What is the significance of using mysql_error() function in PHP when dealing with MySQL queries?

When dealing with MySQL queries in PHP, the mysql_error() function is significant because it helps in identifying and debugging errors that occur during the execution of queries. This function returns a string description of the last error that occurred on the MySQL connection, allowing developers to quickly pinpoint and address issues in their queries. 

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

// Check for errors
if (!$result) {
    echo "Error: " . mysqli_error($connection);
    exit;
}

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

// Free the result set
mysqli_free_result($result);

Keywords

PHP mysql_error() MySQL queries error handling debugging

Related Questions