What is the significance of the error message "Fatal error: Call to undefined method db::rowCount()" in PHP?

The error message "Fatal error: Call to undefined method db::rowCount()" in PHP indicates that the method "rowCount()" is not defined within the db class. To solve this issue, you need to define the rowCount() method within the db class or use a different method to retrieve the number of rows returned from a query. 

// Define the rowCount() method within the db class
class db {
    // Other methods and properties

    public function rowCount() {
        // Implementation to retrieve the number of rows
    }
}

// Example of how to use the rowCount() method
$db = new db();
$rowCount = $db->rowCount();

Keywords

Fatal error Call to undefined method db rowCount PHP

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