This link will take you to the W3 Schools, a fantastic resource for PHP and other cool stuff.
| Type this... | ... to get this | |||||
|---|---|---|---|---|---|---|
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Embed PHP in HTML</title>
</head>
<body>
<h1>Embed PHP in HTML</h1>
<p>
<?php
echo "If you can keep your head when all about you are losing theirs";
?>
</p>
<?php
echo "<p>If you can trust yourself when all men doubt you</p>";
?>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Using variables in PHP</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div class="container-fluid">
<h1>Variables</h1>
<h2>First look at using variables:</h2>
<?php
$univ = "Concordia";
$year = 1992;
echo "I have been working at " . $univ . " since " . $year . "! ";
define("country", "Canada");
echo "We're in " . country . ".";
?>
<h2>Numeric variables:</h2>
<?php
$x = 7;
var_dump($x);
$y = 3;
$z = $x+$y;
echo "<br />";
echo $z;
$z = 0x1A;
echo "<br />";
var_dump($z);
$w = 0123;
echo "<br />";
var_dump($w);
$floatingNumber = 3.7;
echo "<br />";
var_dump($floatingNumber);
?>
<h2>Boolean variables:</h2>
<?php
$booleanVariable1 = (5<6);
$booleanVariable2 = (3>5);
$booleanVariable3 = $booleanVariable1 || $booleanVariable2;
var_dump($booleanVariable1);
echo "<br />";
var_dump($booleanVariable2);
echo "<br />";
var_dump($booleanVariable3);
echo "<br />";
var_dump(!$booleanVariable1);
?>
<h2>Array variables:</h2>
<?php
$carmakes = array("Audi", "BMW", "Mercedes");
echo "<p>Car makes:</p>";
print_r($carmakes);
echo "<p>Car makes: Element one</p>";
echo $carmakes[0];
//Associative Arrays
$shoppingBasket1 = array("a"=>"bread", "b"=>"milk", "c"=>"eggs");
$shoppingBasket2 = array("b"=>"milk", "a"=>"bread", "c"=>"eggs");
$shoppingBasket3 = array("d"=>"yogurt", "e"=>"orange", "f"=>"apple");
$shoppingBasket = $shoppingBasket1 + $shoppingBasket3;
echo "<p>Shopping Basket:</p>";
print_r($shoppingBasket1);
echo "<br />";
var_dump($shoppingBasket1);
echo "<p>shoppingBasket1 == shoppingBasket2</p>";
var_dump($shoppingBasket1 == $shoppingBasket2);
echo "<p>shoppingBasket1 === shoppingBasket2</p>";
var_dump($shoppingBasket1 === $shoppingBasket2);
echo "<p>Basket 3</p>";
print_r($shoppingBasket3);
echo "<p>shoppingBasket1<> shoppingBasket3</p>";
var_dump($shoppingBasket1 != $shoppingBasket3);
echo "<p>shoppingBasket1 + shoppingBasket3</p>";
print_r($shoppingBasket1 + $shoppingBasket3);
?>
<h2>Object variables:</h2>
<?php
class car{
//properties
public $make = "Ford";
private $status = "off";
//methods
function turn_on(){
$this->status = "on";
}
function getStatus(){
return $this->status;
}
}
$myCar = new car;
var_dump($myCar);
echo "<br />";
echo $myCar->make;
echo "<br />";
$myCar->turn_on();
var_dump($myCar);
echo "<br />";
echo $myCar->getStatus();
?>
<h2>Resource variables:</h2>
<?php
$myFile = fopen("PHP-03.txt","r");
var_dump($myFile);
echo "<br />";
echo "Reading just a few characters from the file: ";
echo fread($myFile,5);
echo "<br />";
echo "Reading the entire file: ";
echo fread($myFile,filesize("PHP-03.txt"));
?>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>String functions</title>
</head>
<body>
<h1>String functions</h1>
<p>
<?php
$message = "A man, a plan, a canal: Panama!";
echo "Length of my message: " . strlen($message);
echo "<br />";
echo "My message contains " . str_word_count($message) . " words.";
echo "<br />";
echo str_replace("an", "oss", $message, $number_of_words_replaced);
echo "<br />";
