![]() Then we use the mysql_num_rows() function to count the number of rows and display it. We use the mysqli_query() function to use the database connection and execute the query. We write the SQL statement to select every row from the table. The function takes hostname, username, password, and database name as parameters. We can create an object of the mysqli() function to connect the database with the PHP server. We can use the mysqli_num_rows() function in PHP to count the rows in a MySQL table. Use a Procedural Method to Count the Number of Rows in the MySQL Table Using the mysqli_num_rows() Function The getRowsNumber() function is invoked from anothe php file as: In the example below, the superclass DB contains a connect() method which contians the database connection. Use $stmt variable to call the fetchColumn() method and display the result. Use the connect function to get the connection from DB.php and query the above-written SQL command using the query() function. Use COUNT(*) in the SELECT statement to count the number of rows. Assign a variable $sql and write a query using the SELECT statement to select everything from the users table. Write a public function getRowsNumber() inside the class. | 1 | Dan | James | 1998 - 08 - 23 | | 2 | Dean | Henderson | 2000 - 03 - 30 | + -+-+-+-+įor example, in Test.php, write a class named Test that inherits the DB class. | id | firstname | lastname | dob | + -+-+-+-+ There are two rows in the table in the database. The instructions below assume that a database connection with the server is established. Then we use the fetchColumn() method to display the number of rows in the table. The COUNT() function takes the * as the parameter that counts all rows in the specified table. ![]() Once we ensure the database connection is working, we query the SQL statement using the COUNT() function and execute it. We use an instance of a PDO object to store the connection. ![]() Then, we set up the database connection using the correct host, database username, database password, and database name. Firstly, we create a database and populate the table with data. We can use the fetchColumn() method available in PDO to count the table’s rows. PDO is one of the object-oriented ways to connect the database with the PHP server. Use fetchColumn() Method of PDO to Count the Total Number of Rows in a MySQL Table The use of the prepared statement in this method makes it safe from the vulnerability of SQL injection. This method follows the complete object-oriented practice to connect the database and count the total number of rows. We will demonstrate a way to count all the rows from a table using PHP’s num_rows property. ![]() However, the rest of the process is done procedurally. This method uses an object-oriented way to establish the database connection with the server using the mysqli() function. We will demonstrate another method to count all rows from a table using the mysqli_num_rows() function. ![]()
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