From 90d4789e5b73c5152e62ba4f32b70f6c1d6fa4ab Mon Sep 17 00:00:00 2001
From: Marian Roibu <marianroibu32@gmail.com>
Date: Tue, 20 Dec 2022 10:33:02 +0100
Subject: [PATCH 1/2] number 1, print

---
 01.print.php        | 11 +++++++
 02.iterators.php    | 26 +++++++++++++++
 03.operators.php    | 26 +++++++++++++++
 04.dates.php        | 28 ++++++++++++++++
 05.conditionals.php | 80 +++++++++++++++++++++++++++++++++++++++++++++
 06.types.php        |  0
 07.maths.php        | 20 ++++++++++++
 08.strings.php      | 48 +++++++++++++++++++++++++++
 09.arrays.php       | 32 ++++++++++++++++++
 10.functions.php    | 38 +++++++++++++++++++++
 11.phpinfo.php      |  0
 11 files changed, 309 insertions(+)
 create mode 100644 01.print.php
 create mode 100644 02.iterators.php
 create mode 100644 03.operators.php
 create mode 100644 04.dates.php
 create mode 100644 05.conditionals.php
 create mode 100644 06.types.php
 create mode 100644 07.maths.php
 create mode 100644 08.strings.php
 create mode 100644 09.arrays.php
 create mode 100644 10.functions.php
 create mode 100644 11.phpinfo.php

