CODEWITHSUNDEEP
phpcron
user1049997
user1049997

Reputation: 1593

Cron Job $_SERVER issue

I want to run a cron job. My application is developed in PHP and Mysql.

In browser if i use $_SERVER[HTTP_HOST] in coding, it works fine. But if I use the same thing in cron job it is giving errors.

Can any body give suggestion to fix this?

Upvotes: 21

Views: 16327

Answers (8)

FiddlingAway
FiddlingAway

Reputation: 2255

If wget is supported on your server, you can change your cronjob from

15 * * * * php -q /path/to/your/cron/script.php > /dev/null 2>&1

to

15 * * * * wget -qO- --no-check-certificate "https://example.com/cron/script.php"

Be sure to limit the number of tries, and the time limit.

Consult the manual for the available options.

Upvotes: 0

Hans
Hans

Reputation: 359

I'm surprised no one has mentioned the option of just defining any required values for the _SERVER array in another file and then just including that. This is the quickest way I've found to run a normally cgi-based php script from the cli for quick test/debugging purposes.

Eg, file cron_server_wrapper.php:

<?php
$_SERVER['SERVER_NAME'] = "localhost";
$_SERVER['HTTP_HOST'] = "localhost";
$_SERVER['REMOVE_ADDR'] = "10.20.30.40";
$_SERVER['DOCUMENT_ROOT'] = "/";
$_SERVER['HTTP_REFERER'] = "/crontab-foo";

Then run:

/usr/bin/php -B "require 'path/to/cron_server_wrapper.php'" -E "require 'my_php_cron_script.php';" < /dev/null

Upvotes: 4

Horse
Horse

Reputation: 3063

Adding hard coded args into the crontab didn't help as I need it to be sensitive to different environments

So >= PHP 5.3.0 you can use gethostname()

http://php.net/manual/en/function.gethostname.php

Upvotes: 4

TimWolla
TimWolla

Reputation: 32731

$_SERVER['HTTP_HOST'] is not populated when running it from a cronjob, the file is not accessed via HTTP.

You will either have to hardcode the Host or pass it via a command line argument and access it via the $_SERVER['argv'] array.

Upvotes: 20

alwaysLearn
alwaysLearn

Reputation: 6950

Try running cron job with curl .. It will populate your $_SERVER['HTTP_HOST'].

syntax on linux is like

curl http://yourdomain/yourfile.php

Upvotes: 7

Xyz
Xyz

Reputation: 6013

As previously stated, $_SERVER is not present when you run php via php-cli.

Though, there is an option to run your cron'd scripts in php-cgi, where you will have $_SERVER. If you curl to a local web server, then $_SERVER will be populated. 

$ cat /etc/cron.daily/mydailyphpwork
/usr/bin/curl http://domain.tld/path/to/cron-script.php &> /dev/null

However, I think you should indeed stick with the solutions proposed by TimWolla or DerVO, unless you really need this behaviour.

Pros:

  • You will get all $_SERVER variables set as expected.
  • If you need to rewrite a lot of code with if-else's this might be preferred as you don't need to change any code.

Cons:

  • It is kind of a workaround and probably means a slight increase in cpu load.

Upvotes: 6

DerVO
DerVO

Reputation: 3679

When php is executed on the command line, $_SERVER['HTTP_HOST'] is (of course) not available.

You can just suppress the error using the @ sign or be a bit more cautious using a construct line:

$host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : 'CLI';

Upvotes: 7

Hristo Petev
Hristo Petev

Reputation: 309

You can hard code the value of $_SERVER[HTTP_HOST] if it is empty, or you can perform some other check.

Upvotes: 2

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