What is the significance of using mysql_error() and mysql_errno() functions in PHP when troubleshooting database queries?

When troubleshooting database queries in PHP, using mysql_error() and mysql_errno() functions can provide valuable information about any errors that occur during the query execution. mysql_error() returns the text of the error message from the last MySQL operation, while mysql_errno() returns the error number for the last MySQL operation. By utilizing these functions, developers can quickly identify and address any issues that may arise during database interactions. 

// Perform a database query
$result = mysql_query($query);

// Check for errors
if(!$result){
    echo "Error: " . mysql_error();
    echo "Error number: " . mysql_errno();
    // Additional error handling code can be added here
}

Keywords

mysql_error mysql_errno troubleshooting database queries PHP

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