Method: 1. Use the mysql_num_rows function with the syntax "mysql_num_rows (result set)"; 2. Use the mysql_query function to execute the "COUNT(*)" query, and then use the mysql_fetch_row function to retrieve the numeric array from the result set.
The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
PHP query statement, there are two ways to obtain the query the total number of records.
MySQLi process-oriented approach
$sql = "SELECT id, firstname, lastname FROM MyGuests"; $result = mysqli_query($conn, $sql); num_rows=mysqli_num_rows($result);
The first is to use the mysql_num_rows function, example code:
<?php $link = mysql_connect("localhost", "mysql_user", "mysql_password"); mysql_select_db("database", $link); $result = mysql_query("SELECT * FROM table1", $link); $num_rows = mysql_num_rows($result); echo "$num_rows Rows\n"; ?>
The second is to modify the query statement, using COUNT(*) as the query content, example Code:
<?php $link = mysql_connect("localhost", "mysql_user", "mysql_password"); mysql_select_db("database", $link); $result = mysql_query("SELECT COUNT(*) FROM table1", $link); list($num_rows) = mysql_fetch_row($result); echo "$num_rows Rows\n"; ?>
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