echo "Number of words replaced: " . $number_of_words_replaced . " words.";
echo "<br />";
echo "Can you read from the right? <br />" . strrev($message);
?>
</p>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Conditional operators</title>
</head>
<body>
<div class="container-fluid">
<p>
<?php
//Basic if format
$boolean_variable = true;
if ($boolean_variable) {
echo "<p>The boolean variable is true.</p>";
} else {
echo "<p>The boolean variable is false.</p>";
};
//Another way to do a condition
$x = ($boolean_variable)?"True branch":"False branch";
echo $x;
//Here with elseif
$temperature = 25;
if ($temperature < 15) {
echo "<p>It is cold!</p>";
} elseif ($temperature>30) {
echo "<p>It is hot!</p>";
} else {
echo "<p>The temperature is just right.</p>";
};
//Here using a case
$fieldofstudy = "Math";
switch ($fieldofstudy ) {
case "Math":
echo "<p>Pi is the ratio of the circumference of a circle to its diameter.</p>";
break;
case "Physics":
echo "<p>Pi is 3.14159 plus or minus 0.000005.</p>";
break;
case "Engineering":
echo "<p>Pi is about 22/7.</p>";
break;
default:
echo "<p>Pie is a delicious food.</p>";
break;
}
?>
</p>
</div>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Loops</title>
</head>
<body>
<div class="container-fluid">
<p>
<?php
//for loops
echo "Examples using for loops: <br /><br />";
for($i = 1; $i <= 7; $i++){
echo $i . "<br />";
}
echo "<br />";
$universities = array("Concordia", "McGill", "UQAM", "UdM");
foreach($universities as $value){
echo $value . "<br />";
}
echo "<br />";
$software = array("ps"=>"PeopleSoft", "pa"=>"Power Automate", "js"=>"JavaScript");
foreach($software as $key=>$value){
echo $key . " : " . $value . "<br />";
}
echo "<br />-----------------------------------------------<br /><br />";
//while loops
echo "Examples using while loops: <br /><br />";
$i = 1;
while($i <= 7){
echo $i . "<br />";
$i++;
}
echo "<br />";
$software = array("PeopleSoft", "Power Automate", "JavaScript");
$j = 0;
while($j<3){
echo $software [$j] . "<br />";
$j++;
}
?>
</p>
</div>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Functions</title>
</head>
<body>
<div class="container-fluid">
<p>
<?php
function introduction(){
echo "<p>This is Concordia University!</p>";
}
function location($university, $city){
echo "<p>$university is located in $city.</p>";
}
function sum($x, $y){
return $x + $y;
}
introduction();
location("Concordia", "Montreal");
$sum = sum(2, 3);
echo "<p>The sum of 2 and 3 is $sum.</p>";
?>
</p>
</div>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Get and Post methods</title>
</head>
<body>
<div class="container-fluid">
<?php
echo "<h3>GET:</h3>";
print_r($_GET);
if($_GET["submit"]){
if($_GET["username"]) {
echo "<p>Hi ". $_GET["username"] . " . Welcome to my page!</p>";
}
}
echo "<h3>POST:</h3>";
print_r($_POST);
if($_POST["submit"]){
if($_POST["country"]){
echo "<p>Your Country is: " . $_POST["country"] . ".</p>";
}
}
?>
<br /><br />
<form method="get" action="PHP-08.php">
<label for="username">Enter your name here and press the submit button: </label><br />
<input type="text" name="username" id="username">
<input type="submit" name="submit" value="Submit">
</form>
<br />
<form method="post" action="PHP-08.php">
<label for="country">Enter your country of origin here and press the submit button: </label><br />
<input type="text" name="country" id="country">
<input type="submit" name="submit" value="Submit">
</form>
