– Quinn Comendant Jan 21 '14 at 7:13 The behaviour of mysqli_num_rows depends on whether buffered or unbuffered result sets are being used. The mysql functions as a whole are deprecated, it is not only mysql_num_rows. I updated the following code (mysqli instead of mysql) that I used to print number of rows in a given table, but it doesn't work as it used to. Alternative for mysql_num_rows using PDO ^ I believe it isn't the same question - The other authors code is different to mine, which needed a different answer. mysql_num_rows(data) Parameter Description; data: Required. Specifies which data pointer to use. Syntax. This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. If you use mysqli_stmt_store_result(), mysqli_stmt_num_rows() may be called immediately. You can read more about picking a database API here. The use of mysqli_stmt_num_rows() depends on whether or not you used mysqli_stmt_store_result() to buffer the entire result set in the statement handle.. Returns the number of rows in the result set. You should switch to mysqli or POD database library. this is just a database tutorial that im working on and i hope that maybe someone can tell me whats goin on. Alternatives to this function include: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in C:\www\databaseconnect.php on line 23 i get that error, ive commented line number twentythree. PHP mysql_num_rows() Function. Complete PHP MySQL Reference. mysql_num_rows function retrieves the number of rows from a result set. In short all mysql_* functions are deprecated. Everything is working fine now (no help from the other 'duplicate' thread. See also MySQL: choosing an API guide and related FAQ for more information. I successfully got my answer from this post and marked it as answered. This command is only valid for statements like SELECT or SHOW that return an actual result set. I have upgraded PHP on my server from version 5 to 7 and I found out that mysql_* functions were removed and now I should use mysqli or PDO. @BillKarwin, did you mean mysql_num_rows()? Hàm mysqli_num_rows() trong PHP Đăng bởi: phungminhduong - Vào ngày: 16-05-2017 - View: 8269 Hàm mysqli_num_rows() sẽ trả về số hàng trong tập hợp kết quả truyền vào. Definition and Usage. Object oriented style int mysqli_result->num_rows ; Procedural style int mysqli_num_rows (mysqli_result result); Returns the number of rows in the result set. PDO's rowCount() method "returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement"—not the same thing. This function returns FALSE on failure. Is there a function equivalent to mysql_num_rows to count the number of columns in a PHP mysql recordset?. The mysql_num_rows() function returns the number of rows in a recordset. Instead, the MySQLi or PDO_MySQL extension should be used. 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