代码如下:

<?php
   if (isset($_POST[\'submit\']))
   {
      echo \"You like the following languages:<br />\";
      foreach($_POST[\'languages\'] AS $language) echo \"$language<br />\";
   }
?>

<form action=\"index.php\" method=\"post\">
   Check all that apply): 
   <input type=\"checkbox\" name=\"languages[]\" value=\"csharp\" />C#<br />
   <input type=\"checkbox\" name=\"languages[]\" value=\"j \" /> <br />
   <input type=\"checkbox\" name=\"languages[]\" value=\"perl\" />Perl<br />
   <input type=\"checkbox\" name=\"languages[]\" value=\"php\" />PHP<br />
   <input type=\"submit\" name=\"submit\" value=\"Go!\" />
</form>
  
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