PHP code to get selected text of a combo box

问题

I have a combo box named "Make". In that combo box I'm loading vehicle manufacturer names. When I click SEARCH button I want to display the selected manufacturer name. Below is part of my HTML code.

<label for="Manufacturer"> Manufacturer : </label>
<select id="cmbMake" name="Make" >
   <option value="0">Select Manufacturer</option>
   <option value="1">--Any--</option>
   <option value="2">Toyota</option>
   <option value="3">Nissan</option>
</select>

<input type="submit" name="search" value="Search"/>

Below is my PHP code so far I've done.

 <?php

if(isset($_POST['search']))
{
    $maker = mysql_real_escape_string($_POST['Make']);
    echo $maker;
    }
 ?>

If I select Toyota from the combo box and press SEARCH button, I'm getting the answer as '2' . It means it gives me the value of the 'Toyota'. But I want to display the name 'Toyota'. How can I do that? Please help me ....

回答1:

Try with this. You will get the select box value in $_POST['Make'] and name will get in $_POST['selected_text']

<form method="POST" >
<label for="Manufacturer"> Manufacturer : </label>
  <select id="cmbMake" name="Make"     onchange="document.getElementById('selected_text').value=this.options[this.selectedIndex].text">
     <option value="0">Select Manufacturer</option>
     <option value="1">--Any--</option>
     <option value="2">Toyota</option>
     <option value="3">Nissan</option>
</select>
<input type="hidden" name="selected_text" id="selected_text" value="" />
<input type="submit" name="search" value="Search"/>
</form>


 <?php

if(isset($_POST['search']))
{

    $makerValue = $_POST['Make']; // make value

    $maker = mysql_real_escape_string($_POST['selected_text']); // get the selected text
    echo $maker;
}
 ?>

回答2:

Put whatever you want to send to PHP in the value attribute.

  <select id="cmbMake" name="Make" >
     <option value="">Select Manufacturer</option>
     <option value="--Any--">--Any--</option>
     <option value="Toyota">Toyota</option>
     <option value="Nissan">Nissan</option>
  </select>

You can also omit the value attribute. It defaults to using the text.

If you don't want to change the HTML, you can put an array in your PHP to translate the values:

$makes = array(2 => 'Toyota',
               3 => 'Nissan');

$maker = $makes[$_POST['Make']];

回答3:

You can achive this with creating new array:

<?php
$array = array(1 => "Toyota", 2 => "Nissan", 3 => "BMW");

if (isset ($_POST['search'])) {
  $maker = mysql_real_escape_string($_POST['Make']);
  echo $array[$maker];
}
?>

回答4:

if you fetching it from database then

<select id="cmbMake" name="Make" >
<option value="">Select Manufacturer</option>
<?php $s2="select * from <tablename>"; 
$q2=mysql_query($s2); 
while($rw2=mysql_fetch_array($q2)) { 
?>
<option value="<?php echo $rw2['id']; ?>"><?php echo $rw2['carname']; ?></option><?php } ?>
</select>

回答5:

Change your select box options value:

<select id="cmbMake" name="Make" >
     <option value="">Select Manufacturer</option>
     <option value="Any">--Any--</option>
     <option value="Toyota">Toyota</option>
     <option value="Nissan">Nissan</option>
  </select>

You cann't get the text of selected option in php. it will give only the value of selected option.

EDITED:

<select id="cmbMake" name="Make" >
     <option value="0">Select Manufacturer</option>
     <option value="1_Any">--Any--</option>
     <option value="2_Toyota">Toyota</option>
     <option value="3_Nissan">Nissan</option>
  </select>

ON php file:

$maker = mysql_real_escape_string($_POST['Make']);
$maker = explode("_",$maker);
echo $maker[1]; //give the Toyota
echo $maker[0]; //give the key 2

回答6:

you can make a jQuery onChange event to get the text from the combobox when the user select one of them:

<script>    
     $( "select" )
     .change(function () {
     var str = "";
     $( "select option:selected" ).each(function() {
     str += $( this ).text() + " ";
     });
     $('#EvaluationName').val(str);
     })
     .change();
 </script>

When you select an option, it will save the text in an Input hidde

  <input type="hidden" id="EvaluationName" name="EvaluationName" value="<?= $Evaluation ?>" />

After that, when you submit the form, just catch up the value of the input

$Evaluation = $_REQUEST['EvaluationName'];

Then you can do wathever you want with the text, for instance save it in a session variable and send it to other page. etc.

来源：https://stackoverflow.com/questions/18268068/php-code-to-get-selected-text-of-a-combo-box

标签

php

html

combobox

selectedtext