CODEWITHSUNDEEP
emailphp
iHeff
iHeff

Reputation: 249

Send PHP Mail in intervals

I'm working on a simple text messaging service for my high school's student council and my hosting service only allows 19 PHP mail messages to be sent per minute, so is there a way I can set an interval to only send 15 emails, wait a minute, send another 15, wait, and do so until all the mail is sent? Below is some of my code, all you'll probably need to see is the "foreach" section. 

$subject =     ""; 
$message =     "Hey, $first! $messageget";

$header =     'From: Student Council<[email protected]>' . "\r\n" .
               'Reply-To: [email protected]' . "\r\n" . 
              'X-Mailer: PHP/' . phpversion(); 


foreach($to as $value) { 

    $result = mail($value, $subject, $message, $header); 



}

Upvotes: 5

Views: 8311

Answers (5)

Eric Leroy
Eric Leroy

Reputation: 1836

You just use the function:

 sleep(60);

Put it in your loop.

EDIT:

for email counts, just add up the sent emails in the loop:

$i=0;  // about the foreach loop

and inside the loop call 

if($i<15){ $i++; continue; }
else{ $i=0; }

sleep(60);

Hope that clears it up.

EDIT2: and if that doesn't, here:

$subject =     ""; 
$message =     "Hey, $first! $messageget";

$header =     'From: Student Council<[email protected]>' . "\r\n" .
               'Reply-To: [email protected]' . "\r\n" . 
              'X-Mailer: PHP/' . phpversion(); 

$i=0;
foreach($to as $value) { 

    $result = mail($value, $subject, $message, $header); 

    if($i<15){ $i++; continue; }

  sleep(60);
}

Upvotes: 1

Sven
Sven

Reputation: 70853

Sending 15 Mails in 60 seconds is equivalent to sending one mail every 4 seconds.

So if you have a loop that would send all mails one after another, you decelerate by doing a sleep(4) after every mail is sent.

foreach($to as $value) { 
    $result = mail($value, $subject, $message, $header); 
    sleep(4);
}

This is way easier than calculating when to send the next batch of 15 mails and then wait another 60 seconds. :)

Additionally, it evens out the usage of CPU and network ressources and does not peak after 60 seconds.

Upvotes: 10

Corey
Corey

Reputation: 845

foreach($to as $i=>$value) { 
    if($i%15==1) sleep(60);
    $result = mail($value, $subject, $message, $header);
}

The Count can be done with Modulus $i%15 (run every 15th time) and then pause with sleep(60);

(This above answer assumes your array_keys are numeric and in order, you could also use:)

$i=0;
foreach($to as $value) { 
    if($i%15==1) sleep(60);
    $result = mail($value, $subject, $message, $header);
    $i++;
}

Upvotes: 2

user1372430
user1372430

Reputation:

You can use cron jobs for this situation.
http://www.google.com.tr/?q=cron+job+sending+email+php&oq=php+cron+job+sending
https://serverfault.com/questions/421485/cron-job-sending-bulk-emails-at-a-time

Upvotes: 4

palmplam
palmplam

Reputation: 717

You can use the sleep() function :

 sleep(60); // wait during 60 seconds

Upvotes: 1

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