How can PHP developers effectively handle errors and warnings when working with MySQLi queries?

When working with MySQLi queries in PHP, developers can effectively handle errors and warnings by using error handling techniques such as try-catch blocks and checking for errors after executing queries. By catching exceptions and displaying informative error messages, developers can quickly identify and resolve issues with their database queries. 

<?php
// Establish a MySQLi connection
$mysqli = new mysqli('localhost', 'username', 'password', 'database');

// Check for connection errors
if ($mysqli->connect_error) {
    die('Connection failed: ' . $mysqli->connect_error);
}

// Execute a query
$query = "SELECT * FROM users";
$result = $mysqli->query($query);

// Check for query errors
if (!$result) {
    die('Error executing query: ' . $mysqli->error);
}

// Fetch results
while ($row = $result->fetch_assoc()) {
    // Process results here
}

// Close the connection
$mysqli->close();
?>

Keywords

PHP MySQLi error handling exceptions error reporting

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