What are the benefits of using MySQL functions like mysql_query() and mysql_error() for better error handling in PHP scripts?

When working with MySQL databases in PHP scripts, it is important to use functions like mysql_query() and mysql_error() for better error handling. These functions help in executing SQL queries and retrieving error messages in case of any issues with the queries. By using these functions, developers can easily identify and troubleshoot database errors, leading to more robust and reliable PHP scripts. 

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

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

// Execute SQL query
$query = "SELECT * FROM table";
$result = mysqli_query($connection, $query);

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

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

// Close connection
mysqli_close($connection);

Keywords

MySQL functions mysql_query() mysql_error() error handling PHP scripts

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