How long can a php code execute?

Question

I dont know if its the right question.

The thing is that, I have a list of users and their emails stored in my database.

Now I want to send a email to all of them with the help of a loop and setting a time interval delay (may be 5-10 seconds ).

foreach($users as $user){
     //code to send the email
}

I roughly have around 50 users. So will the code execute until the loop will complete? I mean is it a correct way to do?

What if I have hundreds or even thousands of users in future?

Then you must do the operation by lots ;] – Henrique Barcelos May 19 '13 at 18:12 — Henrique Barcelos, May 19 '13 at 18:12
whydo you pause the loop? – Juan Antonio Orozco May 19 '13 at 18:22 — Juan Antonio Orozco, May 19 '13 at 18:22

Abdulaziz · Accepted Answer · 2013-05-19T18:33:51.297

4

The default max execution time is 30 seconds. You can easily modify this by going to your php.ini file and changing max_execution_time option.

If you wish to modify max execution time within your PHP script, you can use this function: set_time_limit ( int $seconds ), you can also revert these changes later.

//Settings time limit to 0 will make the script execute without time limit(see comments).
set_time_limit (0);

foreach($users as $user){
     //code to send the email
}

set_time_limit (30);

edited May 19 '13 at 18:33

answered May 19 '13 at 17:55

Abdulaziz

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This just applies for active time. If you call `sleep()`, the time while it is waiting will not be counted. – Henrique Barcelos May 19 '13 at 18:11
if you set time limit to 0 ex: `set_time_limit (0)` it will run with no time limit – Juan Antonio Orozco May 19 '13 at 18:24

score 0 · Answer 2 · answered May 19 '13 at 17:55

http://php.net/manual/en/info.configuration.php

By default the max_execution_time is 30 seconds. But I don't understand why you would want to stall a script for 5-10 seconds for every user when you're sending an e-mail. You may want to look at a cron job instead.

score 0 · Answer 3 · edited May 23 '17 at 12:05

0

This problem is belong to server config for maximum time execute. You can read here How can I set the maximum execution time for a PHP script?

edited May 23 '17 at 12:05

Community

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answered May 19 '13 at 17:56

Davuz

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How long can a php code execute?

3 Answers3