diff --git a/01.print.php b/01.print.php
new file mode 100644
index 0000000..4aa87ff
--- /dev/null
+++ b/01.print.php
@@ -0,0 +1,11 @@
+<?php
+echo "hola?";
+print"hola2?";
+$array = array('apple', 'banana', 'orange');
+
+print_r($array);
+
+
+
+
+?>
\ No newline at end of file
diff --git a/02.iterators.php b/02.iterators.php
new file mode 100644
index 0000000..203650f
--- /dev/null
+++ b/02.iterators.php
@@ -0,0 +1,26 @@
+<?php
+
+for ($i = 1; $i <= 10; $i++) {
+    echo $i . "<br>";
+}
+
+
+foreach ($fruits as $fruit) {
+    echo $fruit . "<br>";
+}
+
+$i = 1;
+while ($i <= 10) {
+    echo $i . "<br>";
+    $i++;
+}
+echo"que pasa?"
+
+$i = 1;
+do {
+    echo $i . "<br>";
+    $i++;
+} while ($i <= 10);
+
+
+?>
\ No newline at end of file
diff --git a/03.operators.php b/03.operators.php
new file mode 100644
index 0000000..21bd121
--- /dev/null
+++ b/03.operators.php
@@ -0,0 +1,26 @@
+<?php
+var_dump(1 == 2); 
+$a = 5;
+$b = 3;
+
+echo $a + $b . "<br>"; // Outputs 8
+echo $a - $b . "<br>"; // Outputs 2
+echo $a * $b . "<br>"; // Outputs 15
+echo $a / $b . "<br>"; // Outputs 1.6666666666667
+echo $a % $b . "<br>"; // Outputs 2
+
+
+echo $a == $b . "<br>"; // Outputs false
+echo $a != $b . "<br>"; // Outputs true
+echo $a < $b . "<br>";  // Outputs false
+echo $a > $b . "<br>";
+
+
+$c = true;
+$d = false;
+
+echo ($c && $d) . "<br>"; // Outputs false
+echo ($c || $d) . "<br>"; // Outputs true
+echo !$c . "<br>";       // Outputs false
+echo ($c xor $d) . "<br>"; // Outputs true
+?>
\ No newline at end of file
diff --git a/04.dates.php b/04.dates.php
new file mode 100644
index 0000000..846cd6a
--- /dev/null
+++ b/04.dates.php
@@ -0,0 +1,28 @@
+<?php
+$date1 = new DateTime();
+echo $date1->format("Y-m-d");
+
+$date2 = new DateTime("2022-12-20");
+echo $date2->format("Y-m-d"); // Outputs "2022-12-20"
+
+$timestamp = strtotime("2022-12-20");
+$date3 = new DateTime("@$timestamp");
+echo $date3->format("Y-m-d"); // Outputs "2022-12-20"
+
+echo date("d"); // Outputs the current day of the month as a 2-digit number (e.g. "01", "02", ..., "31")
+
+echo $date4->format("d"); // Outputs the current day of the month as a 2-digit number (e.g. "01", "02", ..., "31")
+
+echo date("m"); // Outputs the current month as a 2-digit number (e.g. "01", "02", ..., "12")
+
+$date5 = new DateTime();
+echo $date5->format("m"); // Outputs the current month as a 2-digit number (e.g. "01", "02", ..., "12")
+
+echo date("i"); // Outputs the current minute as a 2-digit number with leading zeros (e.g. "00", "01", ..., "59")
+
+$date6 = new DateTime();
+echo $date6->format("i"); // Outputs the current minute as a 2-digit number with leading zeros (e.g. "00", "01", ..., "59")
+
+
+
+?>
\ No newline at end of file
diff --git a/05.conditionals.php b/05.conditionals.php
new file mode 100644
index 0000000..6e19f51
--- /dev/null
+++ b/05.conditionals.php
@@ -0,0 +1,80 @@
+<?php
+
+$day = date("l"); // Get the current day of the week as a full textual representation (e.g. "Monday", "Tuesday", ..., "Sunday")
+
+if ($day == "Monday") {
+    echo "We are on Monday";
+}
+
+$date1 = new DateTime();
+$day = $date->format("l"); // Get the current day of the week as a full textual representation (e.g. "Monday", "Tuesday", ..., "Sunday")
+
+if ($day == "Monday") {
+    echo "We are on Monday";
+}
+
+
+$month = date("F"); // Get the current month as a full textual representation (e.g. "January", "February", ..., "December")
+
+if ($month == "October") {
+    echo "We are in October";
+} else {
+    echo "We are in $month";
+}
+
+$date2 = new DateTime();
+$month = $date2->format("F"); // Get the current month as a full textual representation (e.g. "January", "February", ..., "December")
+
+if ($month == "October") {
+    echo "We are in October";
+} else {
+    echo "We are in $month";
+}
+
+$minute = date("i"); // Get the current minute as a 2-digit number (e.g. "00", "01", ..., "59")
+
+if ($minute < 10) {
+    echo "The current minute is less than 10";
+} elseif ($minute > 15) {
+    echo "The current minute is more than 15";
+} else {
+    echo "Does not meet any conditions";
+}
+
+$date3 = new DateTime();
+$minute = $date3->format("i"); // Get the current minute as a 2-digit number (e.g. "00", "01", ..., "59")
+
+if ($minute < 10) {
+    echo "The current minute is less than 10";
+} elseif ($minute > 15) {
+    echo "The current minute is more than 15";
+} else {
+    echo "Does not meet any conditions";
+}
+
+
+$day = date("l"); // Get the current day of the week as a full textual representation (e.g. "Monday", "Tuesday", ..., "Sunday")
+
+switch ($day) {
+    case "Monday":
+        echo "It's the start of a new week!";
+        break;
+    case "Wednesday":
+        echo "Hump day!";
+        break;
+    case "Friday":
+        echo "TGIF!";
+        break;
+    case "Saturday":
+        echo "Time to relax and enjoy the weekend!";
+        break;
+    case "Sunday":
+        echo "End of the weekend, time to get ready for another week.";
+        break;
+    default:
+        echo "Just another day...";
+        break;
+}
+
+
+?>
\ No newline at end of file
diff --git a/06.types.php b/06.types.php
new file mode 100644
index 0000000..e69de29
diff --git a/07.maths.php b/07.maths.php
new file mode 100644
index 0000000..dd6af21
