What are some key considerations for checking and handling MySQL errors in PHP scripts?

When working with MySQL in PHP scripts, it is important to check for errors that may occur during database operations. This can help in identifying and resolving issues promptly. One key consideration is to use error handling techniques such as try-catch blocks to catch and handle any MySQL errors that may arise. 

// Connect to MySQL database
$mysqli = new mysqli("localhost", "username", "password", "database");

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

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

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

// Fetch data from the result set
while ($row = $result->fetch_assoc()) {
    // Process data
}

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

Keywords

MySQL errors error handling PHP scripts try-catch mysqli_fetch_assoc

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