Php 如果我在选择框中选择值，其他文本将显示在输入字段中

我创建了一个数组[]输入名称和地点。如果我在选择框中选择值，所选值的国家/地区将自动显示在输入字段值中

例如，我选择Marjohn bebeloni作为选择框值，则中国将自动显示在输入字段中

试试这个：

<p><label>Select Name</label>
    <select>
      <?php 
        foreach($names as $name => $place){
          echo "<option value='" . $place . "'>" . $name . "</option>";
        }
      ?>

    </select>
  </p>


  <p><label>Place</label><input name="place" value="" /></p>

最简单的方法

<select id="selectsomething">
  <?php 
    foreach($names as $name => $place){
      echo "<option foo=\"$place\">" . $name . "</option>";
    }
  ?>

</select>

你就是这样做的

 <?php
   $names = array('Ireneo Crodua' => 'Australia', 
                  'Almads Bangal' => 'India', 
                  'Rechard Canonigo' => 'America',
                  'Marjohn bebeloni' => 'China'
   );

 ?>
 <form action="post">

   <p><label>Select Name</label>
     <select id="select">
       <?php 
         foreach($names as $name => $place){
           echo "<option value='$place'>" . $name . "</option>";
         }
       ?>

     </select>
   </p>


   <p><label>Place</label><input id="place" name="place" value="" /></p>
   <script>
   $(document).ready(function(){
     $('#select').change(function(){
           $('#place').val($(this).val());
       });
   });

   </script>

---

希望它对您有用。

您可以在

<select id="selectsomething">
  <?php 
    foreach($names as $name => $place){
      echo "<option foo=\"$place\">" . $name . "</option>";
    }
  ?>

</select>

$('#selectsomething').onchange(function(){
    $('#textfield').val($(this).attr("foo"));
`});`

 <?php
   $names = array('Ireneo Crodua' => 'Australia', 
                  'Almads Bangal' => 'India', 
                  'Rechard Canonigo' => 'America',
                  'Marjohn bebeloni' => 'China'
   );

 ?>
 <form action="post">

   <p><label>Select Name</label>
     <select id="select">
       <?php 
         foreach($names as $name => $place){
           echo "<option value='$place'>" . $name . "</option>";
         }
       ?>

     </select>
   </p>


   <p><label>Place</label><input id="place" name="place" value="" /></p>
   <script>
   $(document).ready(function(){
     $('#select').change(function(){
           $('#place').val($(this).val());
       });
   });

   </script>

$(function(){
  $('select').on('change',function(){
     $('input[name=place]').val($(this).val());
  });
});