MYSQL query PHP 7 PHP Version 7.0.14

// conexion.php
<?php
$con=mysqli_connect("HOST","USER","CLAVE","NOMBRE_BASEDATOS");
?>

// index.php
<?php
include("conexion.php");

$query="SELECT * from TABLA";
$result = mysqli_query($con,$query);
// NUMERO DE FILAR
echo mysqli_num_rows($result);
echo "<br>";


while ($row = $result->fetch_assoc())
{
echo $row['fecha'];
echo "<br>";
}
?>



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