PHP Manual
mysqli_result
Gets the number of rows in a result

mysqli_result::$num_rows

mysqli_num_rows

(PHP 5, PHP 7)

mysqli_result::$num_rows -- mysqli_num_rows — Gets the number of rows in a result

Description

Object oriented style

int $mysqli_result->num_rows;

Procedural style

mysqli_num_rows ( mysqli_result $result ) : int

Returns the number of rows in the result set.

The behaviour of mysqli_num_rows() depends on whether buffered or unbuffered result sets are being used. For unbuffered result sets, mysqli_num_rows() will not return the correct number of rows until all the rows in the result have been retrieved.

Parameters

result: Procedural style only: A result set identifier returned by mysqli_query(), mysqli_store_result() or mysqli_use_result().

Return Values

Returns number of rows in the result set.

Note:
If the number of rows is greater than PHP_INT_MAX, the number will be returned as a string.

Examples

Example #1 Object oriented style

<?php$mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}if ($result = $mysqli->query("SELECT Code, Name FROM Country ORDER BY Name")) { /* determine number of rows result set */ $row_cnt = $result->num_rows; printf("Result set has %d rows.\n", $row_cnt); /* close result set */ $result->close();}/* close connection */$mysqli->close();?>

Example #2 Procedural style

<?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}if ($result = mysqli_query($link, "SELECT Code, Name FROM Country ORDER BY Name")) { /* determine number of rows result set */ $row_cnt = mysqli_num_rows($result); printf("Result set has %d rows.\n", $row_cnt); /* close result set */ mysqli_free_result($result);}/* close connection */mysqli_close($link);?>

The above examples will output:

Result set has 239 rows.

Php/docs/mysqli-result.num-rows

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