Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in

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Hi guys.. sorry for my bad english but i m russian.. i get this error Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in..
I put line 231 where is this error..

Posted 26-Jul-17 1:34am

Member 13329795

Updated 26-Jul-17 1:53am

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Afzaal Ahmad Zeeshan 26-Jul-17 8:15am

I believe, there is a problem with your parameters.

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Jochen Arndt · Accepted Answer · 2017-07-26T01:53:00

Solution 1

mysqli_query has mixed return types. So you have to split your command into two independant ones to create a mysqli_result variable:

PHP

<?php
if ($result = mysqli_query($DB_H, "SELECT * FROM factionlist")) {
    $row_cnt = mysqli_num_rows($result);
    mysqli_free_result($result);
}
?>

See also PHP: mysqli::query - Manual[^] and PHP: mysqli_result::$num_rows - Manual[^] (also available in Russian).

Posted 26-Jul-17 1:53am

Jochen Arndt

Comments

Jochen Arndt 26-Jul-17 8:04am

I can't see a difference between the above two lines and the initial posted one.

Anyway, you have to pass a mysqli_result value to mysqli_num_rows(). That can be achieved with my solution.