对iframe进行编号并显示它

我有一段代码从输入字符串中读取空格分隔的URL，并用iframe视频替换它们。我想在它们上面插入iframe的编号。对iframe进行编号并显示它

下面是我的代码：

$result = $conn - > query($sql); 
if ($result - > num_rows > 0) { 
    // output data of each row 
    while ($row = $result - > fetch_assoc()) { 
     $nr = $row['nr']; 
     $playery = $row['player']; 
     $nrplayer = $nrplayer++; //old int (not used) 


     //////remove from string all iframes and replace tons spaces to only one before every url (That makes string more clear)////// 
     while (strpos($playery, ' ') !== false) { 
      $playery = str_replace(" ", "", $playery); 
     } 
     $playery = str_replace("http", " http", $playery); 
     $playery = str_replace('<iframewidth="420"height="315"src="', ' ', $playery); 
     $playery = str_replace('<iframesrc="', ' ', $playery); 


     ////////remove space of front and in the back //////// 
     while (mb_substr($playery, 0, 1) == " ") { 
      $playery = substr($playery, 1); 
     } 
     while (mb_substr($playery, 0, -1) == " ") { 
      echo "ok"; 
      $playery = substr($playery, 1); 
     } 


     //////add some ads on page//////// 
     require("ads.php"); 

     //////create iframes/////// 
     $nrr = 1; 
     echo $nrr."<br><br><br> <iframe allowfullscreen='1' width='800' height='500' src='".str_replace(' ', "'></iframe> ".$nrr++." <br><br><br> <iframe allowfullscreen='1' width='800' height='500' src='", $playery)."'>"; 

    } 
}

我也只拿到了1行字符串的值$playery是

$playery = "http://www.dailymotion.com/swf/x2t2mgd http://www.dailymotion.com/swf/x2t2ury https://drive.google.com/file/d/0B4DzuaeCNhcsdlhnLURaU0dBQTg/preview https://drive.google.com/file/d/0B6ORWPhIsXTCUVpMd0RNTFU3Wk0/preview https://drive.google.com/file/d/0B9x5eo1ro_r9UVZZSVJucGtJbGs/preview http://mp4upload.com/embed-t9ve1iot81so.html"

我的代码，我得到的是这样的输出：

1 
<video> 
    1 
<video> 
    1 
<video> 
    1 
<video>

不过，我要得到这样的：

1 
<video> 
    2 
<video> 
    3 
<video> 
    4 
<video>

来源

2015-06-14 Doknes

后，如果用'echo'行应该是结果（这并不真正符合你的例子在上面给出） - 那么你只在输出'$ nrr =中使用这个变量1;'（当然它总是“1”）。你可能想使用'$ nrplayer'。但是你的代码不太可读，也许你需要提供更多的信息。 – Risadinha

编辑。我添加了评论 – Doknes

我改进了代码的格式并重新措辞了句子以更好地解释问题。格式不正确的代码难以阅读，并将可能回答您问题的人赶走。请查看[编辑帮助]（http://stackoverflow.com/editing-help）获取更多格式化信息。我也修改了标题。 – Harry

做一些这样的事情，我想你你把$ NRR = 1的循环中所以每次循环运行它变为1

<?php 

$result = $conn->query($sql); 
if ($result->num_rows > 0) { 
    $nrr = 1; 
    // output data of each row 
    while ($row = $result->fetch_assoc()) { 
     $nr = $row['nr']; 
     $playery = $row['player']; 
     $nrplayer = $nrplayer++; 
     while (strpos($playery, ' ') !== false) { 
      $playery = str_replace(" ", "", $playery); 
     } 
     $playery = str_replace("http", " http", $playery); 
     $playery = str_replace('<iframewidth="420"height="315"src="', ' ', $playery); 
     $playery = str_replace('<iframesrc="', ' ', $playery); 
     while (mb_substr($playery, 0, 1) == " ") { 
      $playery = substr($playery, 1); 
     } 
     while (mb_substr($playery, 0, -1) == " ") { 
      echo "ok"; 
      $playery = substr($playery, 1); 
     } 
     require("ads.php");   
     echo $nrr . "<br><br><br> <iframe allowfullscreen='1' width='800' height='500' src='" . str_replace(' ', "'></iframe> " . $nrr++ . " <br><br><br> <iframe allowfullscreen='1' width='800' height='500' src='", $playery) . "'>"; 
    } 
} 
?>

来源

2015-06-14 10:31:24

我没有回路，其唯一的回声和替换; f – Doknes

@Doknes可以请你告诉我们完整的代码 –

后编辑。 – Doknes

在PHP是$ var ++/$ var--表达式它被封装在声明后执行，因此$ NRR不会成为递增，直到你的回音

$var = 1; 
echo $var++; //1 
echo $var; //2

来源

2015-06-14 10:33:32 user1718074

那么我该怎么办？：C – Doknes

对iframe进行编号并显示它

回答

相关问题