What is the significance of using mysqli_error() function in handling database errors in PHP?

When handling database errors in PHP, using the mysqli_error() function is significant because it allows you to retrieve the error message generated by the most recent MySQL function call. This can help in debugging and troubleshooting database connectivity or query-related issues more effectively. 

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

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

// Perform a query
$query = "SELECT * FROM users";
$result = mysqli_query($connection, $query);

// Check for errors
if (!$result) {
    die("Query failed: " . mysqli_error($connection));
}

// Process the query result
while ($row = mysqli_fetch_assoc($result)) {
    // Do something with the data
}

// Close the connection
mysqli_close($connection);

Keywords

mysqli_error database errors PHP handling significance

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