How to get multiple selected values of select box

2018-12-31 07:14发布

站内问答 / PHP
1562 10 6

I have a html form which has a select list box from which you can select multiple values because its multiple property is set to multiple. Consider form method is 'GET'. The html code for the form is as follows:

<html>
    <head>
    <title>Untitled Document</title>
    </head>
    <body>
    <form id="form1" name="form1" method="get" action="display.php">
      <table width="300" border="1">
        <tr>
          <td><label>Multiple Selection </label>&nbsp;</td>
          <td><select name="select2" size="3" multiple="multiple" tabindex="1">
            <option value="11">eleven</option>
            <option value="12">twelve</option>
            <option value="13">thirette</option>
            <option value="14">fourteen</option>
            <option value="15">fifteen</option>
            <option value="16">sixteen</option>
            <option value="17">seventeen</option>
            <option value="18">eighteen</option>
            <option value="19">nineteen</option>
            <option value="20">twenty</option>
          </select>
          </td>
        </tr>
        <tr>
          <td>&nbsp;</td>
          <td><input type="submit" name="Submit" value="Submit" tabindex="2" /></td>
        </tr>
      </table>
    </form>
    </body>
    </html>

I want to display the selected values in select list box on display.php page. So how are the selected values accessed on display.php page using $_GET[] array.

10条回答
伤终究还是伤i
2楼-- · 2018-12-31 07:32

You could do like this too. It worked out for me.

<form action="ResultsDulith.php" id="intermediate" name="inputMachine[]" multiple="multiple" method="post">
    <select id="selectDuration" name="selectDuration[]" multiple="multiple"> 
        <option value="1 WEEK" >Last 1 Week</option>
        <option value="2 WEEK" >Last 2 Week </option>
        <option value="3 WEEK" >Last 3 Week</option>
         <option value="4 WEEK" >Last 4 Week</option>
          <option value="5 WEEK" >Last 5 Week</option>
           <option value="6 WEEK" >Last 6 Week</option>
    </select>
     <input type="submit"/> 
</form>

Then take the multiple selection from following PHP code below. It print the selected multiple values accordingly.

$shift=$_POST['selectDuration'];

print_r($shift);
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笑指拈花
3楼-- · 2018-12-31 07:38

Change:

<select name="select2" ...

To:

<select name="select2[]" ...
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永恒的永恒
4楼-- · 2018-12-31 07:38

I fix my problem with javascript + HTML. First i check selected options and save its in a hidden field of my form:

for(i=0; i < form.select.options.length; i++)
   if (form.select.options[i].selected)
    form.hidden.value += form.select.options[i].value;

Next, i get by post that field and get all the string ;-) I hope it'll be work for somebody more. Thanks to all.

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大哥的爱人
5楼-- · 2018-12-31 07:40 
    <html>
<head>
<title>Untitled Document</title>
</head>
<body>
<form id="form1" name="form1" method="get" action="display.php">
  <table width="300" border="1">
    <tr>
      <td><label>Multiple Selection </label>&nbsp;</td>
      <td><select name="select2[]" size="3" multiple="multiple" tabindex="1">
        <option value="11">eleven</option>
        <option value="12">twelve</option>
        <option value="13">thirette</option>
        <option value="14">fourteen</option>
        <option value="15">fifteen</option>
        <option value="16">sixteen</option>
        <option value="17">seventeen</option>
        <option value="18">eighteen</option>
        <option value="19">nineteen</option>
        <option value="20">twenty</option>
      </select>
      </td>
    </tr>
    <tr>
      <td>&nbsp;</td>
      <td><input type="submit" name="Submit" value="Submit" tabindex="2" /></td>
    </tr>
  </table>
</form>
</body>
</html>

You can iterate it directly like this

foreach ($_GET['select2'] as $value)
    echo $value."\n";

or you can do it like this

$selectvalue=$_GET['select2'];
foreach ($selectvalue as $value)
    echo $value."\n";
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荒废的爱情
6楼-- · 2018-12-31 07:40 
// CHANGE name="select2" TO name="select2[]" THEN
<?php
  $mySelection = $_GET['select2'];

  $nSelection = count($MySelection);

  for($i=0; $i < $nSelection; $i++)
   {
      $numberVal = $MySelection[$i];

        if ($numberVal == "11"){
         echo("Eleven"); 
         }
        else if ($numberVal == "12"){
         echo("Twelve"); 
         } 
         ...

         ...
    }
?>
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旧时光的记忆
7楼-- · 2018-12-31 07:42

This will display the selected values:

<?php

    if ($_POST) { 
        foreach($_POST['select2'] as $selected) {
            echo $selected."<br>";
        }
    }

?>
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