解析错误：语法错误，意外''）;'（T_CONSTANT_ENCAPSED_STRING）

Question

这是我第一次发帖。以下代码出错，我无法弄清楚原因。我是PHP的新手;我希望得到一些有助于我将来使用php代码的建设性帮助......

这是错误：

  

解析错误：语法错误，意外''）;'（T_CONSTANT_ENCAPSED_STRING）在第6行的C：\ xampp \ htdocs \ EM420_KeyAssignmentsWebsite \ includes \ tables.php

谢谢

 <?php 
 $con=mysqli_connect("localhost","student","scholar",“thrifty_r_us");
 if (mysqli_connect_errno())
 {
 echo "Failed to connect to MySQL:" .                  

 mysqli_connect_error('mysqli_connect_errno');
 }

 $sql="CREATE TABLE Customers(ID INT NOT NULL AUTO_INCREMENT, PRIMARY          

 KEY(ID), FirstName VARCHAR(100),LastName VARCHAR(100),EmailAddress    

 VARCHAR(100))";

  if (mysqli_query($con,$sql));
 {
 echo "Table Customers created successfully";
 }
 else
 {
 echo"Error creating table: " . mysqli_error($con);
 }

 $sql="CREATE TABLE Clothing(Item_ID INT NOT NULL AUTO_INCREMENT, PRIMARY    

 KEY(Item_ID), Type VARCHAR(100),Style VARCHAR(100),Size VARCHAR(100),Price  

 VARCHAR(100),Male_or_Female(100)
 )";

 if (mysqli_query($con,$sql))
 {
 echo "Table Clothing created successfully";
 }
 else
 {
 echo "Error creating table: " . mysqli_error($con);
 }
   $sql="CREATE TABLE Books(Book_ID INT NOT NULL AUTO_INCREMENT, PRIMARY  

   KEY(Book_ID), Title VARCHAR(100),Author VARCHAR(100),Genre  

   VARCHAR(100),Price VARCHAR(100)
   )";

   if (mysqli_query($con,$sql))

    {
   echo "Table Books created successfully";
    }
   else
   {

   echo "Error creating table: " . mysqli_error($con);

   }

  $sql="CREATE TABLE Linens(Item_ID INT NOT NULL AUTO_INCREMENT, PRIMARY   

  KEY(Item_ID), Type VARCHAR(100),Color VARCHAR(100),Size VARCHAR(100),Price 

  VARCHAR(100)
  )";

  if (mysqli_query($con,$sql))
  {
  echo "Table Linens created successfully";
  }
  else
  {
  echo "Error creating table: " . mysqli_error($con);
  }
  $sql="CREATE TABLE Jewelry(Item_ID INT NOT NULL AUTO_INCREMENT, PRIMARY 

  KEY(Item_ID), Type VARCHAR(100),Metal VARCHAR(100),Stone  

  VARCHAR(100),Color 

  VARCHAR(100),Price VARCHAR(100)
  )"; 
  if (mysqli_query($con,$sql))
  {
  echo "Table Jewelry created successfully";
  }
  else
  {
  echo "Error creating table: " . mysqli_error($con);
  }
  ?>