Question

How would I join these two strings and create random link based on the entry list.

// Add a link and the associated image //
$adlink1="http://www.****.com/sale.php";
$adlinkpic1="http://www.***-cdn.com/blogAssets/ad/1.jpg";
$adlink2="http://www.*****.com/sale.php";
$adlinkpic2="http://www.**-cdn.com/blogAssets/ad/2.jpg";
$adlink3="http://www.**.com/product.php?prodref=564_white&ref=AddSphere";
$adlinkpic3="http://www.**-cdn.com/blogAssets/ad/3.jpg";
$adlink4="http://www.**.com/wedding-boutique.php";
$adlinkpic4="http://www.**-cdn.com/blogAssets/ad/4.jpg";
$adlink5="http://www.**.com/made-to-measure-service.php";
$adlinkpic5="http://www.**-cdn.com/blogAssets/ad/5.jpg";

// SHOW ONE AD LINK

srand ((double) microtime() * 1000000);
$adlink[] + $adlinkpic[] = rand(0,count($quotes)-1);
echo "<a href='$adlink'><img src='$adlinkpic' />";

// SHOW TWO AD LINKS /cannot be same

// code here

Answer 1

It is easy to put all of your links in an (associative) array then use array functions to manipulate them:

<?php
$ad = array(
    array(
        "url" => "http://www.****.com/sale.",
        "img" => "http://www.***-cdn.com/blogAssets/ad/1.jpg"
    ),
    array(
        "url" => "http://www.*****.com/sale.",
        "img" => "http://www.**-cdn.com/blogAssets/ad/2.jpg"
    ),
    array(
        "url" => "http://www.**.com/product.php",
        "img" => "http://www.**-cdn.com/blogAssets/ad/3.jpg"
    ),
    array(
        "url" => "http://www.**.com/wedding-boutique.",
        "img" => "http://www.**-cdn.com/blogAssets/ad/4.jpg"
    ),
    array(
        "url" => "http://www.**.com/made-to-measure-service.",
        "img" => "http://www.**-cdn.com/blogAssets/ad/5.jpg"
    )
    // more ads
);

$id = array_rand($ad); // choose a random index from the array
echo "<a href=\"{$ad[$id]['url']}\"><img src=\"{$ad[$id]['img']}\" /></a>\n";
unset($ad[$id]);       // remove the chosen one so that it is not displayed on next pass

$id = array_rand($ad);
echo "<a href=\"{$ad[$id]['url']}\"><img src=\"{$ad[$id]['img']}\" /></a>\n";
unset($ad[$id]);