What are the differences in creating temporary tables between MySQL and MSSQL in PHP, and how can these differences impact code functionality?

When creating temporary tables in MySQL and MSSQL in PHP, the main difference lies in the syntax used to create the tables. In MySQL, temporary tables are created using the "CREATE TEMPORARY TABLE" statement, while in MSSQL, temporary tables are created using the "#" prefix before the table name. These syntax differences can impact code functionality if the incorrect syntax is used, leading to errors or unexpected behavior.

// Creating a temporary table in MySQL
$query = "CREATE TEMPORARY TABLE temp_table_name (
    id INT AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(255)
)";
$result = mysqli_query($connection, $query);

// Creating a temporary table in MSSQL
$query = "CREATE TABLE #temp_table_name (
    id INT IDENTITY(1,1) PRIMARY KEY,
    name NVARCHAR(255)
)";
$result = sqlsrv_query($connection, $query);