--- /dev/null
+++ b/07.maths.php
@@ -0,0 +1,20 @@
+<?php
+// Define a variable with the result of the abs function (returns the absolute value)
+$absValue = abs(-123); // $absValue will be 123
+
+// Define a variable with the result of the ceil function (returns the next highest integer)
+$roundedUp = ceil(3.14); // $roundedUp will be 4
+
+// Define a variable with the result of the max function (returns the highest value of a series of values)
+$maxValue = max(1, 2, 3, 4, 5); // $maxValue will be 5
+
+// Define a variable with the result of the min function (returns the lowest value of a series of values)
+$minValue = min(1, 2, 3, 4, 5); // $minValue will be 1
+
+// Define a variable with the result of the rand function (returns a random number)
+$randomNumber = rand(1, 100); // $randomNumber will be a random number between 1 and 100 (inclusive)
+
+
+
+
+?>
\ No newline at end of file
diff --git a/08.strings.php b/08.strings.php
new file mode 100644
index 0000000..e7473f0
--- /dev/null
+++ b/08.strings.php
@@ -0,0 +1,48 @@
+<?php
+// Print a text string
+echo "Hello, World!";
+
+// Print a text string that interprets variables
+$name = "John";
+echo "Hello, $name!";
+
+// Concatenate a previously declared variable in a text string
+$name = "John";
+echo "Hello, " . $name . "!";
+
+// Execute the function that allows you to replace text in a string (case sensitive)
+$text = "Hello, World!";
+$newText = str_replace("World", "PHP", $text);
+echo $newText; // Outputs "Hello, PHP!"
+
+// Execute the function that allows you to replace text in a string (without taking into account upper / lower case)
+$text = "Hello, World!";
+$newText = str_ireplace("world", "PHP", $text);
+echo $newText; // Outputs "Hello, PHP!"
+
+// Execute the function that allows you to write a text N times
+$text = "Hello, World! ";
+echo str_repeat($text, 3); // Outputs "Hello, World! Hello, World! Hello, World! "
+
+// Execute the function that allows to obtain the length of a text string
+$text = "Hello, World!";
+echo strlen($text); // Outputs 13
+
+// Executes the function that allows to obtain the position of the first occurrence of a text within a text string
+$text = "Hello, World!";
+echo strpos($text, "W"); // Outputs 6
+
+// Execute the function that allows a text string to be capitalized
+$text = "hello, world!";
+echo ucwords($text); // Outputs "Hello, World!"
+
+// Execute the function that allows you to transform a text string to lowercase
+$text = "HELLO, WORLD!";
+echo strtolower($text); // Outputs "hello, world!"
+
+// Execute the function that allows to obtain a text substring from a given position
+$text = "Hello, World!";
+echo substr($text, 6);
+
+
+?>
\ No newline at end of file
diff --git a/09.arrays.php b/09.arrays.php
new file mode 100644
index 0000000..90700a3
--- /dev/null
+++ b/09.arrays.php
@@ -0,0 +1,32 @@
+<?php
+// Define a simple array composed of text strings
+$array1 = array("apple", "banana", "orange");
+
+// Define a simple array consisting of whole numbers and decimal numbers
+$array2 = array(1, 2.5, 3, 4.5);
+
+// Define a multidimensional array
+$array3 = array(
+    array(1, 2, 3),
+    array(4, 5, 6),
+    array(7, 8, 9)
+);
+
+// Execute the function that allows to obtain the length of an array
+echo count($array1); // Outputs 3
+
+// Execute the function that allows to obtain the combination of two arrays
+$combinedArray = array_merge($array1, $array2);
+print_r($combinedArray);
+// Outputs Array ( [0] => apple [1] => banana [2] => orange [3] => 1 [4] => 2.5 [5] => 3 [6] => 4.5 )
+
+// Execute the function that once is given an array return the last element of it
+echo end($array1); // Outputs "orange"
+
+// Execute the function that once is given an array add a new element to the array in question
+array_push($array1, "mango");
+print_r($array1); // Outputs Array ( [0] => apple [1] => banana [2] => orange [3] => mango )
+
+
+
+?>
\ No newline at end of file
diff --git a/10.functions.php b/10.functions.php
new file mode 100644
index 0000000..543dddc
--- /dev/null
+++ b/10.functions.php
@@ -0,0 +1,38 @@
+<?php
+// Create a function that given two numbers returns the sum of both
+function sum($x, $y) {
+    return $x + $y;
+}
+
+// Create a function that given two numbers returns the multiplication of both
+function multiply($x, $y) {
+    return $x * $y;
+}
+
+// Create a function that given two numbers returns the division of both
+function divide($x, $y) {
+    return $x / $y;
+}
+
+// Create a function that, given two numbers and an operation (add, multiply or divide), returns the result of that operation
+function calculate($x, $y, $operation) {
+    switch ($operation) {
+        case "add":
+            return sum($x, $y);
+        case "multiply":
+            return multiply($x, $y);
+        case "divide":
+            return divide($x, $y);
+        default:
+            return "Invalid operation";
+    }
+}
+
+// Test the calculate function
+echo calculate(1, 2, "add"); // Outputs 3
+echo calculate(3, 4, "multiply"); // Outputs 12
+echo calculate(6, 2, "divide"); // Outputs 3
+echo calculate(5, 6, "subtract"); // Outputs "Invalid operation"
+
+
+?>
\ No newline at end of file
diff --git a/11.phpinfo.php b/11.phpinfo.php
new file mode 100644
index 0000000..e69de29

