Commands mode in yii2 and crontab scheduled tasks under configuration

1. Detection environment:

First we switch to the project root directory. If yii2 is installed normally, there will be a commands folder with a sample file HelloController.php in it.

<?php
namespace app\commands;use yii\console\Controller;class HelloController extends Controller
{    public function actionIndex($message = &#39;hello world&#39;)
    {        echo $message . "\n";
    }
}

Switch to the project Root directory, command line output php yii hello, output hello world indicating that the environment is normal

2. Write code:

You can create a new controller file in the commands folder and inherit yii\console \Controller; Define class method, actionIndex method is generally the default route,

When debugging, enter php yii in the project root directory and add the controller name (lowercase)/routing (index can be omitted )

3. Linux scheduled task crontab.

1 About crontab:

　In the linux environment, crontab -l displays scheduled tasks, crontab -e edits scheduled tasks

2 Basic syntax

　　Basic format:
　　*　　*　*　*　*　command
　　 Time-sharing, day, month and week command

　　

　 Column 1 Indicates minutes from 1 to 59. Each minute is represented by * or */1
. The second column indicates hours from 1 to 23 (0 indicates 0 o'clock)
. The third column indicates the date from 1 to 31
. The fourth column indicates the month. 1～12
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 around 5 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 Number 5 weekdays 0 ～ 6 (0 means Sunday)
　　 The command to be run in the 6th column #30

21

* * * /usr/local/etc/rc.d/lighttpd restart#　　　 #The above example indicates that apache is restarted at 21:30 every night.

　45 4

1

,

10,22 * * /usr/local/etc/rc.d/lighttpd restart　　#The above example indicates that apache is restarted at 4:45 on the 1st, 10th, and 22nd of every month.

　10

1

*

*

6 ,0 /usr/local/etc/rc.d/lighttpd restart #　　　#The above example represents 1 of every Saturday and Sunday : 10Restart apache.

　　0,30 18-23 * * * /usr/local/etc/rc.d/lighttpd restart

##　　　#The above example indicates that between 18:00 and 18:00 every day Restart apache every 30 minutes between 23:00.

　0

23 * * 6 /usr/local/etc/rc.d/lighttpd restart#　　 #The above example indicates that apache is restarted at 11:00 pm every Saturday.

　　0

*/1 * * * /usr/local/etc/rc.d/lighttpd restart ##　　#Restart apache every hour

Four, Linux scheduled task crontab executes the controller php file content under commands

Follow the third step and add php yii + project root path + routing ( Controller name/method name)

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