Rits Brown Bag - PHP & PHPMyAdmin

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PHP & PHPMyAdmin
Tuesday, 10th May 2016

3
PHPMyAdmin
PHP & PHPMyAdmin
Is a database system used on the web
Is a database system that runs on a server
Is very fast, reliable, and easy to use
Uses standard SQL
Is developed, distributed, and supported by Oracle Corporation
Is named after co-founder Monty Widenius's daughter: My

4
PHPMyAdmin – Main Menu
PHP & PHPMyAdmin

5
PHPMyAdmin – Table
PHP & PHPMyAdmin

Agenda
7
Server
PHP
Page “Hello World”
Connection to Database
Connection to Database(Class)
Extends Class
Insert Data
Display Data
PHP & PHPMyAdmin

8
PHP - Server
PHP & PHPMyAdmin
To work with PHP you have to install a webserver
Can use XAMPP or LAMP, LAMP is for Linux SO but XAMPP works in any SO, X means Cross-Platform
XAMPP can run the following:
Apache (need it to run php)
MySQL (Database)
FileZilla
Mercury
Tomcat

9
•PHP
PHP & PHPMyAdmin
PHP is a Server Side Language
PHP is an acronym for "Hypertext Preprocessor"
Languages you should have a basic understanding
HTML
CSS
JavaScript
Why PHP?
PHP runs on various platforms (Windows, Linux, Unix, Mac OS X, etc.)
PHP is compatible with almost all servers used today (Apache, IIS, etc.)
PHP supports a wide range of databases
PHP is free.

10
Page “Hello World”
PHP & PHPMyAdmin
index.php
<!DOCTYPE html>
<html>
<body>
<h1>My first PHP page</h1>
</body>
</html>
index.php
<!DOCTYPE html>
<html>
<body>
<?php
echo "Hello World!";
?>
</body>
</html>

11
Connection to Database
PHP & PHPMyAdmin
index.php
<!DOCTYPE html>
<html>
<body>
<?php
$servername = "localhost";
$username = "";
$password = "";
$dbname = "test";
// Create connection
$conn = new mysqli($servername, $username, $password,$dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully to database";
?>
</body>
</html>

12
PHP & PHPMyAdmin
index.php
<!DOCTYPE html>
<html>
<body>
<?php
require_once 'base_dados.php';
$bd = new base_dados();
echo "<br><br>";
echo $bd->login();
?>
</body>
</html>
base_dados.php
<?php
Class base_dados {
function login(){
$servername = "localhost";
$username = "";
$password = "";
$dbname = "test";
// Create connection
$conn = new mysqli($servername, $username, $password,$dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
return "Connected successfully to database(class)";
}
}
?>

13
PHP & PHPMyAdmin

14
Extends Class
PHP & PHPMyAdmin
index.php
<!DOCTYPE html>
<html>
<body>
<?php
echo "Hello World! (extend)";
echo $bd->criar_linhas(2);
echo $bd->login();
?>
</body>
</html>
base_dados.php
<?php
require_once('ficheiro.php');
Class base_dados extends classe_externa {
------------
}
ficheiro.php
<?php
Class classe_externa {
function criar_linhas($numero) {
$retorno = '';
for ($i=0;$i<$numero;$i++) {
$retorno .= "<br>";
}
return $retorno;
}
}
?>

15
Extends Class
PHP & PHPMyAdmin

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Insert Data
PHP & PHPMyAdmin
index.php
<!DOCTYPE html>
<html>
<body>
<?php
echo $bd->inserir_registo();
?>
</body>
</html>
base_dados.php
<?php
var $conn;
function login(){
function inserir_registo() {
$this->login();
$data= date('Y-m-d');
$sql = "INSERT INTO tabela_teste (ID, Nome, Numero, Data_Registo) VALUES (NULL, 'teste insercao', 1,
'$data')";
if ($this->conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $this->conn->error;
}
}
}
?>

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Insert Data
PHP & PHPMyAdmin

18
Display Data
PHP & PHPMyAdmin
index.php
<!DOCTYPE html>
<html>
<body>
<?php
echo $bd->selecionar();
?>
</body>
</html>
base_dados.php
<?php
function login(){
function inserir_registo {
function selecionar() {
$this->login();
$retorno = '';
$sql = "SELECT id, nome, numero, data_registo FROM tabela_teste limit 5";
$result = $this->conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
$retorno .= "ID: " . $row["id"] . "<br> Nome: " . $row["nome"]. "<br>";
$retorno .= "Numero " . $row["numero"]. "<br> Data registo " . $row["data_registo"]. "<br>";
$retorno .= $this->criar_linhas(1);
}
} else {
$retorno = "0 results";
}
return $retorno;
}
}

19
Display Data
PHP & PHPMyAdmin

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