Parse error: syntax error, unexpected '!' in php [duplicate]

I'm trying to link an SQL database into an app, and the tutorial I was following had this SQL code in it. When I replaced the placeholders and ran it, it gives me the above error. Here is the code (the database name, username and table name have been replaced, except the relevant part). The real password does end in an exclamation mark too.

<?php

// Create connection
$con=mysqli_connect(“localhost”, ”databasename”, ”password!”, ”tablename”);

// Check connection
if (mysqli_connect_errno())
{
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

// This SQL statement selects ALL from the table ‘Recipes’
$sql = "SELECT * FROM Recipes";

// Check if there are results
if ($result = mysqli_query($con, $sql))
{
    // If so, then create a results array and a temporary one
    // to hold the data
    $resultArray = array();
    $tempArray = array();

    // Loop through each row in the result set
    while($row = $result->fetch_object())
    {
        // Add each row into our results array
        $tempArray = $row;
        array_push($resultArray, $tempArray);
    }

    // Finally, encode the array to JSON and output the results
    echo json_encode($resultArray);
}

// Close connections
mysqli_close($result);
mysqli_close($con);
?>

The full error is:

Parse error: syntax error, unexpected '!' in /home/content/93/9076293/html/babyfood/service.php on line 4

Edit: The below answer worked, but it opened up a new error:

Warning: mysqli_connect() [function.mysqli-connect]: (28000/1045): Access denied for user     'databasename'@'184.168.46.96' (using password: YES) in     /home/content/93/9076293/html/babyfood/service.php on line 4
Failed to connect to MySQL: Access denied for user 'databasename'@'184.168.46.96' (using     password: YES)
Warning: mysqli_query() expects parameter 1 to be mysqli, boolean given in /home/content/93/9076293/html/babyfood/service.php on line 16

Warning: mysqli_close() expects parameter 1 to be mysqli, null given in /home/content/93/9076293/html/babyfood/service.php on line 36

Warning: mysqli_close() expects parameter 1 to be mysqli, boolean given in /home/content/93/9076293/html/babyfood/service.php on line 37