How to wite PHP code with the following SQL query? - php

Question

I am trying to query out a result, it works in SQL query, but I'm trying to get the result using PHP
SELECT prs_amtdb FROM `prs` WHERE prs_amtcrck = 0

Answer 1

Using mysqli
Note: Make sure you bind your value. mysqli does not automatically
secure your query
$connection= mysqli_connect($host, $user, $password, $database);
$query="SELECT prs_amtdb FROM prs WHERE prs_amtcrck = 0";
$result= mysqli_query($connection, $query);//$connection is your database
//connection
//fetch the result
while($row= mysqli_fetch_array($result)){
echo $row['column_name'].'<br/>';
}

Answer 2

Using PDO:
$query = $db->query("SELECT `prs_amtdb` FROM prs WHERE `prs_amtcrck` = 0");
$results = $query->fetchAll();
foreach($results as $result) {
echo $result;
}
http://php.net/manual/en/pdo.query.php
If you have user input that you're using in your query you should always use prepared statements eg:
$query = $db->prepare("SELECT `prs_amtdb` FROM prs WHERE `prs_amtcrck` = :atmcrck");
$query->bindParam(':atmcrck', 0); // 0 will be the user input
$query->execute();
$results = $query->fetchAll();
foreach($results as $result) {
echo $result;
}
Make sure you have a database connection setup in PDO:
try {
$dbh = new PDO('mysql:host=localhost;dbname=test', $user, $pass);
} catch (PDOException $e) {
die($e->getMessage());
}
http://php.net/manual/en/pdo.connections.php