This mysql_connect Attribute seems to old how can I replace them? - php

Question

I cannot connect to my Data Base using this way:
mysql_connect("localhost","root","") or die("1");
mysql_select_db("database") or die("2");
After the connection to the data base I would like to create a while loop with the elements of the data base, this is my code:
$carlistreq = mysql_query("SELECT * FROM cars WHERE brand="'.$_GET['marq'].'"") or die("3");
$count = mysql_num_rows($carlistreq);
if($count==0)
{
echo "No elements";
}
else
{
while($row= mysql_fetch_array($query))
{
//my code
}
}
The issue comes from my SQL attributes like:
mysql_connect
mysql_fetch_array
mysql_select_db
For example.
Here is the error:
Deprecated: mysql_connect(): The mysql extension is deprecated and
will be removed in the future: use mysqli or PDO instead in C:[....]
on line 2

Answer 1

use the mysqli-extension like this:
$mysqli = new mysqli("localhost","user","password","database") or die("1");
$sql = "SELECT * FROM cars WHERE brand='".$_GET['marq']."'";
$result = $mysqli->query($sql);
if($result){
while($row = $result->fetch_assoc()){
//do something with your $row here
}
}
http://php.net/manual/en/book.mysqli.php

Answer 2

Use PDO
$db = new PDO('mysql:host=localhost;dbname=databaseName', 'User' , 'password');
$db->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);

Answer 3

Yes now servers are going to handel mysqli and PDO. Try implementing this code:
<?php
$con = mysqli_connect("localhost","root","");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
// Change database to "test"
mysqli_select_db($con,"test");
// ...some PHP code for database "test"...
mysqli_close($con);
?>
You can user http://php.net/manual/en/book.mysqli.php as reference to understand better how mysqli works.