoke the format method with the argument “Y-m-d” to show year-month-day
 4 | $date = new DateTime();
 5 | echo $date->format('Y-m-d'). "<br>";
 6 | 
 7 | 
 8 | //Get the current date in any format
 9 | $currentDate = getdate();
10 | print_r($currentDate);
11 | 
12 | //Get the current day
13 | $currentDay = getdate()['mday'];
14 | echo "<br>".$currentDay;
15 | 
16 | // Get the current month in numerical format (1-12)
17 | $currentMonth = getdate()['mon'];
18 | echo "<br>".$currentMonth;
19 | 
20 | //Get the current minute with leading zeros (00 - 59)
21 | $currentMinute = getdate()['minutes'];
22 | echo "<br>".$currentMinute;
23 | 


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/functions.php:
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 1 | <?php
 2 | 
 3 | //Create a function that given two numbers returns the sum of both
 4 | function sum($num1, $num2) {
 5 |     echo $num1 + $num2;
 6 | }
 7 | sum(2, 3);
 8 | echo "<br>";
 9 | 
10 | 
11 | //Create a function that given two numbers returns the multiplication of both
12 | function multiply($num1, $num2) {
13 |     echo $num1 * $num2;
14 | }
15 | multiply(2, 3);
16 | echo "<br>";
17 | 
18 | 
19 | //Create a function that given two numbers returns the division of both
20 | function divide($num1, $num2) {
21 |     echo $num1 / $num2;
22 | }
23 | divide(2, 3);
24 | echo "<br>";
25 | echo "<br>";
26 | 
27 | 
28 | //Create a function that, given two numbers and an operation (add, multiply or divide), returns the result of that operation.
29 | function operation($num1, $num2, $operation) {
30 |     if ($operation == "add") {
31 |         echo $num1 + $num2;
32 |     } elseif ($operation == "multiply") {
33 |         echo $num1 * $num2;
34 |     } elseif ($operation == "divide") {
35 |         echo $num1 / $num2;
36 |     }
37 | }
38 | operation(2, 3, "add");
39 | echo "<br>";
40 | operation(2, 3, "multiply");
41 | echo "<br>";
42 | operation(2, 3, "divide");
43 | echo "<br>";
44 | 
45 | 


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/iterators.php:
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 1 | <?php
 2 | 
 3 | //For loop
 4 | for ($i = 1; $i <= 10; $i++) {
 5 |     echo $i."<br>";
 6 | }
 7 | 
 8 | 
 9 | //foreach loop
10 | $array = array("Hello ", "Assembler ", "Team!");
11 | foreach ($array as $value) {
12 |     echo $value;
13 | 
14 | }
15 | 
16 | //while loop
17 | $i = 1;
18 | while ($i <= 10) {
19 |     echo "<br>".$i;
20 |     $i++;
21 | }
22 | 
23 | // do while loop
24 | $i = 1;
25 | do {
26 |     echo "<br>".$i;
27 |     $i++;
28 | } while ($i <= 10);


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/maths.php:
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 1 | <?php
 2 | 
 3 | //Define a variable whose value is the result of the function that returns an absolute value.
 4 | $x = -10;
 5 | $y = abs($x);
 6 | echo $y."<br>";
 7 | 
 8 | 
 9 | //Define a variable whose value is the result of the function that returns a rounded value to the next highest integer.
10 | $x = 10.5;
11 | $y = ceil($x);
12 | echo $y."<br>";
13 | 
14 | //Define a variable whose value is the result of the function that returns the highest value of a series of values ​​that are received by parameter.
15 | $x = 10;
16 | $y = 20;
17 | $z = 30;
18 | $a = max($x, $y, $z);
19 | echo $a."<br>";
20 | 
21 | 
22 | //Define a variable whose value is the result of the function that returns the lowest value of a series of values ​​that are received by parameter.
23 | $x = 10;
24 | $y = 20;
25 | $z = 30;
26 | $a = min($x, $y, $z);
27 | echo $a."<br>";
28 | 
29 | //Define a variable whose value is the result of the function that returns a random number
30 | $x = rand(1, 10);
31 | echo $x."<br>";
32 | 


