crontab没有正确运行php脚本

Question

我正在尝试运行基于SendGrid和cron的自动邮件服务.我已经尝试了所有可能的组合来使PHP解释器运行我的脚本,虽然cron日志说每分钟执行一次作业,我定义的日志文件仍然是空的,没有收到任何电子邮件,但是当我通过浏览器访问页面时一切正常.

mydev.com是我在我的机器上使用的虚拟主机,我没有对php配置进行任何更改(最长执行时间等).

此外,我在网上做了我的研究,我安装了php5-cli,以及所有需要的依赖项.

下面是我在终端输入sudo crontab -e后添加到cron文件的行:

* * * * * php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null
* * * * * /usr/bin/php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null
* * * * * /usr/bin/php http://mydev.com/dev/mailServiceTest.php   >> /var/www/mydev/CRON_LOG.txt 2> /dev/null

* * * * * /usr/bin/lynx http://mydev.com/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null

这是cron日志的输出:

Apr 15 15:13:01 oleg-Lenovo-G580 CRON[8948]: (root) CMD (/usr/bin/php http://mydev.com/dev/mailServiceTest.php   >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:13:01 oleg-Lenovo-G580 CRON[8947]: (root) CMD (php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:13:01 oleg-Lenovo-G580 CRON[8949]: (root) CMD (/usr/bin/php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:13:01 oleg-Lenovo-G580 CRON[8953]: (root) CMD (/usr/bin/lynx http://mydev.com/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:14:01 oleg-Lenovo-G580 CRON[8964]: (root) CMD (/usr/bin/lynx http://mydev.com/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:14:01 oleg-Lenovo-G580 CRON[8966]: (root) CMD (php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:14:01 oleg-Lenovo-G580 CRON[8965]: (root) CMD (/usr/bin/php http://mydev.com/dev/mailServiceTest.php   >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:14:01 oleg-Lenovo-G580 CRON[8970]: (root) CMD (/usr/bin/php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:15:01 oleg-Lenovo-G580 CRON[8992]: (root) CMD (/usr/bin/php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:15:01 oleg-Lenovo-G580 CRON[8994]: (root) CMD (php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:15:01 oleg-Lenovo-G580 CRON[8993]: (root) CMD (/usr/bin/php http://mydev.com/dev/mailServiceTest.php   >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:15:01 oleg-Lenovo-G580 CRON[8998]: (root) CMD (/usr/bin/lynx http://mydev.com/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:16:01 oleg-Lenovo-G580 CRON[9009]: (root) CMD (/usr/bin/php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:16:01 oleg-Lenovo-G580 CRON[9011]: (root) CMD (php /var/www/mydev/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:16:01 oleg-Lenovo-G580 CRON[9012]: (root) CMD (/usr/bin/lynx http://mydev.com/dev/mailServiceTest.php >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)
Apr 15 15:16:01 oleg-Lenovo-G580 CRON[9010]: (root) CMD (/usr/bin/php http://mydev.com/dev/mailServiceTest.php   >> /var/www/mydev/CRON_LOG.txt 2> /dev/null)

任何帮助深表感谢!.

O.

编辑:

下面是应该执行的代码:

<?php
require_once($_SERVER['DOCUMENT_ROOT'] . '/classes/mailingService.php');

$myMail = new mailingService();
$myMail->execute();
$myMail->outputDuration();

?>

现在,即使我添加'echo 1;' 在文件的开头或结尾,没有什么变化,输出文件CRON_LOG.txt保持为空

Answer 1

$ _SERVER ['DOCUMENT_ROOT'] - 它是Web服务器的变量.CRON在执行脚本时不使用apache.