Question

我怎样才能让这个PHP代码工作？我需要使用数组列表制作视频iframe冲浪者

<?php
    $videos = array("UT163ZOeKz0" , "ur47gqA1CQo" , "UPEeggt2qAo" , "6lO07NjTsrM"); 
    $list = array_search($videos);
    $id = isset($_GET['id']) ? $_GET['id'] : $list;

    echo "<iframe width='375' height='310' src='http://www.youtube.com/embed/".$videos[$id]."?&amp;fmt=22&amp;autoplay=1'> </iframe>";

    $next = isset($videos[($id+1)]) ? ($id+1) : 0;
    $prev = isset($videos[($id-1)]) ? ($id-1) : count($videos)-1;
?> 

<a href="video.php?id=<?php echo $prev; ?>">Previous video</a> | <a href="video.php?id=<?php echo $next; ?>">Next video</a>

如何根据数组列表按顺序显示视频？

我该怎么办？

我将非常感谢您的回答。

Answer 1

我建议您使用临时存储，就像使用此会话一样。只需保存您当前的当前索引，并将其用于$videos索引。例如：

session_start();
$videos = array("UT163ZOeKz0" , "ur47gqA1CQo" , "UPEeggt2qAo" , "6lO07NjTsrM");
$size = count($videos) - 1;
// simple initialization
$_SESSION['current'] = !isset($_SESSION['current']) ? 0 : $_SESSION['current']; 

if(isset($_GET['next'])) { // if chosen next
    // if out of bouds, reset to the first, else shift to next key
    $_SESSION['current'] = ($_SESSION['current'] >= $size) ? 0 : $_SESSION['current']+1;
} 

if(isset($_GET['prev'])) { // if chosen prev
    // if out of bounds show the last, else shift to previous key
    $_SESSION['current'] = ($_SESSION['current'] > 0) ? $_SESSION['current']-1 : $size;
}

$video = $videos[$_SESSION['current']]; // assign the current key
?>

<iframe width='375' height='310' src="http://www.youtube.com/embed/<?php echo $video; ?>?&fmt=22&autoplay=1"></iframe><br/>
<a href="index.php?prev">Previous video</a> | <a href="index.php?next">Next video</a>

PHP视频冲浪者使用iframe和数组列表

1 个答案: