How can using multiple mysqli_connect calls in PHP code impact the efficiency and reliability of database connections?

Using multiple mysqli_connect calls in PHP code can impact efficiency and reliability by creating unnecessary overhead and potential connection conflicts. To solve this issue, it's better to establish a single database connection and reuse it throughout the code instead of creating multiple connections. 

// Establish a single database connection and reuse it throughout the code
$connection = mysqli_connect("localhost", "username", "password", "database");

// Check connection
if (!$connection) {
    die("Connection failed: " . mysqli_connect_error());
}

Keywords

mysqli_connect efficiency reliability database connections impact

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