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Felicia Tan
Felicia Tan

Reputation: 1567

Using $_POST to get select option value from HTML

I use select as below:

<select name="taskOption">
    <option>First</option>
    <option>Second</option>
    <option>Third</option>
</select>

How do I get the value from the select option and store it into a variable for future use, in PHP?

Upvotes: 151

Views: 894310

Answers (8)

Dan Costinel
Dan Costinel

Reputation: 1736

You can do it like this, too:

<?php
if(isset($_POST['select1'])){
    $select1 = $_POST['select1'];
    switch ($select1) {
        case 'value1':
            echo 'this is value1<br/>';
            break;
        case 'value2':
            echo 'value2<br/>';
            break;
        default:
            # code...
            break;
    }
}
?>


<form action="" method="post">
    <select name="select1">
        <option value="value1">Value 1</option>
        <option value="value2">Value 2</option>
    </select>
    <input type="submit" name="submit" value="Go"/>
</form>

for php8+ versions, you can use match expression:

$select = $_POST['select1'] ?? '';

$result = match ($select) {
    'value1' => 'this is value1',
    'value2' => 'this is value2',
    default => 'unknown value',
};

echo $result;

Upvotes: 17

Lucky
Lucky

Reputation: 187


-- html file --

<select name='city[]'> 
                <option name='Kabul' value="Kabul" > Kabul </option>
                <option name='Herat' value='Herat' selected="selected">             Herat </option>
                <option name='Mazar' value='Mazar'>Mazar </option>
</select>

-- php file --

$city = (isset($_POST['city']) ? $_POST['city']: null);
print("city is: ".$city[0]);

Upvotes: 1

Bulbul Bigboss
Bulbul Bigboss

Reputation: 21

<select name="taskOption">
<option value="1">First</option>
<option value="2">Second</option>
<option value="3">Third</option>
</select>

try this

<?php 
if(isset($_POST['button_name'])){
$var = $_POST['taskOption']
if($var == "1"){
echo"your data here";
}
}?>

Upvotes: 2

Ryan
Ryan

Reputation: 14659

You can access values in the $_POST array by their key. $_POST is an associative array, so to access taskOption you would use $_POST['taskOption'];.

Make sure to check if it exists in the $_POST array before proceeding though.

<form method="post" action="process.php">
  <select name="taskOption">
    <option value="first">First</option>
    <option value="second">Second</option>
    <option value="third">Third</option>
  </select>
  <input type="submit" value="Submit the form"/>
</form>

process.php

<?php
   $option = isset($_POST['taskOption']) ? $_POST['taskOption'] : false;
   if ($option) {
      echo htmlentities($_POST['taskOption'], ENT_QUOTES, "UTF-8");
   } else {
     echo "task option is required";
     exit; 
   }

Upvotes: 37

user2465080
user2465080

Reputation: 31

Depends on if the form that the select is contained in has the method set to "get" or "post".

If <form method="get"> then the value of the select will be located in the super global array $_GET['taskOption'].

If <form method="post"> then the value of the select will be located in the super global array $_POST['taskOption'].

To store it into a variable you would: 

$option = $_POST['taskOption']

A good place for more information would be the PHP manual: http://php.net/manual/en/tutorial.forms.php

Upvotes: 3

Jeroen Vannevel
Jeroen Vannevel

Reputation: 44438

<select name="taskOption">
      <option value="first">First</option>
      <option value="second">Second</option>
      <option value="third">Third</option>
</select>

$var = $_POST['taskOption'];

Upvotes: 13

Praveen Kumar Purushothaman
Praveen Kumar Purushothaman

Reputation: 167250

Use this way:

$selectOption = $_POST['taskOption'];

But it is always better to give values to your <option> tags.

<select name="taskOption">
  <option value="1">First</option>
  <option value="2">Second</option>
  <option value="3">Third</option>
</select>

Upvotes: 238

Jaime Gris
Jaime Gris

Reputation: 1126

Like this:

<?php
  $option = $_POST['taskOption'];
?>

The index of the $_POST array is always based on the value of the name attribute of any HTML input.

Upvotes: 2

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