Describe how to create a simple AD rotator script without using database in PHP.
Following are the steps to create a simple AD rotator script without using database in PHP:-
- All the ad’s can be collected in one place and be displayed randomly.rand() function can be used for this purpose.
- In order to NOT use any database, a flat file can be used to store the ad’s.
- In order to store the Ad’s information (HTML code), a flat file say “ad.txt” can be created.
- The random number can be stored in a variable
$result_random=rand(1, 100);
- Conditions can be checked to display the ad’s.
if($result_random<=70)
{
echo "Display ad1";
}
Describe how to create a simple AD rotator script without using database in PHP.
First create a text file with ads.txt extension. Each ad has its unique HTML code.
Example :<a href="http://www.mysite.com">Demo Text Link</a>
Write a function to handle ads.
Example :<?php
// Function to display random ads from a list
function showRandomAD($ADnumber = 1)
{
// Loading the ad list into an array
$adList = file('ads.txt');
// Check the total number of ads
$numberOfADs = sizeof($adList);
// Initialize the random generator
list($usec, $sec) = explode(' ', microtime());
srand((float) $sec + ((float) $usec * 100000));
// Initialize the ads counter
$adCount = 0;
// Loop to display the requeste number of ads
while ($adCount++ < $ADnumber)
{
// Generate random ad id
$actAD = rand(0, $numberOfADs-1);
// Display the above generated ad from the array
echo $adList[$actAD].'<br/>';
}
}
?>
- All the lines from the file is stored in the array.
- The function srand() selects the adds randomly from the array.
- Create a simple php file and ember the statement <?php showRandomAD(3); ?> to demonstrate the use of rotator ad.
