Question

我如何加入这两个字符串并根据条目列表创建随机链接。

// 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

很容易将所有链接放在（关联）数组中，然后使用array functions来操作它们：

<?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]);

Answer 2

我很想做到这样的事情：

<?php
  // 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";

  $links = array();
  $links[0]=array('link'=>$adlink1,'pic'=>$adlinkpic1);
  $links[1]=array('link'=>$adlink2,'pic'=>$adlinkpic2);
  $links[2]=array('link'=>$adlink3,'pic'=>$adlinkpic3);
  $links[3]=array('link'=>$adlink4,'pic'=>$adlinkpic4);
  $links[4]=array('link'=>$adlink5,'pic'=>$adlinkpic5);

  $alreadyAdded=array();
  for ($i=0;$i<2;$i++) {
    $added = false;
    while (!$added) {
      // generate random number
      $rand = mt_rand(0,4);
      if (!in_array($rand,$alreadyAdded)) {
        echo "<a href='".$links[$rand]['link']."'><img src='".$links[$rand]['pic']."' />";
        $added = true;
        $alreadyAdded[]=$rand;
      }
    }
  }

编辑：注意到您想要输出超过1个更新的代码以反映。

PHP - 带有两个字符串的随机文本

2 个答案: