How to count rows in MySQL table in PHP ?

0 0 2 minutes read

PHP stands for hypertext preprocessor. MySQL is a database query language used to manage databases.

In this article, we are going to discuss how to get the count of rows in a particular table present in the database using PHP and MySQL.

Requirements:

XAMPP

Approach: By using PHP and MySQL, one can perform database operations. We can get the total number of rows in a table by using the MySQL mysqli_num_rows() function.

Syntax:

mysqli_num_rows( result );

The result is to specify the result set identifier returned by mysqli_query() function.

Example: The following table has 5 rows.

To count the number of rows in the building table, the following code snippet is used.

$sql = "SELECT * from building";

if ($result = mysqli_query($con, $sql)) {

    // Return the number of rows in result set
    $rowcount = mysqli_num_rows( $result );
    
    // Display result
    printf("Total rows in this table :  %d\n", $rowcount);
 }

Output: The expected result is as follows.

Total rows in this table : 5

Steps for the approach:

Create a database named database.
Create a table named building inside the database.
Insert records into it.
Write PHP code to count rows.

Steps:

Start XAMPP server.

XAMPP server

Create a database named database and create a table named building inside the database.
Insert records into it

building table

Write PHP code to count rows.

PHP code:

PHP

<?php 
  
// localhost is localhost 
// servername is root 
// password is empty 
// database name is database 
$con = mysqli_connect("localhost","root","","database"); 
  
    // SQL query to display row count 
    // in building table 
    $sql = "SELECT * from building"; 
  
    if ($result = mysqli_query($con, $sql)) { 
  
    // Return the number of rows in result set 
    $rowcount = mysqli_num_rows( $result ); 
      
    // Display result 
    printf("Total rows in this table : %d\n", $rowcount); 
} 
  
// Close the connection 
mysqli_close($con); 
  
?> 

Output: After running the above PHP file in localhost, the following result is achieved.

Total rows in this table : 5

Example 2: In the following example, we count the table rows using MySQL count() function. It’s an aggregate function used to count rows.

Syntax:

select count(*) from table;

Consider the table.

PHP code:

PHP

<?php 
  
// Servername 
$servername = "localhost"; 
  
// Username 
$username = "root"; 
  
// Empty password 
$password = ""; 
  
// Database name 
 $dbname = "database"; 
   
// Create connection by passing these 
// connection parameters 
$conn = new mysqli($servername,  
    $username, $password, $dbname); 
   
// SQL query to find total count 
// of college_data table 
$sql = "SELECT count(*) FROM college_data "; 
$result = $conn->query($sql); 
  
// Display data on web page 
while($row = mysqli_fetch_array($result)) { 
    echo "Total Rows is ". $row['count(*)']; 
    echo "<br />"; 
} 
   
// Close the connection 
$conn->close(); 
  
?> 