What potential issues can arise if the database is not selected after it is created in PHP scripts?

If the database is not selected after it is created in PHP scripts, queries will not be executed on the correct database, leading to errors or unexpected behavior. To solve this issue, you need to explicitly select the database before executing any queries. 

// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Select the database
if (!$conn->select_db($dbname)) {
    die("Cannot select database");
}

// Now you can execute queries on the selected database

Keywords

database PHP scripts connection error SQL injection data integrity

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