试图用php发布多维数组

Question

I'm trying to echo information based on what array get submitted in a post. This is my multidimensional array code:

    $filmarkiv = array( 
    'rpo' => array( 
        'titel' => 'loremipsum',
        'beskr' => 'loremipsumloremipsumloremipsum', 
        'skues' => 'loremipsum', 
        'imdb' => 'https://loremipsum/', 
        'img' => 'loremipsum.jpg',
        'rull' => 'loremipsum.png'),      
    'thepre' => array( 
        'titel' => 'loremipsum',
        'beskr' => 'loremipsum', 
        'skues' => 'loremipsum', 
        'imdb' => 'https://loremipsum1/', 
        'img' => 'loremipsum.jpg',
        'rull' => 'loremipsum.png'),         
    'tts' => array( 
        'titel' => 'loremipsum',
        'beskr' => 'loremipsum', 
        'skues' => 'loremipsum', 
        'imdb' => 'https://loremipsum/', 
        'img' => 'loremipsum.jpg',
        'rull' => 'loremipsum.png'
    ));

This code decides what movie, and its info.

Furthermore, this code:

 <?php

            if (isset($_POST['submit'])) {
                $valgt = $_POST['submit']; 
                if ($valgt == " .$key. ") {
                echo "<section id='valgtfilm'>
                         <h1> " .$filmarkiv ['$valgt']['titel']." </h1>
                         <p>  " .$filmarkiv ['$valgt']['besk']."</p>
                         <P>  " .$filmarkiv ['$valgt']['skues']." </p>
                         <img src=' " .$filmarkiv ['$valgt']['img']. " ' alt='Posterplakat' />
                         <img src=' " .$filmarkiv ['$valgt']['rull']. " ' alt='Posterplakat' />
                         <a href=' ".$filmarkiv['imdblink']." ' id='imdblink'>Link til ImdB</a>
                      </section>";
            }};

        ?>

And I also have a form, with selectoptions for each.

            <form action="" method="post">
        <label for="Filmarkiv">Filmarkiv: </label>
        <select name="Filmarkiv" id="Filmarkiv">
        <option value="#">Filmarkivliste: </option>
        <option value="rpo">Ready Player One</option>
        <option value="thepre"> The Prestige</option>
        <option value="tts">The Truman Show</option>
        </select>
        <input type="submit" name="submit" value="Velg Film!" />

Do you see any mistakes?

Answer 1

Try this:

if (isset($_POST['submit'])) {
    $valgt = $_POST['Filmarkiv']; 
    echo "<section id='valgtfilm'>
              <h1> " .$filmarkiv [$valgt]['titel']. " </h1>
              <p>  " .$filmarkiv [$valgt]['besk']. "</p>
              <P>  " .$filmarkiv [$valgt]['skues']. " </p>
              <img src=' " .$filmarkiv [$valgt]['img']. " ' alt='Posterplakat' />
              <img src=' " .$filmarkiv [$valgt]['rull']. " ' alt='Posterplakat' />
              <a href=' ".$filmarkiv[$valgt]['imdblink']." ' id='imdblink'>Link til ImdB</a>
          </section>";
};