How can the use of mysql_error() function help in debugging PHP scripts that involve database queries?

The mysql_error() function can help in debugging PHP scripts that involve database queries by providing detailed error messages when there is an issue with the query execution. This can help developers identify and troubleshoot issues such as syntax errors, connection problems, or permission errors when interacting with the database. 

// Example of using mysql_error() function to debug database queries
$query = "SELECT * FROM users";
$result = mysql_query($query);

if (!$result) {
    die('Query failed: ' . mysql_error());
}

// Continue processing the query result

Keywords

mysql_error() debugging PHP scripts database queries error handling

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