</div>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Array functions</title>
</head>
<body>
<div class="container-fluid">
<?php
$deptList1 = array("IITS", "UCS", "HR", "IITS");
$deptList2 = array("FAO", "SGS", "Library");
$deptList = array_merge($deptList1, $deptList2);
echo "<p>List of departments:</p>";
print_r($deptList);
echo "<p>Number of items in list of departments: </p>" . count($deptList);
$count = array_count_values($deptList);
echo "<p>Dept Count</p>";
print_r($count);
echo "<p>Number of IITS iteams in list: </p>" . $count["IITS"];
if(in_array("IITS", $deptList)){
echo "<p>There is a department calleed IITS in the university.</p>";
}else{
echo "<p>There is no department calleed IITS in the university.</p>";
}
array_push($deptList, "Marketing");
echo "<p>Dept list after adding Marketing: </p>";
print_r($deptList);
if($_GET["submit"]){
if($_GET["item"]){
array_push($deptList, $_GET["item"]);
}
}
echo "<p>Dept list:</p>";
print_r($deptList);
array_splice($deptList, 0, 4,array("Accountancy", "Hospitality"));
echo "<p>Dept list:</p>";
print_r($deptList);
sort($deptList);
echo "<p>Dept list sorted in ascending order:</p>";
print_r($deptList);
$countries = array("CH"=>"Swiztzerland", "DE"=>"Germany", "UK"=>"Great Britain");
echo "<p>Countries:</p>";
print_r($countries);
asort($countries);
echo "<p>Countries sorted in ascending order by value:</p>";
print_r($countries );
ksort($countries);
echo "<p>Countries sorted in ascending order by keys:</p>";
print_r($countries);
?>
<br />
<br />
<form method="get">
<label for="item">Add item to dept list:</label>
<input type="text" name="item" id="item">
<input type="submit" name="submit" value="Submit">
</form>
</div>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Date and Time</title>
<style>
h1{
color:green;
}
h3{
color:purple;
}
</style>
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-sm-offset-1 col-sm-10">
<h1>Date and Time</h1>
<div>
<h3>Date using the date() function:</h3>
<?php
//Formatting the Dates and Times with PHP
// Day of the month:
//d (01/31)->two digits with leading zeros
//j (1/31)->without leading zeros
// Day of the week:
//D (Mon/Sun)->text as an abbreviation
//l (monday)->full lowercase
//L (MONDAY)->full uppercase
// Month:
//m (01/12)->two digits with leading zeros
//M (Jan)->text as an abbreviation
//F (January)-> Full month
// Year:
//y (09/15)->two digits
//Y (2009-2015)->Four Digits
// Separators:
//hyphens: (-)
//dots: (.)
//slashes: (/)
//spaces: ( )
$today = date("M j, Y");
echo "<p>Today is: $today.</p>";
?>
<h3>Time using the date() function:</h3>
<?php
//format the time string:
//hour:
//h (01-12)->12-hour format with leading zeros
//H (00-24)->24-hour format with leading zeros
//minutes:
//i (01-59)->minutes with leading zeros
//seconds:
//s (01-59) ->seconds with leading zeros
//Ante meridiem and Post meridiem
//a->lowercase
//A->uppercase
$today = date("H:i:s A");
echo "<p>Time is: $today.</p>";
?>
<h3>Current timestamp using time() function:</h3>
<?php
$timestamp = time();
echo "<p>Timestamp is : $timestamp</p>";
?>
<h3>Convert timestamp to time:</h3>
<?php
$time = date("F d, Y h:i:s A", $timestamp);
echo "<p>Time is $time.</p>";
?>
<h3>Date in 100 days from now:</h3>
<?php
$timestamp = mktime(0, 0, 0, date("m"), date("d")+100, date("Y"));
$time = date("D d M, Y", $timestamp);
echo "<p>Date in 100 days from now: $time.</p>";
?>
</div>
</div">
</div>
</div>
</body>
</html>
|
Click on this link to see the result of the code on the left. |
|||||