PHP SQL Number of Rows

This example illustrates how to count the rows of the table.
To understand how to count the number of rows in a table, we have created a sql_num_rows.php file.
If you are not connected to the database, then create a connection first using mysql_connect("hostName", "userName",
"Password") and mysql_select_db("databaseName",
connectionObject). Now the query can be executed using mysql_query("SELECT * FROM tableName"). The number of rows
are returned by the mysql_num_rows() method.
Table: users

Source Code of sql_num_rows.php
<?php
$con = mysql_connect('localhost','root','root');
if (!$con) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db("test", $con);
$sql = "SELECT * from users";
$res = mysql_query($sql);
if (!$res) {
print("SQL statement failed with error:\n");
print(mysql_error($con));
} else {
$number_of_rows = mysql_num_rows($res);
print("$number_of_rows rows found");
}
mysql_close($con);
?>
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Output:


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