control cron job execution using php script and ajax request

Question

i want a write a php script which can start , stop , enable and disable cron job. I want to create one interactive jquery page which will asynchronously send a request to php file which will stop , start , enable and disable the job

i have searched so many threads but still didn't get a proper way and i have looked following solutions and thread.

start stop cron job

i tried to implement the solution provided by J. Bruni but when i try to execute ./cron.php activate i am getting following errors

./cron.php: line 1: ?php: No such file or directory
./cron.php: line 3: =: command not found
./cron.php: line 4: =: command not found
./cron.php: line 6: syntax error near unexpected token `('
./cron.php: line 6: `$param    = isset( $argv[1] ) ? $argv[1] : '';'

i solved above error by #!/usr/bin/env php

i think my php file get stuck when following line comes

  shell_exec( 'export EDITOR="/home//www/cron.php on"; crontab -e' );

and i am getting following error

 Window size is too small for nano...crontab: "pico" exited with status 1

Please makes sure the cron user you're editing is not the root cron!!! — Ray
– Ray, Commented Jul 3, 2012 at 16:43
It's very dangerous to give a web based script ability to add/remove stuff from the root cron. (I'm assuming you're using php as a web script). — Ray
– Ray, Commented Jul 3, 2012 at 17:52
yeah , i know but later on we can implement authentication right ? actually my application demands to have a control over turning on and off cron job — Hunt
– Hunt, Commented Jul 3, 2012 at 17:55

togh_j · Accepted Answer · 2012-07-03 16:41:41Z

1

First of all, if you want to execute a php file, on the first line write always write

` #!/usr/bin/env php`

Then :

give the file execution privileges

chmod +x file.php

Then execute it, as follows

./file.php

Or :

execute it using php command

php file.php

answered Jul 3, 2012 at 16:41

togh_j

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1 Comment

Hunt Over a year ago

I am getting this error `Window size is too small for nano...crontab: "pico" exited with status 1'

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