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Virtual Cron: Check whether it is time to run a periodical task

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  Author Author  
Picture of Giorgos
Name: Giorgos <contact>
Classes: 7 packages by
Country: Greece Greece
Age: 35
All time rank: 121 in Greece Greece
Week rank: 84 Down1 in Greece Greece Equal
Innovation award
Innovation award
Nominee: 2x

  Detailed description   Download Download .zip .tar.gz  
This class can be used to check whether it is time to run a task that must run from time to time.

It creates a control file to keep track the last time the task was scheduled.

The class can check the control file last modification time to determined whether it passed a given period of time since the last time the task was run.

If the given interval time has passed since the last run, the class recreates the control file and returns true to inform the application that is time to run the task again.

  Classes of Giorgos  >  Virtual Cron  >  Download Download .zip .tar.gz  >  Support forum Support forum (3)  >  Blog Blog  >  RSS 1.0 feed RSS 2.0 feed Latest changes  
Name: Virtual Cron
Base name: virtualcron
Description: Check whether it is time to run a periodical task
Version: 0.1
PHP version: 4.0
License: GNU Lesser General Public License (LGPL)
All time users: 3447 users
All time rank: 911
Week users: 2 users
Week rank: 845 Up
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  Innovation Award  
PHP Programming Innovation award nominee
March 2007
Number 4

Prize: One downloadable copy of PhpED Professional
Many Web applications need to execute periodical tasks, like sending newsletters, processing pending e-commerce orders, etc..

Some operating systems come with programs, like cron or at, to execute scheduled tasks. However, under some Web hosting environments these programs cannot be used.

This class provides an alternative solution that can be used in more restricted hosting environments.

It uses files to keep track of the last time when a periodical task was executed.

The site Web page scripts can use the class to check these files. The class can tell when it is time to execute a task again. When it is time, the same script can execute the scheduled task without depending on external programs.

Manuel Lemos

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All time: Good (95%) Good (90%) - Good (90%) - - Sufficient (65%) 465
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  Applications that use this package  
Corissia Group Hotels
website that uses the virtualcron class to periodically fetch xml data (e.g weaher content)
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  Files folder image Files  
File Role Description
Accessible without login Plain text file virtualcron.php Class the virtual cron class source
Plain text file virtualcron.txt Data the control file
Plain text file example.php Example a little example

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