Usman maxixo

## dashboard.php
<?php

session_start();
if(!isset($_SESSION['user_id'])) {
	header("location: logn.html");
	exit;
}

echo "Welcome to your dashboard";

## login.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Login system</title>
</head>
<body>
	<form action="login.php" method="POST">
		<input type="emaiil" name="email" placeholder="email" required>

## login.php
<?php


 $conn = new mysqli("localhost", "root", "", "user_system");


$username = $_POST['username'];
$email = $_POST['email'];
$password =  password_hash($_POST['password'], PASSWORD_DEFAULT);

## gist:a23c3b074585eb9706bd2594bec1d2c1

// Updating data

$newName = "Alice smith ";
$idToUpdate = 3;

$sql = "UPDATE users_ SET name = '$newName' WHERE id=$idToUpdate";
if ($conn->query($sql)) {
    echo "Record Updated";
} else{

## gist:722565e3233b55f840ea70114d983ae2
<?php

// Create

$conn= new mysqli('localhost', "root", "", "myapp");

$name = "Alice";
$email = "alice@example.com";
$age = 25;

## gist:2d77e3780af9e291e1c515a28a420efd
<?php

$host = 'localhost';
$user = 'root';
$password = "";
$dbname = "myapp";

//create connection

$conn = new mysqli($host,$user,$password,$dbname);

## gist:36f304d46b1c177aca96708384dcb250
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>File Upload</title>
</head>
<body>
   <?php
   if(isset($_FILES['myFile'])) {

## gist:c8523fd806bcef2463d3a7e5257929cb
<?php

// WRITE to file
$handle = fopen("example.txt", "w");
fwrite($handle, "Hello, this is a test \n");
fwrite($handle, "We are writing to a file in PHP");
fclose($handle);


// READ from file

## gist:023e6f453e7d48adeb5c52bc2b8c4c0f
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>User Input</title>
</head>
<body>
    <?php
    // Define the function first

## gist:34c4436d48b712cf96aa6d48c84102d4
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Form Validation</title>
</head>
<body>
	<?php
     $name = $email = $age = "";
	<?php

	session_start();
	if(!isset($_SESSION['user_id'])) {
	header("location: logn.html");
	exit;
	}

	echo "Welcome to your dashboard";
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Login system</title>
	</head>
	<body>
	<form action="login.php" method="POST">
	<input type="emaiil" name="email" placeholder="email" required>
	<?php


	$conn = new mysqli("localhost", "root", "", "user_system");


	$username = $_POST['username'];
	$email = $_POST['email'];
	$password = password_hash($_POST['password'], PASSWORD_DEFAULT);

	// Updating data

	$newName = "Alice smith ";
	$idToUpdate = 3;

	$sql = "UPDATE users_ SET name = '$newName' WHERE id=$idToUpdate";
	if ($conn->query($sql)) {
	echo "Record Updated";
	} else{
	<?php

	// Create

	$conn= new mysqli('localhost', "root", "", "myapp");

	$name = "Alice";
	$email = "alice@example.com";
	$age = 25;
	<?php

	$host = 'localhost';
	$user = 'root';
	$password = "";
	$dbname = "myapp";

	//create connection

	$conn = new mysqli($host,$user,$password,$dbname);
	<?php

	// WRITE to file
	$handle = fopen("example.txt", "w");
	fwrite($handle, "Hello, this is a test \n");
	fwrite($handle, "We are writing to a file in PHP");
	fclose($handle);


	// READ from file