How to put my PHP results into an output variable? - php

Question

The code below selects rows from the database table but I want to select 10 random rows and put them in an output variable like the code below.Not csv in particular but to imitate the one below.
$result = mysqli_query($dbc, "SHOW COLUMNS FROM customer");
$numberOfRows = mysqli_num_rows($result);
if ($numberOfRows > 0) {
$values = mysqli_query($dbc, "SELECT * FROM customer");
while ($rowr = mysqli_fetch_row($values)) {
for ($j=0;$j<$numberOfRows;$j++) {
$csv_output .= $rowr[$j].", ";
}
$csv_output .= "\n";
}
}
print $csv_output;
exit;
First i want to select ten random rows then output them in something like the code above.
My code:
<?php
DEFINE ('DBUSER', '');
DEFINE ('DBPW', '');
DEFINE ('DBHOST', '');
DEFINE ('DBNAME', '');
$dbc = mysqli_connect(DBHOST,DBUSER,DBPW);
if (!$dbc) {
die("Database connection failed: " . mysqli_error($dbc));
exit();
}
$dbs = mysqli_select_db($dbc, DBNAME);
if (!$dbs) {
die("Database selection failed: " . mysqli_error($dbc));
exit();
}
$query = 'Select * FROM Funsies
Order By Rand()
Limit 5';
$result = mysqli_query($dbc, $query);
?>

Answer 1

SELECT name
FROM random AS r1 JOIN
(SELECT (RAND() *
(SELECT MAX(id)
FROM random)) AS id)
AS r2
WHERE r1.id >= r2.id
ORDER BY r1.id ASC
LIMIT 1
INTO OUTFILE 'c:\\users\\desktop\\file_name.csv'
fields TERMINATED BY ',' enclosed by '"'
LINES TERMINATED BY '\r\n';