How to count result [closed] - php

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I don't know much about PHP and I came on a problem, how to be able to display the number of results.
Example: 'There are 200 results'.
Thank you in advance.
Attached is my code
try
{
$bdd = new PDO("mysql:host=localhost;dbname=pdf", "root", "");
$bdd ->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(Exception $e)
{
die("Une érreur a été trouvé : " . $e->getMessage());
}
$bdd->query("SET NAMES UTF8");
if (isset($_GET["s"]) AND $_GET["s"] == "Rechercher")
{
$_GET["terme"] = htmlspecialchars($_GET["terme"]); //pour sécuriser le formulaire contre les intrusions html
$terme = $_GET["terme"];
$terme = trim($terme); //pour supprimer les espaces dans la requête de l'internaute
$terme = strip_tags($terme); //pour supprimer les balises html dans la requête
if (isset($terme))
{
$terme = strtolower($terme);
$select_terme = $bdd->prepare("SELECT titre, description, lien, lien_image FROM bdr WHERE titre LIKE ? OR description LIKE ?");
$select_terme->execute(array("%".$terme."%", "%".$terme."%"));
}
else
{
$message = "Vous devez entrer votre requete dans la barre de recherche";
}
}
while($terme_trouve = $select_terme->fetch())
{
...
}
$select_terme->closeCursor();
?>

Answer 1

There are few approaches:
1. use $counter and increase it
$counter=0;
while($terme_trouve = $select_terme->fetch())
{
...
$counter++;
}
echo "cnt=".$counter;
2. Use a second sql and get count directly
$select_terme = $bdd->prepare("SELECT count(1) as cnt FROM bdr WHERE titre LIKE ? OR description LIKE ?");
3. use a build in function with initial sql to count
$rowcount=mysqli_num_rows($result_query);
or depend how connection is obtained (above case)
$rowcount = $select_terme->rowCount();
or
$rowcount = $select_terme->fetchColumn();
(count on select)