From 22b464cfd18ea0afbe95cef3af3e0af5b2ab429d Mon Sep 17 00:00:00 2001
From: Marian Roibu <marianroibu32@gmail.com>
Date: Wed, 21 Dec 2022 09:39:16 +0100
Subject: [PATCH 2/2] fixed errors

---
 02.iterators.php    | 10 +++++-----
 04.dates.php        |  2 +-
 05.conditionals.php |  5 ++++-
 06.types.php        | 28 ++++++++++++++++++++++++++++
 11.phpinfo.php      |  5 +++++
 5 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/02.iterators.php b/02.iterators.php
index 203650f..8ae49a3 100644
--- a/02.iterators.php
+++ b/02.iterators.php
@@ -14,13 +14,13 @@
     echo $i . "<br>";
     $i++;
 }
-echo"que pasa?"
 
-$i = 1;
+
+$i2 = 1;
 do {
-    echo $i . "<br>";
-    $i++;
-} while ($i <= 10);
+    echo $i2 . "<br>";
+    $i2++;
+} while ($i2 <= 10);
 
 
 ?>
\ No newline at end of file
diff --git a/04.dates.php b/04.dates.php
index 846cd6a..97dc973 100644
--- a/04.dates.php
+++ b/04.dates.php
@@ -11,7 +11,7 @@
 
 echo date("d"); // Outputs the current day of the month as a 2-digit number (e.g. "01", "02", ..., "31")
 
-echo $date4->format("d"); // Outputs the current day of the month as a 2-digit number (e.g. "01", "02", ..., "31")
+echo $date3->format("d"); // Outputs the current day of the month as a 2-digit number (e.g. "01", "02", ..., "31")
 
 echo date("m"); // Outputs the current month as a 2-digit number (e.g. "01", "02", ..., "12")
 
diff --git a/05.conditionals.php b/05.conditionals.php
index 6e19f51..163d9b9 100644
--- a/05.conditionals.php
+++ b/05.conditionals.php
@@ -7,7 +7,7 @@
 }
 
 $date1 = new DateTime();
-$day = $date->format("l"); // Get the current day of the week as a full textual representation (e.g. "Monday", "Tuesday", ..., "Sunday")
+$day = $date1->format("l"); // Get the current day of the week as a full textual representation (e.g. "Monday", "Tuesday", ..., "Sunday")
 
 if ($day == "Monday") {
     echo "We are on Monday";
@@ -77,4 +77,7 @@
 }
 
 
+
+
+
 ?>
\ No newline at end of file
diff --git a/06.types.php b/06.types.php
index e69de29..d37ced3 100644
--- a/06.types.php
+++ b/06.types.php
@@ -0,0 +1,28 @@
+<?php
+// Define a boolean variable
+$bool = true;
+
+// Define an integer variable
+$int = 123;
+
+// Define a float variable
+$float = 3.14;
+
+// Define a string variable
+$string = "Hello, World!";
+
+// Define an array variable
+$array = array(1, 2, 3, 4, 5);
+
+// Define an object variable
+class MyClass { }
+$object = new MyClass();
+
+// Define a NULL variable
+$null = null;
+
+
+
+
+
+?>
\ No newline at end of file
diff --git a/11.phpinfo.php b/11.phpinfo.php
index e69de29..ba2e1f6 100644
--- a/11.phpinfo.php
+++ b/11.phpinfo.php
@@ -0,0 +1,5 @@
+<?php
+
+
+
+?>
\ No newline at end of file