解析错误：语法错误，意外' - >'（T_OBJECT_OPERATOR）不确定原因

i got the error for line while($array[] = $query->fetch_object());

<?php
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Connection to database failed: " . $conn->connect_error);
} 
echo "";
$query = mysqli->query("SELECT * FROM 'Contracts'");
while($array[] = $query->fetch_object());
array_pop($array);
print_r_html($array);

?>

I am not able to understand why??? please help! thank you

There are 2 errors here.

First for mysqli. It is being treated as a constant.

$query = mysqli->query

it should read as

$query = $conn->query

and using $conn as your variable.

Then you're using single quotes around your table rather than ticks or none at all.

$query = $conn->query("SELECT * FROM `Contracts`");

or

$query = $conn->query("SELECT * FROM Contracts");

References: