Realize scheduled execution of php scripts under linux, linux execution of php scripts_PHP tutorial

Realize scheduled execution of php scripts under linux, and execute php scripts under linux

Enter commands in linux

Copy code The code is as follows:

crontab -e

Then use the vim command to edit the open file and enter

Copy code The code is as follows:

0 * * * * /usr/bin/php -f /home/userxxx/update.php

Save, exit, okay, now the system will automatically execute the update.php script at every 0 o'clock. In the script, you can write functions such as database execution and automatic email sending.

Note: Directly writing 0 * * * * php -f /home/userxxx/update.php will not work.

In addition, the format of cronjob is:

MIN HOUR DOM MON DOW CMD

Field	Description	Allowed Value
MIN	Minute field	0 to 59
HOUR	Hour field	0 to 23
DOM	Day of Month	1-31
MON	Month field	1-12
DOW	Day Of Week	0-6 (0 means Sunday)
CMD	Command	Any command to be executed.

Use (-) to delimit the range

For example: 0 0-6 * * * command means executing command

from 0-6 o'clock every day

Use (,) to enumerate time

For example: 0,15,30,45 * * * * command means that command will be executed at 0 minutes, 15 minutes, 45 minutes and 30 minutes of each hour

Use (/) to specify the interval

For example: * */4 * * * command means executing command

every four hours

Combined usage

0-10/2 * * * * command means executing command

every 2 minutes in the first 10 minutes

http://www.bkjia.com/PHPjc/958258.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/958258.htmlTechArticleLinux implements scheduled execution of php scripts. Linux executes php scripts. Enter the command in linux and copy the code. The code is as follows: crontab - e Then use the vim command to edit the open file and enter copy...