Row count with PDO

Question

There are many conflicting statements around. What is the best way to get the row count using PDO in PHP? Before using PDO, I just simply used mysql_num_rows.

Answer 1

fetchColumn()

used if want to get count of record [effisien]

$sql   = "SELECT COUNT(*) FROM fruit WHERE calories > 100";
$res   = $conn->query($sql);
$count = $res->fetchColumn(); // ex = 2

query()

used if want to retrieve data and count of record [options]

$sql = "SELECT * FROM fruit WHERE calories > 100";
$res = $conn->query($sql);

if ( $res->rowCount() > 0) {

    foreach ( $res as $row ) {
        print "Name: {$row['NAME']} 
";
    }

}
else {
    print "No rows matched the query.";
}

PDOStatement::rowCount