MySQLi And

MySQLi AND condition is used to filter records based on more than one condition.

if all the conditions separated by AND is TRUE then it will displays a records

Below the syntax of AND condition

WHERE condition1
 AND condition2
  ... 
 AND condition_n;

<?php
$conn  = mysqli_connect('localhost:3306', 'user_name', 'password', 'db_nexladder');
 if(! $conn) {
     die('Could not connect: ' . mysqli_error());
 }
$sql = "SELECT * FROM `tbl_customers` WHERE `first_name` = 'Ajay' AND `id` > 9";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result) > 0) 
  {
    while($row = mysqli_fetch_object($result)) {
      echo "Name: " . $row->first_name. "<br />";
     }
   } else {
      echo "0 rows";
}
 mysqli_close($conn);
?>

Below it'll look like: