kill all user processes

kill.php

<?php
$params = $_SERVER['argv'];
if (!$params[1])
    die("Enter user name...\n");

$link = mysql_connect('IP', 'UserName', 'Pwd');
if (!$link) {
    die('Could not connect: ' . mysql_error());
}
echo "Connected successfully\n";

$result = mysql_query("SHOW FULL PROCESSLIST");
$globalKill = 0;
while ($row = mysql_fetch_array($result)) {
    $process_id = $row["Id"];
    if ($row["User"] == $params[1]) {
        $sql = "KILL $process_id";
        mysql_query($sql);
        $globalKill++;
    }
}
echo "Killed $globalKill\n";
mysql_close($link);