What is the difference between mysql_select() and mysql_query() in PHP?

The main difference between mysql_select() and mysql_query() in PHP is that mysql_select() is used to select a database, while mysql_query() is used to execute an SQL query on the selected database. Therefore, if you want to perform a query on a specific database, you should use mysql_query(). 

// Connect to the database
$connection = mysql_connect("localhost", "username", "password");
mysql_select_db("database_name", $connection);

// Execute an SQL query using mysql_query()
$result = mysql_query("SELECT * FROM table_name");

// Process the query result
while ($row = mysql_fetch_array($result)) {
    echo $row['column_name'] . "<br>";
}

// Close the database connection
mysql_close($connection);

Keywords

mysql_select mysql_query PHP database difference

Related Questions