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/operators.php:
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 1 | <?php
 2 | 
 3 | //ARITHMETIC OPERATORS
 4 | 
 5 | // + operator
 6 | $x = 10;
 7 | $y = 20;
 8 | $z = $x + $y;
 9 | echo $z."<br>";
10 | 
11 | // - operator
12 | $x = 10;
13 | $y = 20;
14 | $z = $x - $y;
15 | echo $z."<br>";
16 | 
17 | // "*" operator
18 | $x = 10;
19 | $y = 20;
20 | $z = $x * $y;
21 | echo $z."<br>";
22 | 
23 | // "/" operator
24 | $x = 10;
25 | $y = 20;
26 | $z = $x / $y;
27 | echo $z."<br>";
28 | 
29 | // "%" operator
30 | $x = 10;
31 | $y = 20;
32 | $z = $x % $y;
33 | echo $z."<br>";
34 | 
35 | 
36 | // COMPARISON OPERATORS(==,! =, <,>, <=,> =)
37 | 
38 | $x = 10;
39 | $y = 20;
40 | 
41 | $x == $y;
42 | $x != $y;
43 | $x < $y;
44 | $x > $y;
45 | $x <= $y;
46 | $x >= $y;
47 | 
48 | var_dump($x == $y);
49 | var_dump($x != $y);
50 | var_dump($x < $y);
51 | var_dump($x > $y);
52 | var_dump($x <= $y);
53 | var_dump($x >= $y);
54 | 
55 | 
56 | // LOGICAL OPERATORS(&&, ||, !, Xor)
57 | 
58 | $x = true;
59 | $y = false;
60 | 
61 | $x && $y;
62 | $x || $y;
63 | !$x;
64 | $x xor $y;
65 | 
66 | echo "<br>";
67 | 
68 | var_dump($x && $y);
69 | var_dump($x || $y);
70 | var_dump(!$x);
71 | var_dump($x xor $y);
72 | 
73 | 
74 | 
75 | 
76 | 
77 | 
78 | 


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/phpinfo.php:
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1 | <?php
2 | 
3 | //Call the phpinfo function and verify the result
4 | phpinfo();


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/print.php:
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 1 | <?php
 2 | 
 3 | //echo: we can return several strings in one line
 4 | echo "Hello Assembler Team! ", "How are you? ", "Let's code! <br>" ;
 5 | 
 6 | 
 7 | 
 8 | //print: we can only return one string per line
 9 | print "Hello Assembler Team! ";
10 | print "How are you? ";
11 | print "Let's code! <br>";
12 | 
13 | 
14 | //print_r: accepts other data types as well, such as arrays
15 | $array = array("Hello", "Assembler", "Team!");
16 | print_r($array);
17 | 
18 | 


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/strings.php:
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 1 | <?php
 2 | 
 3 | //Print a text string
 4 | print "Hello Assembler Team! "."<br>";
 5 | 
 6 | //Print a text string that interpret variables
 7 | print "Hello Assembler Team! " . "How are you? " . "Let's code! <br>";
 8 | 
 9 | //Concatenate a previously declared variable in a text string
10 | $text1 = "Hello Assembler Team! ";
11 | $text2 = "How are you? ";
12 | $text3 = "Let's code! <br>";
13 | print $text1 . $text2 . $text3;
14 | 
15 | 
16 | //Execute the function that allows you to replace text in a string (case sensitive)
17 | $text = "Hello Assembler TEAM! ";
18 | $text = str_replace("e", "", $text);
19 | $text = str_replace("Team!", "", $text);
20 | print $text . "<br>";
21 | 
22 | 
23 | //Execute the function that allows you to replace text in a string (without taking into account upper / lower case)
24 | $text = "Hello Assembler Team! ";
25 | $text = str_ireplace("e", "", $text);
26 | $text = str_ireplace("Team!", "", $text);
27 | print $text. "<br>";
28 | 
29 | 
30 | //Execute the function that allows you to write a text N times
31 | $text = "Hello Assembler Team! ";
32 | $text = str_repeat($text, 3);
33 | print $text . "<br>";
34 | 
35 | //Execute the function that allows to obtain the length of a text string
36 | $text = "Hello Assembler Team! ";
37 | $text = strlen($text);
38 | print $text . "<br>";
39 | 
40 | //Executes the function that allows to obtain the position of the first occurrence of a text within a text string
41 | $text = "Hello Assembler Team! ";
42 | $text = strpos($text, "Assembler");
43 | print $text . "<br>";
44 | 
45 | //Execute the function that allows a text string to be capitalized
46 | $text = "Hello Assembler Team! ";
47 | $text = strtoupper($text);
48 | print $text . "<br>";
49 | 
50 | 
51 | //Execute the function that allows you to transform a text string to lowercase
52 | $text = "HELLO ASSEMBLER TEAM! ";
53 | $text = strtolower($text);
54 | print $text . "<br>";
55 | 
56 | 
57 | //Execute the function that allows to obtain a text substring from a given position
58 | $text = "Hello Assembler Team! ";
59 | $text = substr($text, 0, 5);
60 | print $text . "<br>";
61 | 
62 | 


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/types.php:
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 1 | <?php
 2 | 
 3 | //Define a new variable and assign a value to each of the following types: boolean, integer, float, string, array, object, and null.
 4 | $boolean = true;
 5 | $integer = 1;
 6 | $float = 1.1;
 7 | $string = "Hello";
 8 | $array = array("Hello ", "Assembler ", "Team!"."<br>");
 9 | $obj = (object) array("name" => "Víctor");
10 | $null = null;
11 | 
12 | var_dump($boolean);
13 | var_dump($integer);
14 | var_dump($float);
15 | var_dump($string);
16 | var_dump($array);
17 | var_dump($obj);
18 | var_dump($null);
19 | 


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