Using $_POST to get select option value from HTML
PhpHtmlArraysPhp Problem Overview
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?
Php Solutions
Solution 1 - Php
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>
Solution 2 - Php
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($_POST['taskOption'], ENT_QUOTES, "UTF-8");
} else {
echo "task option is required";
exit;
}
Solution 3 - Php
You can do it like this, too:
<?php
if(isset($_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>
Solution 4 - Php
<select name="taskOption">
<option value="first">First</option>
<option value="second">Second</option>
<option value="third">Third</option>
</select>
$var = $_POST['taskOption'];
Solution 5 - Php
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
Solution 6 - Php
Like this:
<?php
$option = $_POST['taskOption'];
?>
The index of the $_POST array is always based on the value of the name attribute of any HTML input.
Solution 7 - Php
<select name="taskOption">
<option value="1">First</option>
<option value="2">Second</option>
<option value="3">Third</option>
</select>
try this
<?php
if(isset($_POST['button_name'])){
$var = $_POST['taskOption']
if($var == "1"){
echo"your data here";
}
}?>
Solution 8 - Php
-- 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]);