HTML表單中的文本輸入不會顯示

Question

我正在研究基於文本的在線遊戲（這是非常不完整的），並且我主要使用PHP。在我的HTML中，我有一個用於我的遊戲命令的表單（文本輸入），但它不會顯示。這是我的HTML：

<div class="container"> 
    <div class="main"> 
    <?php 
     include_once 'game.php'; 
    ?> 
    </div> 
    <FORM NAME="form1" METHOD="POST" ACTION=""> 
     <INPUT TYPE="TEXT" VALUE="" name="input" 
      style="width: 600; position: absolute; bottom: 0; z-index: 2;"> 
     </INPUT> 
    </FORM> 
    <?php 
     $input = $_POST["input"]; 
    ?> 
</div> 

所以這是真正的FORM和INPUT螺絲我，因爲它沒有出現。我也有這個作爲我的CSS，如果它可以幫助：

.main { 
    width: 600px; 
    height: 400px; 
    background-color: white; 
    border: 1px solid black; 
    position: absolute; 
    top:0; 
    left: 0; 
    right: 0; 
    z-index: 1; 
} 

.container { 
    width: 602px; 
    height: 500px; 
    background-color: white; 
    border: 1px solid blue; 
    position: absolute; 
    top: 0; 
    bottom: 0; 
    left: 0; 
    right: 0; 
    z-index: 0; 
    margin: 0 auto; 
} 

當然，我有我的game.php，但我不認爲這是個問題。

任何幫助，將不勝感激。

編輯：根據人們的答案，這可能是PHP。這裏是game.php文件的完整代碼，我不知道什麼是錯的。

<?php 
include_once 'index.php'; 
$World = simplexml_load_file("gameworld.xml"); 
$CurrentPos = 0; 
$Done = 0; 
print "<br>"; 
printplace(); 
function printplace() { 
    GLOBAL $World, $CurrentPos; 
    $Room = $World->ROOM[$CurrentPos]; 
    $Name = $Room->NAME; 
    $Desc = wordwrap((string)$Room->DESC); 
    print "$Name<br>"; 
    print str_repeat('-', strlen($Name)); 
    print "<br>$Desc<br>"; 
    if ((string)$Room->NORTH != '-') { 
     $index = (int)$Room->NORTH; 
     print "North: {$World->ROOM[$index]->NAME}<br>"; 
    } 
    if ((string)$Room->SOUTH != '-') { 
     $index = (int)$Room->SOUTH; 
     print "South: {$World->ROOM[$index]->NAME}<br>"; 
    } 
    if ((string)$World->ROOM[$CurrentPos]->WEST != '-') { 
     $index = (int)$Room->WEST; 
     print "West: {$World->ROOM[$index]->NAME}<br>"; 
    } 
    if ((string)$World->ROOM[$CurrentPos]->EAST != '-') { 
     $index = (int)$Room->EAST; 
     print "East: {$World->ROOM[$index]->NAME}<br>"; 
    } 
    print "<br>"; 
} 

while (!$Done) { 
    print "<br>"; // add another line break after the user input 

    $input = split(' ', $input); 

    switch(trim($input[0])) { 
     case 'north': 
      if ((string)$World->ROOM[$CurrentPos]->NORTH != '-') { 
       $CurrentPos = (int)$World->ROOM[$CurrentPos]->NORTH; 
       printplace() ; 
      } else { 
       print "You cannot go north!<br>"; 
      } 
      break; 
     case 'south': 
      if ((string)$World->ROOM[$CurrentPos]->SOUTH != '-') { 
       $CurrentPos = (int)$World->ROOM[$CurrentPos]->SOUTH; 
       printplace() ; 
      } else { 
       print "You cannot go south!<br>"; 
      } 
      break; 
     case 'west': 
      if ((string)$World->ROOM[$CurrentPos]->WEST != '-') { 
       $CurrentPos = (int)$World->ROOM[$CurrentPos]->WEST; 
       printplace() ; 
      } else { 
       print "You cannot go west!<br>"; 
      } 
      break; 
     case 'east': 
      if ((string)$World->ROOM[$CurrentPos]->EAST != '-') { 
       $CurrentPos = (int)$World->ROOM[$CurrentPos]->EAST; 
       printplace() ; 
      } else { 
       print "You cannot go east!<br>"; 
      } 
      break; 
     case 'look': 
      printplace() ; 
      break; 
     case 'quit': 
      $Done = 1; 
      break; 
    } 
} 

print "<br>Thanks for playing!<br>"; 
?> 

真的，它只是關閉的http://www.hackingwithphp.com/21/4/2/text-game-v1 ，我試圖移植到瀏覽器的一個分支，但可怕的失敗...

Answer 1

它顯示了罰款，在Chrome和Firefox中。見下文。

.main { 
 
    width: 600px; 
 
    height: 400px; 
 
    background-color: white; 
 
    border: 1px solid black; 
 
    position: absolute; 
 
    top: 0; 
 
    left: 0; 
 
    right: 0; 
 
    z-index: 1; 
 
} 
 
.container { 
 
    width: 602px; 
 
    height: 500px; 
 
    background-color: white; 
 
    border: 1px solid blue; 
 
    position: absolute; 
 
    top: 0; 
 
    bottom: 0; 
 
    left: 0; 
 
    right: 0; 
 
    z-index: 0; 
 
    margin: 0 auto; 
 
}

<div class="container"> 
 
    <div class="main"> 
 
    </div> 
 
    <FORM NAME="form1" METHOD="POST" ACTION=""> 
 
    <INPUT TYPE="TEXT" VALUE="" name="input" style="width: 600; position: absolute; bottom: 0; z-index: 2;"> 
 
    </INPUT> 
 
    </FORM> 
 
</div>