Random ads with view counter

Question

I’m with the following script to put random ads on the site, besides simple and easy also works really well and fast with various ads.

The problem is this: How many times each ad was chosen by this script (how many times they were viewed)?

<?php
$imagens = array (
"http://megafeiraoveiculos.com.br/banners/01.png",
"http://megafeiraoveiculos.com.br/banners/02.png",
"http://megafeiraoveiculos.com.br/banners/03.png"
);

$imagenstotal = count($imagens);
$imagenstotal--;
$randomimagens = rand(0,$imagenstotal);
$URL = array (

"http://megafeiraoveiculos.com.br/contato.php", // 01
"http://megafeiraoveiculos.com.br/contato.php", // 02
"http://megafeiraoveiculos.com.br"              // 03
);

echo "<a href='$URL[$randomimagens]' target='_blank'>
<img style='border:1px solid #3f3f3f;' src='$imagens[$randomimagens]'> </a>";
?>

Answer 1

You can store that information in a database, this solution won’t cover that, this I’m going to focus on storing that information in a file, which is one of the ways to do that:

<?php
$imagens = array (
    array(
        'img' => "http://megafeiraoveiculos.com.br/banners/01.png",
        'url' => "http://megafeiraoveiculos.com.br/contato.php"
    ),
    array(
        'img' => "http://megafeiraoveiculos.com.br/banners/02.png",
        'url' => "http://megafeiraoveiculos.com.br/contato.php"
    ),
    array(
        'img' => "http://megafeiraoveiculos.com.br/banners/03.png",
        'url' => "http://megafeiraoveiculos.com.br"
    ),
);
$img_rand = $imagens[rand(0, count($imagens) - 1)];

$ficheiro = 'tests.txt';
$lines = explode("\n", file_get_contents($ficheiro));

$num = 1;
foreach($lines as $key => $value) { // percorrer todas as linhas
    $img = explode(',', $value)[0];
    if($img == $img_rand['img']) { // caso a imagem já exista no ficheiro
        $num = explode(',', $value)[1] + 1; // vamos ver quantas vezes já apareceu e somar 1
        unset($lines[$key]); // apagar a linha antiga do nosso array
        break;
    }
}

$lines[] = $img_rand['img']. "," .$num; // acrescentar nova linha com o valor atualizado, seja pela primeira vez (1) ou não (quantidade anterior + 1)
$lines = implode("\n", $lines);
file_put_contents($ficheiro, trim($lines));

?>
<a href='<?php echo $img_rand['url'] ?>' target='_blank'>
<img style='border:1px solid #3f3f3f;' src='<?php echo $img_rand['img']; ?>'> </a>

Adjust the name of the file you want to save to, this file will get the following structure:

http://megafeiraoveiculos.com.br/banners/03.png,16
http://megafeiraoveiculos.com.br/banners/01.png,14
http://megafeiraoveiculos.com.br/banners/02.png,16

As we see after the comma is the number of times the image fell.

PS: It is very important that there are no more commas on a line, only the one that separates the image from the number of times it has already appeared

I hope you don’t mind but I think I’ve improved the arrays structure a bit $imagens, $URL, so everything is together in the same structure.