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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 = 'hello world')
{ echo $message . "\n";
}
}
Cut to the project root directory, command line output php yii hello, output hello world indicating that the environment is normal
2. Write the code:
You can Create a new controller file in the commands folder, inherit yii\console\Controller; define class methods, the actionIndex method is generally the default route,
When debugging, enter php yii in the project root directory Add the controller name (lowercase)/route (can be omitted if index)
Third, Linux scheduled task crontab.
1About 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 commands
The first column represents minutes 1 to 59. Each minute is represented by * or */1
The second column represents hours 1 to 23 (0 represents 0 o'clock) The 3rd column represents the date 1~31
The 4th column represents the month 1~12
The 5th column identifies the weekday 0~6 (0 means Sunday)
The 6th column represents the command to be run
3 Usage examples
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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