PHP MySql Database Array update - php

Question

I am trying to update one row in my database like this.
if (isset($_POST['submit'])) {
$sizes = array($_POST['size_king'],
$_POST['size_queen'],
$_POST['size_double']
);
mysqli_query($con, "UPDATE beds
SET `Available Sizes` = '$sizes'
WHERE ID = '$prod_id' "
);
}
Can anyone please help me?
I want this data to only update one row, and the data must be separated by a comma.
I am thinking maybe a FOR loop, but I'm not quite sure.

Answer 1

just use implode() function .
if (isset($_POST['submit'])) {
$sizes = array($_POST['size_king'],
$_POST['size_queen'],
$_POST['size_double']
);
$sizes=implode(",",$sizes);
mysqli_query($con, "UPDATE beds
SET `Available Sizes` = '$sizes'
WHERE ID = '$prod_id' "
);
}

Answer 2

The PHP implode function will serve your purpose.
implode joins array elements into a string separated by the glue we specify. The syntax is:
string implode ( string $glue , array $pieces )
Refer to: http://in3.php.net/manual/en/function.implode.php
Example:
<?php
$array = array('lastname', 'email', 'phone');
$comma_separated = implode(",", $array);
echo $comma_separated; // lastname,email,phone
// Empty string when using an empty array:
var_dump(implode('hello', array())); // string(0) ""
?>

Answer 3

there is a catch when you create database never name your table as "Available Beds" i mean don't use space try using "AvailabaleSizes" or Available_Sizes or "availableSizes" after this change write your query like below.
($con, "UPDATE `beds` SET Available_Sizes = '$sizes' WHERE ID = '$prod_id'");