Manage all your cron jobs without modifying crontab. Handles locking, logging, error emails, and more.

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v3.5.0 2020-07-25 20:18 UTC


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Install the master jobby cron job, and it will manage all your offline tasks. Add jobs without modifying crontab. Jobby can handle logging, locking, error emails and more.

NEW REPO: We have moved jobby to a Github org. Please update your remotes to


  • Maintain one master crontab job.
  • Jobs run via PHP, so you can run them under any programmatic conditions.
  • Use ordinary crontab schedule syntax (powered by the excellent cron-expression).
  • Run only one copy of a job at a given time.
  • Send email whenever a job exits with an error status.
  • Run job as another user, if crontab user has sudo privileges.
  • Run only on certain hostnames (handy in webfarms).
  • Theoretical Windows support (but not ever tested)

Getting Started


The recommended way to install Jobby is through Composer:

$ composer require hellogerard/jobby

Then add the following line to your (or whomever's) crontab:

* * * * * cd /path/to/project && php jobby.php 1>> /dev/null 2>&1

After Jobby installs, you can copy an example file to the project root.

$ cp vendor/hellogerard/jobby/resources/jobby.php .

Running a job


// Ensure you have included composer's autoloader  
require_once __DIR__ . '/vendor/autoload.php';

// Create a new instance of Jobby
$jobby = new Jobby\Jobby();

// Every job has a name
$jobby->add('CommandExample', [

    // Run a shell command
    'command'  => 'ls',

    // Ordinary crontab schedule format is supported.
    // This schedule runs every hour.
    'schedule' => '0 * * * *',






/* ... */

$jobby->add('LoggingExample', [
    'command' => 'ls',
    'schedule' => '0 * * * *',
    // Stdout and stderr is sent to the specified file
    'output' => 'logs/command.log',


/* ... */

Disabling a command


/* ... */

$jobby->add('DisabledExample', [
    'command' => 'ls',
    'schedule' => '0 * * * *',
    // You can turn off a job by setting 'enabled' to false
    'enabled' => false,


/* ... */

Running closures

When running closures, beware that nothing outside of the closure is visible (see #93)!


/* ... */

$jobby->add('ClosureCommandExample', [
     // Use the 'closure' key
     // instead of 'command'
    'closure' => function() {
        echo "I'm a function!\n";
        return true;
    'schedule' => '0 * * * *',


/* ... */

Using a DateTime


/* ... */

$jobby->add('DateTimeExample', [
    'command' => 'ls',
    // Use a DateTime string in
    // the format Y-m-d H:i:s
    'schedule' => '2017-05-03 17:15:00',


/* ... */

Using a Custom Scheduler


/* ... */

$jobby->add('Example', [
    'command' => 'ls',
    // Use any callable that returns
    // a boolean stating whether
    // to run the job or not
    'schedule' => function(DateTimeImmutable $now) {
        // Run on even minutes
        return $now->format('i') % 2 === 0;


/* ... */

Supported Options

Each job requires these:

Key Type Description
schedule string Crontab schedule format (man -s 5 crontab) or DateTime format (Y-m-d H:i:s) or callable (function(): Bool { /* ... */ })
command string The shell command to run (exclusive-or with closure)
closure Closure The anonymous PHP function to run (exclusive-or with command)

The options listed below can be applied to an individual job or globally through the Jobby constructor. Global options will be used as default values, and individual jobs can override them.

Option Type Default Description
runAs string null Run as this user, if crontab user has sudo privileges
debug boolean false Send jobby internal messages to 'debug.log'
Filtering Options to determine whether the job should run or not
environment string null or getenv('APPLICATION_ENV') Development environment for this job
runOnHost string gethostname() Run jobs only on this hostname
maxRuntime integer null Maximum execution time for this job (in seconds)
enabled boolean true Run this job at scheduled times
haltDir string null A job will not run if this directory contains a file bearing the job's name
Logging Options for logging
output string /dev/null Redirect stdout and stderr to this file
output_stdout string value from output option Redirect stdout to this file
output_stderr string value from output option Redirect stderr to this file
dateFormat string Y-m-d H:i:s Format for dates on jobby log messages
Mailing Options for emailing errors
recipients string null Comma-separated string of email addresses
mailer string sendmail Email method: sendmail or smtp or mail
smtpHost string null SMTP host, if mailer is smtp
smtpPort integer 25 SMTP port, if mailer is smtp
smtpUsername string null SMTP user, if mailer is smtp
smtpPassword string null SMTP password, if mailer is smtp
smtpSecurity string null SMTP security option: ssl or tls, if mailer is smtp
smtpSender string jobby@<hostname> The sender and from addresses used in SMTP notices
smtpSenderName string Jobby The name used in the from field for SMTP messages

Symfony integration

Symfony bundle for Jobby - imper86/jobby-cron-bundle


Developed before, but since inspired by whenever.

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