What is the recommended way to handle outdated or forgotten PHP functions or syntax?

When dealing with outdated or forgotten PHP functions or syntax, the recommended way to handle them is to update the code to use modern equivalents or best practices. This can involve replacing deprecated functions with their updated counterparts or refactoring code to adhere to current PHP standards. 

// Example of updating outdated function mysql_connect to mysqli_connect
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);

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

Keywords

Deprecated functions backward compatibility error reporting PHP upgrade syntax errors

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