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PHP and Cron - can PHP modify the cron timing?

 
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PHP and Cron - can PHP modify the cron timing?
a575606
5 Mar, 2008 - 07:10 PM
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Hello everyone. I am using a cron job to manage my email list of about 12,000 emails. I send a monthly newsletter out. I have already set up a php script which runs via cron and sends to 30 emails at a time. When I send my newsletter, I set the cron job to run every minute until the newsletter is done sending. However, for the rest of the month, I don't need the script to run every minute, so I set the cron to check every 3 to 6 hours.

My question is, is it possible to have cron set to check every 3 or 6 hours, but when it finds emails in the queue, it adjusts itself to run every minute until the emails are complete, then readjusts itself to go back to checking every 3 or 6 hours?

Thank you for your help.
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no2pencil
RE: PHP And Cron - Can PHP Modify The Cron Timing?
5 Mar, 2008 - 07:12 PM
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QUOTE(a575606 @ 5 Mar, 2008 - 08:10 PM) *

My question is, is it possible to have cron set to check every 3 or 6 hours, but when it finds emails in the queue, it adjusts itself to run every minute until the emails are complete, then readjusts itself to go back to checking every 3 or 6 hours?

Thank you for your help.

Just make a flag when the process starts (touch in_process.flg <- for example) & when the script is launched by cron, check for the existence of that file. When the process is finished, have it remove the flag.
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a575606
RE: PHP And Cron - Can PHP Modify The Cron Timing?
5 Mar, 2008 - 07:39 PM
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QUOTE(no2pencil @ 5 Mar, 2008 - 08:12 PM) *

Just make a flag when the process starts (touch in_process.flg <- for example) & when the script is launched by cron, check for the existence of that file. When the process is finished, have it remove the flag.


Hi No2Pencil. I'm not quite sure what you mean exactly. I've been using php for several years but not done much automating before. This is the idea I had. Will this work:

CODE

$result = $oNewsletter_Delivery->getList();

while (mysql_num_rows($result) > 0){

    while($myrow=mysql_fetch_row($result)){
    
        // SEND THE NEWSLETTER
        
        $oNewsletter_Delivery->delete($myrow[0]);
    }// end while($myrow=mysql_fetch_row($result)
// INSERT A PAUSE OF 30 seconds
        sleep(30);
$result = $oNewsletter_Delivery->getList();

    
}// end while(mysql_num_rows($result)>0);


This post has been edited by a575606: 5 Mar, 2008 - 07:44 PM
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SpaceMan
RE: PHP And Cron - Can PHP Modify The Cron Timing?
6 Mar, 2008 - 05:58 AM
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he saying, make a timer file?

can just have it update the tame as needed, exit if it not the time you want.
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