HostGator中的PHP cron作业

Question

我想在每天早上7点之后发送短信。所以，我试图在HostGator cron作业选项卡中设置cron作业，然后我编写一个命令来运行该命令的脚本

/usr/local/php5/bin/php5 /home/anandagu/public_html/send-sms.php

SMS-代码：

$user=mysql_query("SELECT * FROM `users`");
while($userexe=mysql_fetch_array($user))
{
    //SUBSTRING(`od_date`,1,10) = '".$_REQUEST['fromDate']."'
    //echo "SELECT count(*) FROM `reminder_activity` WHERE `user`='".$userexe['username']."' AND SUBSTRING(`remainder_date`,1,10)='$dates'";
    $remainder=mysql_query("SELECT count(*) FROM `reminder_activity` WHERE `user`='".$userexe['username']."' AND SUBSTRING(`remainder_date`,1,10)='$dates'");
    $count=mysql_fetch_array($remainder);
     if($count[0] >0)
     {
         $msg="Hi ". $userexe['username'].", today you have $count[0] remainders, kindly check";
         $phone=$userexe['mobile_number'];
         sendSMS($phone,$msg);
     }
}

但它不适合我。请指导我如何创建cron作业并运行脚本。