Huimin' WWW Programming: April 2016

WEEK8_Class of PHP & Form

In this class, we are learning about new things - PHP and FORM.

OK, what is PHP. PHP is really good at handling data submitted to the server in HTML forms. HTML forms allow users to enter data into a web page.

Simple Form Precessing

<form METHOD= "GET"
ACTION= "process.php">

2 main attribute in a form :

1*METHOD
Get/post

2*ACTION
-used to specify the target which is where the data is to be transmitted.
-the target is a file that contains code for processing.

$_GET variable

an array of variable names and value sent by the HTTP GET method

$_POST variable

an array of viarable names and values sent by the HTTP POST method.

$_REQUEST variable

contain the content of both $_GET, $_POST, $_COOKIES.
used to get the result from form data sent with both the GET and POST methods.

Example of Getting form value:

Example of Displaying submitted values:

Authentication using USERNAME & PASSWORD

allowing a user to access private information or preventing them from doing so.

Example of aunthenification

Managing Session

duration for which a user is connected to a site.
also as a block of information that stores variable and values.
feature: i. consist of an identification string.

i. to start a session and to track session variable across user session

session_start();

ii. to register a session

session_register (variable);

iii. to destroy a session

session_destroy();

WEEK 7_In Class

Today, our lecturer give us do some the exercise in class.

How to calculate the BMI using php code:

BMI Categories

Underweight = <18.5

Normal weight = 18.5-24.9

Overweight = 25-29.9

Obesity = BMI of 30 or greater

if ($BMI>= 30)

echo "obes";
elseif ($BMI>= 25)
echo "overweight";
elseif ($BMI>= 18.5)
echo "normal";
else
echo "underweight";

Picture when lecturer was explaining how to do question above XDXD

WEEK 6_Lab Session - Doing some Exercise

These are the lab question that given by our lecturer.

Question 1.

<?php

$name = "Syamsul Bahrin Zaibon";

<html>

<head>

<title>Intro to PHP</title>

</head>

<body>

<h1>

<!--Basic PHP Code.

to print variable name's value --!>

Dear <?php print ($name);?> Welcome to PHP

</h1>

</body>

</html>

output:

Question 2,

<?php

$height = 150;

$width = 30;

<html><head><title>Using Variables and Operators</title></head>

<body>

<h2> The output of the code: </h2><br>

<?php

$luas = $height * $width;

print ("Luas segi empat dengan panjang $height dan lebar $width ialah $luas");

</body>

</html>

output:

To modify above code so that can compute and display net salary based on information give.

<?php

$salary = 2100;

$allowances = 1000;

$socso = 210;

<html><head><title>Using Variables and Operators</title></head>

<body>

<h2> The output of the net salary: </h2><br>

<?php

$net = $salary + $allowances - $socso;

print ("Net Salary is $net");

</body>

</html>

output:

Question3.

<html>

<head><title>Table</title></head>

<body>

<h1>The output of the code: </h1><br>

<?php

for($row = 1; $row<=3; $row++)

{

print ("<TR>");//create row

for ($column =1; $column <=2; $column++)

{

print("<TD>"); //create column

print("Baris $row, Lajur $column");

print("</TD>");

}

print ("</TR>");

}

</TABLE>

</body>

</html>

output:

Question 4.

Correct the code that have error in code.

a).

<html>

<head><title>Syntax</title></head>

<body>

<h1> The output of the code: </h1><br />

<?php

for ($a=1;$a<10;$a++)

{

echo $a,"\n";

}

</body>

</html>

b).

<html>

<head><title>Syntax</title></head>

<body>

<h1> The output of the code: </h1><br />

Welcome <?php echo $_POST["name"];?><br>

You are <?php echo $_POST ["age"];?>years old

</body>

</html>

Sunday, 24 April 2016

WEEK8_Class of PHP & Form

WEEK 7_In Class

WEEK 6_Lab Session - Doing some Exercise