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PHP - Function MySQLi Affected Rows. Syntax. int mysqli_affected_rows ([ resource $link_identifier = NULL ] ) Definition and Usage. It returns the number of affected rows in the previous SELECT, INSERT, UPDATE, REPLACE, or DELETE query. Return Values. An integer > 0 indicates the number of rows affected.0 indicates The answer is I was forgetting to call mysqlistmt::store_result after mysqlistmt::execute(). Once I added $dupSelectStmt->store_result(); I was able to call MySQLi Affected Rows - Learn MySQLi in simple and easy steps starting from Administration, PHP Syntax, Connection, Create, Drop, Info, Select Database, 13 Apr 2015 mysqli_affected_rows. Gets the number of affected rows in a previous MySQL operation Example 3.31 $mysqli->affected_rows example. Object oriented style Remove the line: $mysqli->close();. from the function. and this will work. function mysqli($query){ $mysqli = new mysqli('test','test','test','test'); ifPHP MySQLi Reference. Example. Print out affected rows from different queries: query("DELETE FROM mytable WHERE id < 10"); 8 Jan 2019 mysqli::$affected_rows returns the number of affected rows in the previous Syntax: Object oriented style int $mysqli->affected_rows;. From Mysql manual: "With ON DUPLICATE KEY UPDATE, the affected-rows value per row is 1 if the row is inserted as a new row and 2 if an existing row is