Advanced SQL statement executing checkbox checked - php

Question

I have HTML code with checkbox and submit button as below
<form action="checkboxes.php" method="post">
<input type="checkbox" name="checkbox1" value="Yes">4K</input>
<input type="submit" name="formSubmit" value="Submit" ></input>
</form>
And in my PHP I have a file "config.php" that his function is to connect to my database:
<?php
/* Database connection */
$sDbHost = 'localhost';
$sDbName = 'testowanie';
$sDbUser = 'root';
$sDbPwd = '';
$dbcon = mysqli_connect ($sDbHost, $sDbUser, $sDbPwd, $sDbName);
?>
And a second PHP file:
<?php
include('config.php');
$sqlget = "SELECT * FROM monitory";
$sqldata = mysqli_query($dbcon, $sqlget)or die("Can't connect to the database");
if(isset($_POST['checkbox1']) &&
$_POST['checkbox1'] == 'Yes')
{
while($row = mysqli_fetch_array($sqldata, MYSQLI_ASSOC)) {
echo '.';
echo $row['cena'];
}
}
?>
This all three connected files each others do that if the checkbox is checked this SQL statement are executed: SELECT cena FROM monitory; but I want to execute this statement "SELECT * FROM monitory WHERE cena=1000;
I tried to do this like around 2 hours but I really don't know how to do this.

Answer 1

So You want to choose one of two different queries according to input conditions. Then do it so :-)
<?php
include('config.php');
if (isset($_POST['checkbox1']))
$sqlget = "SELECT * FROM monitory WHERE cena = 1000";
else
$sqlget = "SELECT * FROM monitory";
$sqldata = mysqli_query($dbcon, $sqlget)or die("Can't connect to the database");
while($row = mysqli_fetch_array($sqldata, MYSQLI_ASSOC)) {
echo '.';
echo $row['cena'];
}