PHP Classes

cjpa's Crontab Class: Manipulate cron tab files to schedule programs

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2004-11-29 (10 years ago) RSS 2.0 feedStarStarStar 55%Total: 2,727 All time: 1,311 This week: 1,116Up
Version License Categories  
crontab 1.0GNU Lesser Genera...Time and Date, Unix
Description Author  

This class interfaces with the Unix/Linux crontab program to parse, manipulate and save the execution of scheduled programs.

You can add, delete, update crontab entries for a given user. It supports comments as well as the special commands (DAILY, WEEKLY, etc..)

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Name: Jo Giraerts <contact>
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Details provided by the author  
cjpa's Crontab-class (c)2003-2004 (

Some notes concerning the crontab-class.

The class is pretty thoroughly documented, so i won't go into specifics here. Windows-users: Bad luck, this won't work on your system unless you have installed Cygwin and probably even then you'll need to adapt this class a bit.

The following example will open the crontab-file of the user who is running the script, take the last entry from her crontab and add another crontab, 5 minutes later that does "ls -al".

<--- SNIP --->

#!/usr/local/bin/php -q
	include_once "Crontab.php";

        $cron = new Crontab(get_current_user());
        $min = ($cron->crontabs[count($cron->getByType(CRON_CMD))][minute] + 5) % 60;
        $hour = $cron->crontabs[count($cron->getByType(CRON_CMD))][hour];

        if ($min < $cron->crontabs[count($cron->crontabs)-1][minute])
                $hour = ($hour+1) % 24 ;

        $cron->addCron($min, $hour, "*", "*", "*", "ls -al");

<--- SNIP --->

  Files folder image Files  
File Role Description
Plain text file Crontab.php Class Main Class
Accessible without login Plain text file README Doc. Some help

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