Is it necessary to explicitly close every database connection in PHP using mysql_close() on the same page?

It is not necessary to explicitly close every database connection in PHP using mysql_close() on the same page. PHP automatically closes the connection when the script finishes executing. However, it is good practice to close the connection explicitly to free up resources and avoid potential issues with too many open connections. 

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

// Perform database operations

// Close the connection explicitly
mysqli_close($connection);

Keywords

PHP database connection mysql_close() resource management memory leakage

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