How can PHP developers ensure proper error handling and debugging when working with MySQL queries to avoid issues like syntax errors?

When working with MySQL queries in PHP, developers can ensure proper error handling and debugging by using the `mysqli_error()` function to display any syntax errors that may occur. This function will provide detailed information about the error, making it easier to identify and fix the issue. 

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

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

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

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

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

// Close the connection
mysqli_close($connection);

Keywords

PHP MySQL error handling debugging syntax errors

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