duankeng1911 2013-07-07 20:14
浏览 47

PHP 5中嵌套的foreach循环

So here is the deal:

I have an array that contains manufacturers' names for smartphones and an XML file that holds specifications for each specific phone.

What I am trying to do is to group phones based on manufacturer. I am using nested FOREACH loop to do this. And here is my code:

    foreach ($makes as $manufacturer){
        echo '<div>'.'<h2>'.$manufacturer.'</h2>'.'<hr>';
        foreach ($xml as $item){
            if($item->make == $manufacturer){
                $src = $item->thumb;
                echo '<div>'."<img src='$src' width='100'/>".'<h1>'.
                        $item->make.' '.$item->model.'</h1>'.'</div>';
            }
         }  
         echo '</div>';
     }

The problem with this approach is that for some reason my page displays ONLY THE FIRST phone for every manufacturer, instead of going through every model.

What am I doing wrong here?

Here is XML sample:

<?xml version="1.0" encoding="utf-8"?>
<items>
    <item>
       <make></make>
       <model></model>
       <thumb></thumb>
    </item>
</items>

Also, if I remove outer loop, code works perfectly and displays every phone from the XML

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1条回答 默认 最新

  • douluohan3403 2013-07-07 20:34
    关注

    You have a typo:

    echo '<div>'."<img src='$src' width='100'/>".'<h1>'.
    $item->make.' '.$item->model.'</h1>'.
    

    should be

    echo '<div>'."<img src='$src' width='100'/>".'<h1>'.
    $item->make.' '.$item->model.'</h1>';
    

    Note the ";" at the end of the echo.

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