1. Web System & Technology
Best Professional Development Institute
Prepared by Ali Saeed

2. Bootstrap
Bootstrap is most popular HTML, CSS and JS framework to develop responsive website.

3. Get Bootstrap You can download bootstrap from http://getbootstrap.com/
Or you can use following link
<link rel="stylesheet" href=" beta.2/css/bootstrap.min.css" integrity="sha384- PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">

4. Bootstrap Grid System It divides the whole page into 12 columns
<div class=“container”>
<div class=“row”>
<div class=“col-md-4”></div>
<div class=“col-md-2”></div>
<div class=“col-md-6”></div>
</div>
We might also use <div class=“col-md-6 col-xs-12”></div>

5. Bootstrap Grid System

6. PHP Built in Functions strlen("Hello world!") //output is 12
Print_r (file("test.txt")); // read text file
echo strpos(“University of Lahore",“of"); //return position of the word
Is_int($x)// return 0 or 1. if $x is integer then it return 1 otherwise 0.
Is_string($x) //return 0 or 1. if $x is string then it return 1 otherwise 0.
In_array(“Word”,$x)// return 0 or 1. if word is in array $x then it return 1 otherwise 0.
Example of if statement:
<?php $t = date("H"); if ($t < "20") {     echo "Have a good day!"; } ?>

7. Arrays in PHP
<?php $cars = array("Volvo", "BMW", "Toyota"); echo "I like " . $cars[0] . ", " . $cars[1] . " and " . $cars[2] . "."; ?>
<?php $age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43"); echo "Peter is " . $age['Peter'] . " years old."; ?>

8. Thanks